Merge branch 'develop' into fix/visibility-widening

43 files changed, 1229 insertions, 104 deletions

diff --git a/packages/frontend/src/components/MkAnalogClock.stories.impl.ts b/packages/frontend/src/components/MkAnalogClock.stories.impl.ts
new file mode 100644
index 0000000000..05190aa268
--- /dev/null
+++ b/packages/frontend/src/components/MkAnalogClock.stories.impl.ts
@@ -0,0 +1,28 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import MkAnalogClock from './MkAnalogClock.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkAnalogClock,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkAnalogClock v-bind="props" />',
+		};
+	},
+	parameters: {
+		layout: 'fullscreen',
+	},
+} satisfies StoryObj<typeof MkAnalogClock>;
diff --git a/packages/frontend/src/components/MkButton.stories.impl.ts b/packages/frontend/src/components/MkButton.stories.impl.ts
new file mode 100644
index 0000000000..e1c1c54d10
--- /dev/null
+++ b/packages/frontend/src/components/MkButton.stories.impl.ts
@@ -0,0 +1,30 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+/* eslint-disable import/no-default-export */
+/* eslint-disable import/no-duplicates */
+import { StoryObj } from '@storybook/vue3';
+import MkButton from './MkButton.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkButton,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkButton v-bind="props">Text</MkButton>',
+		};
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkButton>;
diff --git a/packages/frontend/src/components/MkCaptcha.stories.impl.ts b/packages/frontend/src/components/MkCaptcha.stories.impl.ts
new file mode 100644
index 0000000000..6ac437a277
--- /dev/null
+++ b/packages/frontend/src/components/MkCaptcha.stories.impl.ts
@@ -0,0 +1,2 @@
+import MkCaptcha from './MkCaptcha.vue';
+void MkCaptcha;
diff --git a/packages/frontend/src/components/MkContextMenu.vue b/packages/frontend/src/components/MkContextMenu.vue
index 5bdf477241..b81c806b0c 100644
--- a/packages/frontend/src/components/MkContextMenu.vue
+++ b/packages/frontend/src/components/MkContextMenu.vue
@@ -17,8 +17,8 @@ import { onMounted, onBeforeUnmount } from 'vue';
 import MkMenu from './MkMenu.vue';
 import { MenuItem } from './types/menu.vue';
 import contains from '@/scripts/contains';
-import * as os from '@/os';
 import { defaultStore } from '@/store';
+import * as os from '@/os';
 
 const props = defineProps<{
 	items: MenuItem[];
diff --git a/packages/frontend/src/components/MkMenu.vue b/packages/frontend/src/components/MkMenu.vue
index 9e3022896c..e513a65a32 100644
--- a/packages/frontend/src/components/MkMenu.vue
+++ b/packages/frontend/src/components/MkMenu.vue
@@ -1,5 +1,5 @@
 <template>
-<div>
+<div role="menu">
 	<div
 		ref="itemsEl" v-hotkey="keymap"
 		class="_popup _shadow"
@@ -8,37 +8,37 @@
 		@contextmenu.self="e => e.preventDefault()"
 	>
 		<template v-for="(item, i) in items2">
-			<div v-if="item === null" :class="$style.divider"></div>
-			<span v-else-if="item.type === 'label'" :class="[$style.label, $style.item]">
+			<div v-if="item === null" role="separator" :class="$style.divider"></div>
+			<span v-else-if="item.type === 'label'" role="menuitem" :class="[$style.label, $style.item]">
 				<span>{{ item.text }}</span>
 			</span>
-			<span v-else-if="item.type === 'pending'" :tabindex="i" :class="[$style.pending, $style.item]">
+			<span v-else-if="item.type === 'pending'" role="menuitem" :tabindex="i" :class="[$style.pending, $style.item]">
 				<span><MkEllipsis/></span>
 			</span>
-			<MkA v-else-if="item.type === 'link'" :to="item.to" :tabindex="i" class="_button" :class="$style.item" @click.passive="close(true)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
+			<MkA v-else-if="item.type === 'link'" role="menuitem" :to="item.to" :tabindex="i" class="_button" :class="$style.item" @click.passive="close(true)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
 				<i v-if="item.icon" class="ti-fw" :class="[$style.icon, item.icon]"></i>
 				<MkAvatar v-if="item.avatar" :user="item.avatar" :class="$style.avatar"/>
 				<span>{{ item.text }}</span>
 				<span v-if="item.indicate" :class="$style.indicator"><i class="_indicatorCircle"></i></span>
 			</MkA>
-			<a v-else-if="item.type === 'a'" :href="item.href" :target="item.target" :download="item.download" :tabindex="i" class="_button" :class="$style.item" @click="close(true)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
+			<a v-else-if="item.type === 'a'" role="menuitem" :href="item.href" :target="item.target" :download="item.download" :tabindex="i" class="_button" :class="$style.item" @click="close(true)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
 				<i v-if="item.icon" class="ti-fw" :class="[$style.icon, item.icon]"></i>
 				<span>{{ item.text }}</span>
 				<span v-if="item.indicate" :class="$style.indicator"><i class="_indicatorCircle"></i></span>
 			</a>
-			<button v-else-if="item.type === 'user'" :tabindex="i" class="_button" :class="[$style.item, { [$style.active]: item.active }]" :disabled="item.active" @click="clicked(item.action, $event)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
+			<button v-else-if="item.type === 'user'" role="menuitem" :tabindex="i" class="_button" :class="[$style.item, { [$style.active]: item.active }]" :disabled="item.active" @click="clicked(item.action, $event)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
 				<MkAvatar :user="item.user" :class="$style.avatar"/><MkUserName :user="item.user"/>
 				<span v-if="item.indicate" :class="$style.indicator"><i class="_indicatorCircle"></i></span>
 			</button>
-			<span v-else-if="item.type === 'switch'" :tabindex="i" :class="$style.item" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
+			<span v-else-if="item.type === 'switch'" role="menuitemcheckbox" :tabindex="i" :class="$style.item" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
 				<MkSwitch v-model="item.ref" :disabled="item.disabled" class="form-switch">{{ item.text }}</MkSwitch>
 			</span>
-			<button v-else-if="item.type === 'parent'" :tabindex="i" class="_button" :class="[$style.item, $style.parent, { [$style.childShowing]: childShowingItem === item }]" @mouseenter="showChildren(item, $event)">
+			<button v-else-if="item.type === 'parent'" role="menuitem" :tabindex="i" class="_button" :class="[$style.item, $style.parent, { [$style.childShowing]: childShowingItem === item }]" @mouseenter="showChildren(item, $event)">
 				<i v-if="item.icon" class="ti-fw" :class="[$style.icon, item.icon]"></i>
 				<span>{{ item.text }}</span>
 				<span :class="$style.caret"><i class="ti ti-chevron-right ti-fw"></i></span>
 			</button>
-			<button v-else :tabindex="i" class="_button" :class="[$style.item, { [$style.danger]: item.danger, [$style.active]: item.active }]" :disabled="item.active" @click="clicked(item.action, $event)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
+			<button v-else :tabindex="i" class="_button" role="menuitem" :class="[$style.item, { [$style.danger]: item.danger, [$style.active]: item.active }]" :disabled="item.active" @click="clicked(item.action, $event)" @mouseenter.passive="onItemMouseEnter(item)" @mouseleave.passive="onItemMouseLeave(item)">
 				<i v-if="item.icon" class="ti-fw" :class="[$style.icon, item.icon]"></i>
 				<MkAvatar v-if="item.avatar" :user="item.avatar" :class="$style.avatar"/>
 				<span>{{ item.text }}</span>
diff --git a/packages/frontend/src/components/MkNotification.vue b/packages/frontend/src/components/MkNotification.vue
index b60967de02..efae687e66 100644
--- a/packages/frontend/src/components/MkNotification.vue
+++ b/packages/frontend/src/components/MkNotification.vue
@@ -83,7 +83,7 @@
 </template>
 
 <script lang="ts" setup>
-import { ref, shallowRef, onMounted, onUnmounted, watch } from 'vue';
+import { ref, shallowRef } from 'vue';
 import * as misskey from 'misskey-js';
 import MkReactionIcon from '@/components/MkReactionIcon.vue';
 import MkFollowButton from '@/components/MkFollowButton.vue';
@@ -94,7 +94,6 @@ import { notePage } from '@/filters/note';
 import { userPage } from '@/filters/user';
 import { i18n } from '@/i18n';
 import * as os from '@/os';
-import { stream } from '@/stream';
 import { useTooltip } from '@/scripts/use-tooltip';
 import { $i } from '@/account';
 
@@ -110,35 +109,6 @@ const props = withDefaults(defineProps<{
 const elRef = shallowRef<HTMLElement>(null);
 const reactionRef = ref(null);
 
-let readObserver: IntersectionObserver | undefined;
-let connection;
-
-onMounted(() => {
-	if (!props.notification.isRead) {
-		readObserver = new IntersectionObserver((entries, observer) => {
-			if (!entries.some(entry => entry.isIntersecting)) return;
-			stream.send('readNotification', {
-				id: props.notification.id,
-			});
-			observer.disconnect();
-		});
-
-		readObserver.observe(elRef.value);
-
-		connection = stream.useChannel('main');
-		connection.on('readAllNotifications', () => readObserver.disconnect());
-
-		watch(props.notification.isRead, () => {
-			readObserver.disconnect();
-		});
-	}
-});
-
-onUnmounted(() => {
-	if (readObserver) readObserver.disconnect();
-	if (connection) connection.dispose();
-});
-
 const followRequestDone = ref(false);
 
 const acceptFollowRequest = () => {
diff --git a/packages/frontend/src/components/MkNotifications.vue b/packages/frontend/src/components/MkNotifications.vue
index 874f1f90ea..1aea95fe0e 100644
--- a/packages/frontend/src/components/MkNotifications.vue
+++ b/packages/frontend/src/components/MkNotifications.vue
@@ -29,7 +29,6 @@ import { notificationTypes } from '@/const';
 
 const props = defineProps<{
 	includeTypes?: typeof notificationTypes[number][];
-	unreadOnly?: boolean;
 }>();
 
 const pagingComponent = shallowRef<InstanceType<typeof MkPagination>>();
@@ -40,23 +39,17 @@ const pagination: Paging = {
 	params: computed(() => ({
 		includeTypes: props.includeTypes ?? undefined,
 		excludeTypes: props.includeTypes ? undefined : $i.mutingNotificationTypes,
-		unreadOnly: props.unreadOnly,
 	})),
 };
 
 const onNotification = (notification) => {
 	const isMuted = props.includeTypes ? !props.includeTypes.includes(notification.type) : $i.mutingNotificationTypes.includes(notification.type);
 	if (isMuted || document.visibilityState === 'visible') {
-		stream.send('readNotification', {
-			id: notification.id,
-		});
+		stream.send('readNotification');
 	}
 
 	if (!isMuted) {
-		pagingComponent.value.prepend({
-			...notification,
-			isRead: document.visibilityState === 'visible',
-		});
+		pagingComponent.value.prepend(notification);
 	}
 };
 
@@ -65,30 +58,6 @@ let connection;
 onMounted(() => {
 	connection = stream.useChannel('main');
 	connection.on('notification', onNotification);
-	connection.on('readAllNotifications', () => {
-		if (pagingComponent.value) {
-			for (const item of pagingComponent.value.queue) {
-				item.isRead = true;
-			}
-			for (const item of pagingComponent.value.items) {
-				item.isRead = true;
-			}
-		}
-	});
-	connection.on('readNotifications', notificationIds => {
-		if (pagingComponent.value) {
-			for (let i = 0; i < pagingComponent.value.queue.length; i++) {
-				if (notificationIds.includes(pagingComponent.value.queue[i].id)) {
-					pagingComponent.value.queue[i].isRead = true;
-				}
-			}
-			for (let i = 0; i < (pagingComponent.value.items || []).length; i++) {
-				if (notificationIds.includes(pagingComponent.value.items[i].id)) {
-					pagingComponent.value.items[i].isRead = true;
-				}
-			}
-		}
-	});
 });
 
 onUnmounted(() => {
diff --git a/packages/frontend/src/components/MkOmit.vue b/packages/frontend/src/components/MkOmit.vue
index 9232ebb7c9..0f148022bf 100644
--- a/packages/frontend/src/components/MkOmit.vue
+++ b/packages/frontend/src/components/MkOmit.vue
@@ -12,7 +12,7 @@ import { onMounted } from 'vue';
 import { i18n } from '@/i18n';
 
 const props = withDefaults(defineProps<{
-	maxHeight: number;
+	maxHeight?: number;
 }>(), {
 	maxHeight: 200,
 });
diff --git a/packages/frontend/src/components/MkUrlPreview.vue b/packages/frontend/src/components/MkUrlPreview.vue
index 635ac3e8bd..9c5622b1c5 100644
--- a/packages/frontend/src/components/MkUrlPreview.vue
+++ b/packages/frontend/src/components/MkUrlPreview.vue
@@ -150,7 +150,7 @@ function adjustTweetHeight(message: any) {
 }
 
 const openPlayer = (): void => {
-	os.popup(defineAsyncComponent(() => import('@/components/MkYoutubePlayer.vue')), {
+	os.popup(defineAsyncComponent(() => import('@/components/MkYouTubePlayer.vue')), {
 		url: requestUrl.href,
 	});
 };
diff --git a/packages/frontend/src/components/MkYoutubePlayer.vue b/packages/frontend/src/components/MkYouTubePlayer.vue
index 4d765fe2f7..4d765fe2f7 100644
--- a/packages/frontend/src/components/MkYoutubePlayer.vue
+++ b/packages/frontend/src/components/MkYouTubePlayer.vue
diff --git a/packages/frontend/src/components/global/MkA.stories.impl.ts b/packages/frontend/src/components/global/MkA.stories.impl.ts
new file mode 100644
index 0000000000..72d069e853
--- /dev/null
+++ b/packages/frontend/src/components/global/MkA.stories.impl.ts
@@ -0,0 +1,47 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { expect } from '@storybook/jest';
+import { userEvent, within } from '@storybook/testing-library';
+import { StoryObj } from '@storybook/vue3';
+import MkA from './MkA.vue';
+import { tick } from '@/scripts/test-utils';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkA,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkA v-bind="props">Text</MkA>',
+		};
+	},
+	async play({ canvasElement }) {
+		const canvas = within(canvasElement);
+		const a = canvas.getByRole<HTMLAnchorElement>('link');
+		await expect(a.href).toMatch(/^https?:\/\/.*#test$/);
+		await userEvent.click(a, { button: 2 });
+		await tick();
+		const menu = canvas.getByRole('menu');
+		await expect(menu).toBeInTheDocument();
+		await userEvent.click(a, { button: 0 });
+		a.blur();
+		await tick();
+		await expect(menu).not.toBeInTheDocument();
+	},
+	args: {
+		to: '#test',
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkA>;
diff --git a/packages/frontend/src/components/global/MkAcct.stories.impl.ts b/packages/frontend/src/components/global/MkAcct.stories.impl.ts
new file mode 100644
index 0000000000..7dfa1a14f2
--- /dev/null
+++ b/packages/frontend/src/components/global/MkAcct.stories.impl.ts
@@ -0,0 +1,43 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import { userDetailed } from '../../../.storybook/fakes';
+import MkAcct from './MkAcct.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkAcct,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkAcct v-bind="props" />',
+		};
+	},
+	args: {
+		user: {
+			...userDetailed,
+			host: null,
+		},
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkAcct>;
+export const Detail = {
+	...Default,
+	args: {
+		...Default.args,
+		user: userDetailed,
+		detail: true,
+	},
+} satisfies StoryObj<typeof MkAcct>;
diff --git a/packages/frontend/src/components/global/MkAcct.vue b/packages/frontend/src/components/global/MkAcct.vue
index e06ab64e86..2b9f892fc6 100644
--- a/packages/frontend/src/components/global/MkAcct.vue
+++ b/packages/frontend/src/components/global/MkAcct.vue
@@ -18,4 +18,3 @@ defineProps<{
 
 const host = toUnicode(hostRaw);
 </script>
-
diff --git a/packages/frontend/src/components/global/MkAd.stories.impl.ts b/packages/frontend/src/components/global/MkAd.stories.impl.ts
new file mode 100644
index 0000000000..7d8a42a03c
--- /dev/null
+++ b/packages/frontend/src/components/global/MkAd.stories.impl.ts
@@ -0,0 +1,120 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { expect } from '@storybook/jest';
+import { userEvent, within } from '@storybook/testing-library';
+import { StoryObj } from '@storybook/vue3';
+import { i18n } from '@/i18n';
+import MkAd from './MkAd.vue';
+const common = {
+	render(args) {
+		return {
+			components: {
+				MkAd,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkAd v-bind="props" />',
+		};
+	},
+	async play({ canvasElement, args }) {
+		const canvas = within(canvasElement);
+		const a = canvas.getByRole<HTMLAnchorElement>('link');
+		await expect(a.href).toMatch(/^https?:\/\/.*#test$/);
+		const img = within(a).getByRole('img');
+		await expect(img).toBeInTheDocument();
+		let buttons = canvas.getAllByRole<HTMLButtonElement>('button');
+		await expect(buttons).toHaveLength(1);
+		const i = buttons[0];
+		await expect(i).toBeInTheDocument();
+		await userEvent.click(i);
+		await expect(a).not.toBeInTheDocument();
+		await expect(i).not.toBeInTheDocument();
+		buttons = canvas.getAllByRole<HTMLButtonElement>('button');
+		await expect(buttons).toHaveLength(args.__hasReduce ? 2 : 1);
+		const reduce = args.__hasReduce ? buttons[0] : null;
+		const back = buttons[args.__hasReduce ? 1 : 0];
+		if (reduce) {
+			await expect(reduce).toBeInTheDocument();
+			await expect(reduce).toHaveTextContent(i18n.ts._ad.reduceFrequencyOfThisAd);
+		}
+		await expect(back).toBeInTheDocument();
+		await expect(back).toHaveTextContent(i18n.ts._ad.back);
+		await userEvent.click(back);
+		if (reduce) {
+			await expect(reduce).not.toBeInTheDocument();
+		}
+		await expect(back).not.toBeInTheDocument();
+		const aAgain = canvas.getByRole<HTMLAnchorElement>('link');
+		await expect(aAgain).toBeInTheDocument();
+		const imgAgain = within(aAgain).getByRole('img');
+		await expect(imgAgain).toBeInTheDocument();
+	},
+	args: {
+		prefer: [],
+		specify: {
+			id: 'someadid',
+			radio: 1,
+			url: '#test',
+		},
+		__hasReduce: true,
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkAd>;
+export const Square = {
+	...common,
+	args: {
+		...common.args,
+		specify: {
+			...common.args.specify,
+			place: 'square',
+			imageUrl:
+				'https://github.com/misskey-dev/misskey/blob/master/packages/frontend/assets/about-icon.png?raw=true',
+		},
+	},
+} satisfies StoryObj<typeof MkAd>;
+export const Horizontal = {
+	...common,
+	args: {
+		...common.args,
+		specify: {
+			...common.args.specify,
+			place: 'horizontal',
+			imageUrl:
+				'https://github.com/misskey-dev/misskey/blob/master/packages/frontend/assets/fedi.jpg?raw=true',
+		},
+	},
+} satisfies StoryObj<typeof MkAd>;
+export const HorizontalBig = {
+	...common,
+	args: {
+		...common.args,
+		specify: {
+			...common.args.specify,
+			place: 'horizontal-big',
+			imageUrl:
+				'https://github.com/misskey-dev/misskey/blob/master/packages/frontend/assets/fedi.jpg?raw=true',
+		},
+	},
+} satisfies StoryObj<typeof MkAd>;
+export const ZeroRatio = {
+	...Square,
+	args: {
+		...Square.args,
+		specify: {
+			...Square.args.specify,
+			ratio: 0,
+		},
+		__hasReduce: false,
+	},
+} satisfies StoryObj<typeof MkAd>;
diff --git a/packages/frontend/src/components/global/MkAd.vue b/packages/frontend/src/components/global/MkAd.vue
index b8f749bd1c..5799f99d5f 100644
--- a/packages/frontend/src/components/global/MkAd.vue
+++ b/packages/frontend/src/components/global/MkAd.vue
@@ -20,13 +20,13 @@
 
 <script lang="ts" setup>
 import { ref } from 'vue';
+import { i18n } from '@/i18n';
 import { instance } from '@/instance';
 import { host } from '@/config';
 import MkButton from '@/components/MkButton.vue';
 import { defaultStore } from '@/store';
 import * as os from '@/os';
 import { $i } from '@/account';
-import { i18n } from '@/i18n';
 
 type Ad = (typeof instance)['ads'][number];
 
diff --git a/packages/frontend/src/components/global/MkAvatar.stories.impl.ts b/packages/frontend/src/components/global/MkAvatar.stories.impl.ts
new file mode 100644
index 0000000000..6c46f75b5f
--- /dev/null
+++ b/packages/frontend/src/components/global/MkAvatar.stories.impl.ts
@@ -0,0 +1,66 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import { userDetailed } from '../../../.storybook/fakes';
+import MkAvatar from './MkAvatar.vue';
+const common = {
+	render(args) {
+		return {
+			components: {
+				MkAvatar,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkAvatar v-bind="props" />',
+		};
+	},
+	args: {
+		user: userDetailed,
+	},
+	decorators: [
+		(Story, context) => ({
+			// eslint-disable-next-line quotes
+			template: `<div :style="{ display: 'grid', width: '${context.args.size}px', height: '${context.args.size}px' }"><story/></div>`,
+		}),
+	],
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkAvatar>;
+export const ProfilePage = {
+	...common,
+	args: {
+		...common.args,
+		size: 120,
+		indicator: true,
+	},
+} satisfies StoryObj<typeof MkAvatar>;
+export const ProfilePageCat = {
+	...ProfilePage,
+	args: {
+		...ProfilePage.args,
+		user: {
+			...userDetailed,
+			isCat: true,
+		},
+	},
+	parameters: {
+		...ProfilePage.parameters,
+		chromatic: {
+			/* Your story couldn’t be captured because it exceeds our 25,000,000px limit. Its dimensions are 5,504,893x5,504,892px. Possible ways to resolve:
+			 * * Separate pages into components
+			 * * Minimize the number of very large elements in a story
+			 */
+			disableSnapshot: true,
+		},
+	},
+} satisfies StoryObj<typeof MkAvatar>;
diff --git a/packages/frontend/src/components/global/MkAvatar.vue b/packages/frontend/src/components/global/MkAvatar.vue
index 9a21941c8d..0cc30a887f 100644
--- a/packages/frontend/src/components/global/MkAvatar.vue
+++ b/packages/frontend/src/components/global/MkAvatar.vue
@@ -148,6 +148,7 @@ watch(() => props.user.avatarBlurhash, () => {
 		width: 100%;
 		height: 100%;
 		padding: 50%;
+		pointer-events: none;
 
 		&.mask {
 			-webkit-mask:
diff --git a/packages/frontend/src/components/global/MkCustomEmoji.stories.impl.ts b/packages/frontend/src/components/global/MkCustomEmoji.stories.impl.ts
new file mode 100644
index 0000000000..36ab85b579
--- /dev/null
+++ b/packages/frontend/src/components/global/MkCustomEmoji.stories.impl.ts
@@ -0,0 +1,45 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import MkCustomEmoji from './MkCustomEmoji.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkCustomEmoji,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkCustomEmoji v-bind="props" />',
+		};
+	},
+	args: {
+		name: 'mi',
+		url: 'https://github.com/misskey-dev/misskey/blob/master/packages/frontend/assets/about-icon.png?raw=true',
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkCustomEmoji>;
+export const Normal = {
+	...Default,
+	args: {
+		...Default.args,
+		normal: true,
+	},
+} satisfies StoryObj<typeof MkCustomEmoji>;
+export const Missing = {
+	...Default,
+	args: {
+		name: Default.args.name,
+	},
+} satisfies StoryObj<typeof MkCustomEmoji>;
diff --git a/packages/frontend/src/components/global/MkEllipsis.stories.impl.ts b/packages/frontend/src/components/global/MkEllipsis.stories.impl.ts
new file mode 100644
index 0000000000..65405a9bc8
--- /dev/null
+++ b/packages/frontend/src/components/global/MkEllipsis.stories.impl.ts
@@ -0,0 +1,32 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import isChromatic from 'chromatic/isChromatic';
+import MkEllipsis from './MkEllipsis.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkEllipsis,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkEllipsis v-bind="props" />',
+		};
+	},
+	args: {
+		static: isChromatic(),
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkEllipsis>;
diff --git a/packages/frontend/src/components/global/MkEllipsis.vue b/packages/frontend/src/components/global/MkEllipsis.vue
index b3cf69c075..c8f6cd3394 100644
--- a/packages/frontend/src/components/global/MkEllipsis.vue
+++ b/packages/frontend/src/components/global/MkEllipsis.vue
@@ -1,9 +1,19 @@
 <template>
-<span :class="$style.root">
+<span :class="[$style.root, { [$style.static]: static }]">
 	<span :class="$style.dot">.</span><span :class="$style.dot">.</span><span :class="$style.dot">.</span>
 </span>
 </template>
 
+<script lang="ts" setup>
+import { } from 'vue';
+
+const props = withDefaults(defineProps<{
+	static?: boolean;
+}>(), {
+	static: false,
+});
+</script>
+
 <style lang="scss" module>
 @keyframes ellipsis {
 	0%, 80%, 100% {
@@ -15,7 +25,9 @@
 }
 
 .root {
-	
+	&.static > .dot {
+		animation-play-state: paused;
+	}
 }
 
 .dot {
diff --git a/packages/frontend/src/components/global/MkEmoji.stories.impl.ts b/packages/frontend/src/components/global/MkEmoji.stories.impl.ts
new file mode 100644
index 0000000000..f9900375f7
--- /dev/null
+++ b/packages/frontend/src/components/global/MkEmoji.stories.impl.ts
@@ -0,0 +1,31 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import MkEmoji from './MkEmoji.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkEmoji,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkEmoji v-bind="props" />',
+		};
+	},
+	args: {
+		emoji: '❤',
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkEmoji>;
diff --git a/packages/frontend/src/components/global/MkError.stories.meta.ts b/packages/frontend/src/components/global/MkError.stories.meta.ts
new file mode 100644
index 0000000000..51d763ada7
--- /dev/null
+++ b/packages/frontend/src/components/global/MkError.stories.meta.ts
@@ -0,0 +1,5 @@
+export const argTypes = {
+	retry: {
+		action: 'retry',
+	},
+};
diff --git a/packages/frontend/src/components/global/MkLoading.stories.impl.ts b/packages/frontend/src/components/global/MkLoading.stories.impl.ts
new file mode 100644
index 0000000000..9dcc0cdea1
--- /dev/null
+++ b/packages/frontend/src/components/global/MkLoading.stories.impl.ts
@@ -0,0 +1,60 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import isChromatic from 'chromatic/isChromatic';
+import MkLoading from './MkLoading.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkLoading,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkLoading v-bind="props" />',
+		};
+	},
+	args: {
+		static: isChromatic(),
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkLoading>;
+export const Inline = {
+	...Default,
+	args: {
+		...Default.args,
+		inline: true,
+	},
+} satisfies StoryObj<typeof MkLoading>;
+export const Colored = {
+	...Default,
+	args: {
+		...Default.args,
+		colored: true,
+	},
+} satisfies StoryObj<typeof MkLoading>;
+export const Mini = {
+	...Default,
+	args: {
+		...Default.args,
+		mini: true,
+	},
+} satisfies StoryObj<typeof MkLoading>;
+export const Em = {
+	...Default,
+	args: {
+		...Default.args,
+		em: true,
+	},
+} satisfies StoryObj<typeof MkLoading>;
diff --git a/packages/frontend/src/components/global/MkLoading.vue b/packages/frontend/src/components/global/MkLoading.vue
index 64e12e3b44..4311f9fe8a 100644
--- a/packages/frontend/src/components/global/MkLoading.vue
+++ b/packages/frontend/src/components/global/MkLoading.vue
@@ -6,7 +6,7 @@
 				<circle cx="64" cy="64" r="64" style="fill:none;stroke:currentColor;stroke-width:21.33px;"/>
 			</g>
 		</svg>
-		<svg :class="[$style.spinner, $style.fg]" viewBox="0 0 168 168" xmlns="http://www.w3.org/2000/svg">
+		<svg :class="[$style.spinner, $style.fg, { [$style.static]: static }]" viewBox="0 0 168 168" xmlns="http://www.w3.org/2000/svg">
 			<g transform="matrix(1.125,0,0,1.125,12,12)">
 				<path d="M128,64C128,28.654 99.346,0 64,0C99.346,0 128,28.654 128,64Z" style="fill:none;stroke:currentColor;stroke-width:21.33px;"/>
 			</g>
@@ -19,11 +19,13 @@
 import { } from 'vue';
 
 const props = withDefaults(defineProps<{
+	static?: boolean;
 	inline?: boolean;
 	colored?: boolean;
 	mini?: boolean;
 	em?: boolean;
 }>(), {
+	static: false,
 	inline: false,
 	colored: true,
 	mini: false,
@@ -97,5 +99,9 @@ const props = withDefaults(defineProps<{
 
 .fg {
 	animation: spinner 0.5s linear infinite;
+
+	&.static {
+		animation-play-state: paused;
+	}
 }
 </style>
diff --git a/packages/frontend/src/components/global/MkMisskeyFlavoredMarkdown.stories.impl.ts b/packages/frontend/src/components/global/MkMisskeyFlavoredMarkdown.stories.impl.ts
new file mode 100644
index 0000000000..f6811b6747
--- /dev/null
+++ b/packages/frontend/src/components/global/MkMisskeyFlavoredMarkdown.stories.impl.ts
@@ -0,0 +1,74 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import MkMisskeyFlavoredMarkdown from './MkMisskeyFlavoredMarkdown.vue';
+import { within } from '@storybook/testing-library';
+import { expect } from '@storybook/jest';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkMisskeyFlavoredMarkdown,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkMisskeyFlavoredMarkdown v-bind="props" />',
+		};
+	},
+	async play({ canvasElement, args }) {
+		const canvas = within(canvasElement);
+		if (args.plain) {
+			const aiHelloMiskist = canvas.getByText('@ai *Hello*, #Miskist!');
+			await expect(aiHelloMiskist).toBeInTheDocument();
+		} else {
+			const ai = canvas.getByText('@ai');
+			await expect(ai).toBeInTheDocument();
+			await expect(ai.closest('a')).toHaveAttribute('href', '/@ai');
+			const hello = canvas.getByText('Hello');
+			await expect(hello).toBeInTheDocument();
+			await expect(hello.style.fontStyle).toBe('oblique');
+			const miskist = canvas.getByText('#Miskist');
+			await expect(miskist).toBeInTheDocument();
+			await expect(miskist).toHaveAttribute('href', args.isNote ?? true ? '/tags/Miskist' : '/user-tags/Miskist');
+		}
+		const heart = canvas.getByAltText('❤');
+		await expect(heart).toBeInTheDocument();
+		await expect(heart).toHaveAttribute('src', '/twemoji/2764.svg');
+	},
+	args: {
+		text: '@ai *Hello*, #Miskist! ❤',
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkMisskeyFlavoredMarkdown>;
+export const Plain = {
+	...Default,
+	args: {
+		...Default.args,
+		plain: true,
+	},
+} satisfies StoryObj<typeof MkMisskeyFlavoredMarkdown>;
+export const Nowrap = {
+	...Default,
+	args: {
+		...Default.args,
+		nowrap: true,
+	},
+} satisfies StoryObj<typeof MkMisskeyFlavoredMarkdown>;
+export const IsNotNote = {
+	...Default,
+	args: {
+		...Default.args,
+		isNote: false,
+	},
+} satisfies StoryObj<typeof MkMisskeyFlavoredMarkdown>;
diff --git a/packages/frontend/src/components/global/MkPageHeader.stories.impl.ts b/packages/frontend/src/components/global/MkPageHeader.stories.impl.ts
new file mode 100644
index 0000000000..5519d60fc4
--- /dev/null
+++ b/packages/frontend/src/components/global/MkPageHeader.stories.impl.ts
@@ -0,0 +1,98 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { StoryObj } from '@storybook/vue3';
+import MkPageHeader from './MkPageHeader.vue';
+export const Empty = {
+	render(args) {
+		return {
+			components: {
+				MkPageHeader,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkPageHeader v-bind="props" />',
+		};
+	},
+	args: {
+		static: true,
+		tabs: [],
+	},
+	parameters: {
+		layout: 'centered',
+		chromatic: {
+			/* This component has animations that are implemented with JavaScript. So it's unstable to take a snapshot. */
+			disableSnapshot: true,
+		},
+	},
+} satisfies StoryObj<typeof MkPageHeader>;
+export const OneTab = {
+	...Empty,
+	args: {
+		...Empty.args,
+		tab: 'sometabkey',
+		tabs: [
+			{
+				key: 'sometabkey',
+				title: 'Some Tab Title',
+			},
+		],
+	},
+} satisfies StoryObj<typeof MkPageHeader>;
+export const Icon = {
+	...OneTab,
+	args: {
+		...OneTab.args,
+		tabs: [
+			{
+				...OneTab.args.tabs[0],
+				icon: 'ti ti-home',
+			},
+		],
+	},
+} satisfies StoryObj<typeof MkPageHeader>;
+export const IconOnly = {
+	...Icon,
+	args: {
+		...Icon.args,
+		tabs: [
+			{
+				...Icon.args.tabs[0],
+				title: undefined,
+				iconOnly: true,
+			},
+		],
+	},
+} satisfies StoryObj<typeof MkPageHeader>;
+export const SomeTabs = {
+	...Empty,
+	args: {
+		...Empty.args,
+		tab: 'princess',
+		tabs: [
+			{
+				key: 'princess',
+				title: 'Princess',
+				icon: 'ti ti-crown',
+			},
+			{
+				key: 'fairy',
+				title: 'Fairy',
+				icon: 'ti ti-snowflake',
+			},
+			{
+				key: 'angel',
+				title: 'Angel',
+				icon: 'ti ti-feather',
+			},
+		],
+	},
+} satisfies StoryObj<typeof MkPageHeader>;
diff --git a/packages/frontend/src/components/global/MkPageHeader.tabs.stories.impl.ts b/packages/frontend/src/components/global/MkPageHeader.tabs.stories.impl.ts
new file mode 100644
index 0000000000..6d4460d593
--- /dev/null
+++ b/packages/frontend/src/components/global/MkPageHeader.tabs.stories.impl.ts
@@ -0,0 +1,3 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import MkPageHeader_tabs from './MkPageHeader.tabs.vue';
+void MkPageHeader_tabs;
diff --git a/packages/frontend/src/components/global/MkPageHeader.tabs.vue b/packages/frontend/src/components/global/MkPageHeader.tabs.vue
index 42760da08f..9e1da64e61 100644
--- a/packages/frontend/src/components/global/MkPageHeader.tabs.vue
+++ b/packages/frontend/src/components/global/MkPageHeader.tabs.vue
@@ -33,14 +33,18 @@
 <script lang="ts">
 export type Tab = {
 	key: string;
-	title: string;
-	icon?: string;
-	iconOnly?: boolean;
 	onClick?: (ev: MouseEvent) => void;
-} & {
-	iconOnly: true;
-	iccn: string;
-};
+} & (
+	| {
+			iconOnly?: false;
+			title: string;
+			icon?: string;
+		}
+	| {
+			iconOnly: true;
+			icon: string;
+		}
+);
 </script>
 
 <script lang="ts" setup>
diff --git a/packages/frontend/src/components/global/MkStickyContainer.stories.impl.ts b/packages/frontend/src/components/global/MkStickyContainer.stories.impl.ts
new file mode 100644
index 0000000000..97b8cc0c5b
--- /dev/null
+++ b/packages/frontend/src/components/global/MkStickyContainer.stories.impl.ts
@@ -0,0 +1,3 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import MkStickyContainer from './MkStickyContainer.vue';
+void MkStickyContainer;
diff --git a/packages/frontend/src/components/global/MkTime.stories.impl.ts b/packages/frontend/src/components/global/MkTime.stories.impl.ts
new file mode 100644
index 0000000000..b72601b1ff
--- /dev/null
+++ b/packages/frontend/src/components/global/MkTime.stories.impl.ts
@@ -0,0 +1,312 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { expect } from '@storybook/jest';
+import { StoryObj } from '@storybook/vue3';
+import MkTime from './MkTime.vue';
+import { i18n } from '@/i18n';
+import { dateTimeFormat } from '@/scripts/intl-const';
+const now = new Date('2023-04-01T00:00:00.000Z');
+const future = new Date(8640000000000000);
+const oneHourAgo = new Date(now.getTime() - 3600000);
+const oneDayAgo = new Date(now.getTime() - 86400000);
+const oneWeekAgo = new Date(now.getTime() - 604800000);
+const oneMonthAgo = new Date(now.getTime() - 2592000000);
+const oneYearAgo = new Date(now.getTime() - 31536000000);
+export const Empty = {
+	render(args) {
+		return {
+			components: {
+				MkTime,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkTime v-bind="props" />',
+		};
+	},
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.ts._ago.invalid);
+	},
+	args: {
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const RelativeFuture = {
+	...Empty,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.ts._ago.future);
+	},
+	args: {
+		...Empty.args,
+		time: future,
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const AbsoluteFuture = {
+	...Empty,
+	async play({ canvasElement, args }) {
+		await expect(canvasElement).toHaveTextContent(dateTimeFormat.format(args.time));
+	},
+	args: {
+		...Empty.args,
+		time: future,
+		mode: 'absolute',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const DetailFuture = {
+	...Empty,
+	async play(context) {
+		await AbsoluteFuture.play(context);
+		await expect(context.canvasElement).toHaveTextContent(' (');
+		await RelativeFuture.play(context);
+		await expect(context.canvasElement).toHaveTextContent(')');
+	},
+	args: {
+		...Empty.args,
+		time: future,
+		mode: 'detail',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const RelativeNow = {
+	...Empty,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.ts._ago.justNow);
+	},
+	args: {
+		...Empty.args,
+		time: now,
+		origin: now,
+		mode: 'relative',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const AbsoluteNow = {
+	...Empty,
+	async play({ canvasElement, args }) {
+		await expect(canvasElement).toHaveTextContent(dateTimeFormat.format(args.time));
+	},
+	args: {
+		...Empty.args,
+		time: now,
+		origin: now,
+		mode: 'absolute',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const DetailNow = {
+	...Empty,
+	async play(context) {
+		await AbsoluteNow.play(context);
+		await expect(context.canvasElement).toHaveTextContent(' (');
+		await RelativeNow.play(context);
+		await expect(context.canvasElement).toHaveTextContent(')');
+	},
+	args: {
+		...Empty.args,
+		time: now,
+		origin: now,
+		mode: 'detail',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const RelativeOneHourAgo = {
+	...Empty,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.t('_ago.hoursAgo', { n: 1 }));
+	},
+	args: {
+		...Empty.args,
+		time: oneHourAgo,
+		origin: now,
+		mode: 'relative',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const AbsoluteOneHourAgo = {
+	...Empty,
+	async play({ canvasElement, args }) {
+		await expect(canvasElement).toHaveTextContent(dateTimeFormat.format(args.time));
+	},
+	args: {
+		...Empty.args,
+		time: oneHourAgo,
+		origin: now,
+		mode: 'absolute',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const DetailOneHourAgo = {
+	...Empty,
+	async play(context) {
+		await AbsoluteOneHourAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(' (');
+		await RelativeOneHourAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(')');
+	},
+	args: {
+		...Empty.args,
+		time: oneHourAgo,
+		origin: now,
+		mode: 'detail',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const RelativeOneDayAgo = {
+	...Empty,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.t('_ago.daysAgo', { n: 1 }));
+	},
+	args: {
+		...Empty.args,
+		time: oneDayAgo,
+		origin: now,
+		mode: 'relative',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const AbsoluteOneDayAgo = {
+	...Empty,
+	async play({ canvasElement, args }) {
+		await expect(canvasElement).toHaveTextContent(dateTimeFormat.format(args.time));
+	},
+	args: {
+		...Empty.args,
+		time: oneDayAgo,
+		origin: now,
+		mode: 'absolute',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const DetailOneDayAgo = {
+	...Empty,
+	async play(context) {
+		await AbsoluteOneDayAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(' (');
+		await RelativeOneDayAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(')');
+	},
+	args: {
+		...Empty.args,
+		time: oneDayAgo,
+		origin: now,
+		mode: 'detail',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const RelativeOneWeekAgo = {
+	...Empty,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.t('_ago.weeksAgo', { n: 1 }));
+	},
+	args: {
+		...Empty.args,
+		time: oneWeekAgo,
+		origin: now,
+		mode: 'relative',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const AbsoluteOneWeekAgo = {
+	...Empty,
+	async play({ canvasElement, args }) {
+		await expect(canvasElement).toHaveTextContent(dateTimeFormat.format(args.time));
+	},
+	args: {
+		...Empty.args,
+		time: oneWeekAgo,
+		origin: now,
+		mode: 'absolute',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const DetailOneWeekAgo = {
+	...Empty,
+	async play(context) {
+		await AbsoluteOneWeekAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(' (');
+		await RelativeOneWeekAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(')');
+	},
+	args: {
+		...Empty.args,
+		time: oneWeekAgo,
+		origin: now,
+		mode: 'detail',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const RelativeOneMonthAgo = {
+	...Empty,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.t('_ago.monthsAgo', { n: 1 }));
+	},
+	args: {
+		...Empty.args,
+		time: oneMonthAgo,
+		origin: now,
+		mode: 'relative',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const AbsoluteOneMonthAgo = {
+	...Empty,
+	async play({ canvasElement, args }) {
+		await expect(canvasElement).toHaveTextContent(dateTimeFormat.format(args.time));
+	},
+	args: {
+		...Empty.args,
+		time: oneMonthAgo,
+		origin: now,
+		mode: 'absolute',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const DetailOneMonthAgo = {
+	...Empty,
+	async play(context) {
+		await AbsoluteOneMonthAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(' (');
+		await RelativeOneMonthAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(')');
+	},
+	args: {
+		...Empty.args,
+		time: oneMonthAgo,
+		origin: now,
+		mode: 'detail',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const RelativeOneYearAgo = {
+	...Empty,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(i18n.t('_ago.yearsAgo', { n: 1 }));
+	},
+	args: {
+		...Empty.args,
+		time: oneYearAgo,
+		origin: now,
+		mode: 'relative',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const AbsoluteOneYearAgo = {
+	...Empty,
+	async play({ canvasElement, args }) {
+		await expect(canvasElement).toHaveTextContent(dateTimeFormat.format(args.time));
+	},
+	args: {
+		...Empty.args,
+		time: oneYearAgo,
+		origin: now,
+		mode: 'absolute',
+	},
+} satisfies StoryObj<typeof MkTime>;
+export const DetailOneYearAgo = {
+	...Empty,
+	async play(context) {
+		await AbsoluteOneYearAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(' (');
+		await RelativeOneYearAgo.play(context);
+		await expect(context.canvasElement).toHaveTextContent(')');
+	},
+	args: {
+		...Empty.args,
+		time: oneYearAgo,
+		origin: now,
+		mode: 'detail',
+	},
+} satisfies StoryObj<typeof MkTime>;
diff --git a/packages/frontend/src/components/global/MkTime.vue b/packages/frontend/src/components/global/MkTime.vue
index 3fa8bb9adc..99169512db 100644
--- a/packages/frontend/src/components/global/MkTime.vue
+++ b/packages/frontend/src/components/global/MkTime.vue
@@ -14,8 +14,10 @@ import { dateTimeFormat } from '@/scripts/intl-const';
 
 const props = withDefaults(defineProps<{
 	time: Date | string | number | null;
+	origin?: Date | null;
 	mode?: 'relative' | 'absolute' | 'detail';
 }>(), {
+	origin: null,
 	mode: 'relative',
 });
 
@@ -25,7 +27,7 @@ const _time = props.time == null ? NaN :
 const invalid = Number.isNaN(_time);
 const absolute = !invalid ? dateTimeFormat.format(_time) : i18n.ts._ago.invalid;
 
-let now = $ref((new Date()).getTime());
+let now = $ref((props.origin ?? new Date()).getTime());
 const relative = $computed<string>(() => {
 	if (props.mode === 'absolute') return ''; // absoluteではrelativeを使わないので計算しない
 	if (invalid) return i18n.ts._ago.invalid;
@@ -46,7 +48,7 @@ const relative = $computed<string>(() => {
 let tickId: number;
 
 function tick() {
-	now = (new Date()).getTime();
+	now = props.origin ?? (new Date()).getTime();
 	const ago = (now - _time) / 1000/*ms*/;
 	const next = ago < 60 ? 10000 : ago < 3600 ? 60000 : 180000;
 
diff --git a/packages/frontend/src/components/global/MkUrl.stories.impl.ts b/packages/frontend/src/components/global/MkUrl.stories.impl.ts
new file mode 100644
index 0000000000..2344c4851a
--- /dev/null
+++ b/packages/frontend/src/components/global/MkUrl.stories.impl.ts
@@ -0,0 +1,77 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { expect } from '@storybook/jest';
+import { userEvent, within } from '@storybook/testing-library';
+import { StoryObj } from '@storybook/vue3';
+import { rest } from 'msw';
+import { commonHandlers } from '../../../.storybook/mocks';
+import MkUrl from './MkUrl.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkUrl,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkUrl v-bind="props">Text</MkUrl>',
+		};
+	},
+	async play({ canvasElement }) {
+		const canvas = within(canvasElement);
+		const a = canvas.getByRole<HTMLAnchorElement>('link');
+		await expect(a).toHaveAttribute('href', 'https://misskey-hub.net/');
+		await userEvent.hover(a);
+		/*
+		await tick(); // FIXME: wait for network request
+		const anchors = canvas.getAllByRole<HTMLAnchorElement>('link');
+		const popup = anchors.find(anchor => anchor !== a)!; // eslint-disable-line @typescript-eslint/no-non-null-assertion
+		await expect(popup).toBeInTheDocument();
+		await expect(popup).toHaveAttribute('href', 'https://misskey-hub.net/');
+		await expect(popup).toHaveTextContent('Misskey Hub');
+		await expect(popup).toHaveTextContent('Misskeyはオープンソースの分散型ソーシャルネットワーキングプラットフォームです。');
+		await expect(popup).toHaveTextContent('misskey-hub.net');
+		const icon = within(popup).getByRole('img');
+		await expect(icon).toBeInTheDocument();
+		await expect(icon).toHaveAttribute('src', 'https://misskey-hub.net/favicon.ico');
+		 */
+		await userEvent.unhover(a);
+	},
+	args: {
+		url: 'https://misskey-hub.net/',
+	},
+	parameters: {
+		layout: 'centered',
+		msw: {
+			handlers: [
+				...commonHandlers,
+				rest.get('/url', (req, res, ctx) => {
+					return res(ctx.json({
+						title: 'Misskey Hub',
+						icon: 'https://misskey-hub.net/favicon.ico',
+						description: 'Misskeyはオープンソースの分散型ソーシャルネットワーキングプラットフォームです。',
+						thumbnail: null,
+						player: {
+							url: null,
+							width: null,
+							height: null,
+							allow: [],
+						},
+						sitename: 'misskey-hub.net',
+						sensitive: false,
+						url: 'https://misskey-hub.net/',
+					}));
+				}),
+			],
+		},
+	},
+} satisfies StoryObj<typeof MkUrl>;
diff --git a/packages/frontend/src/components/global/MkUserName.stories.impl.ts b/packages/frontend/src/components/global/MkUserName.stories.impl.ts
new file mode 100644
index 0000000000..41b1567a6f
--- /dev/null
+++ b/packages/frontend/src/components/global/MkUserName.stories.impl.ts
@@ -0,0 +1,57 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import { expect } from '@storybook/jest';
+import { userEvent, within } from '@storybook/testing-library';
+import { StoryObj } from '@storybook/vue3';
+import { userDetailed } from '../../../.storybook/fakes';
+import MkUserName from './MkUserName.vue';
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkUserName,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkUserName v-bind="props"/>',
+		};
+	},
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(userDetailed.name);
+	},
+	args: {
+		user: userDetailed,
+	},
+	parameters: {
+		layout: 'centered',
+	},
+} satisfies StoryObj<typeof MkUserName>;
+export const Anonymous = {
+	...Default,
+	async play({ canvasElement }) {
+		await expect(canvasElement).toHaveTextContent(userDetailed.username);
+	},
+	args: {
+		...Default.args,
+		user: {
+			...userDetailed,
+			name: null,
+		},
+	},
+} satisfies StoryObj<typeof MkUserName>;
+export const Wrap = {
+	...Default,
+	args: {
+		...Default.args,
+		nowrap: false,
+	},
+} satisfies StoryObj<typeof MkUserName>;
diff --git a/packages/frontend/src/components/global/RouterView.stories.impl.ts b/packages/frontend/src/components/global/RouterView.stories.impl.ts
new file mode 100644
index 0000000000..7910b8b3cb
--- /dev/null
+++ b/packages/frontend/src/components/global/RouterView.stories.impl.ts
@@ -0,0 +1,3 @@
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+import RouterView from './RouterView.vue';
+void RouterView;
diff --git a/packages/frontend/src/index.mdx b/packages/frontend/src/index.mdx
new file mode 100644
index 0000000000..e30dea2928
--- /dev/null
+++ b/packages/frontend/src/index.mdx
@@ -0,0 +1,12 @@
+import { Meta } from '@storybook/blocks'
+
+<Meta title="index" />
+
+# Welcome to Misskey Storybook
+
+This project uses [Storybook](https://storybook.js.org/) to develop and document components.
+You can find more information about the usage of Storybook in this project in the CONTRIBUTING.md file placed in the root of this repository.
+
+The Misskey Storybook is under development and not all components are documented yet.
+Contributions are welcome! Please refer to [#10336](https://github.com/misskey-dev/misskey/issues/10336) for more information.
+Thank you for your support!
diff --git a/packages/frontend/src/pages/notifications.vue b/packages/frontend/src/pages/notifications.vue
index a5c7cdaa71..1789606cd8 100644
--- a/packages/frontend/src/pages/notifications.vue
+++ b/packages/frontend/src/pages/notifications.vue
@@ -2,8 +2,8 @@
 <MkStickyContainer>
 	<template #header><MkPageHeader v-model:tab="tab" :actions="headerActions" :tabs="headerTabs"/></template>
 	<MkSpacer :content-max="800">
-		<div v-if="tab === 'all' || tab === 'unread'">
-			<XNotifications class="notifications" :include-types="includeTypes" :unread-only="unreadOnly"/>
+		<div v-if="tab === 'all'">
+			<XNotifications class="notifications" :include-types="includeTypes"/>
 		</div>
 		<div v-else-if="tab === 'mentions'">
 			<MkNotes :pagination="mentionsPagination"/>
@@ -26,7 +26,6 @@ import { notificationTypes } from '@/const';
 
 let tab = $ref('all');
 let includeTypes = $ref<string[] | null>(null);
-let unreadOnly = $computed(() => tab === 'unread');
 
 const mentionsPagination = {
 	endpoint: 'notes/mentions' as const,
@@ -77,10 +76,6 @@ const headerTabs = $computed(() => [{
 	title: i18n.ts.all,
 	icon: 'ti ti-point',
 }, {
-	key: 'unread',
-	title: i18n.ts.unread,
-	icon: 'ti ti-loader',
-}, {
 	key: 'mentions',
 	title: i18n.ts.mentions,
 	icon: 'ti ti-at',
diff --git a/packages/frontend/src/pages/user/activity.following.vue b/packages/frontend/src/pages/user/activity.following.vue
index 54360024f3..1c7c991aac 100644
--- a/packages/frontend/src/pages/user/activity.following.vue
+++ b/packages/frontend/src/pages/user/activity.following.vue
@@ -77,7 +77,10 @@ async function renderChart() {
 			barPercentage: 0.7,
 			categoryPercentage: 0.7,
 			fill: true,
-		} satisfies ChartDataset, extra);
+		/* @see <https://github.com/misskey-dev/misskey/pull/10365#discussion_r1155511107>
+		} satisfies ChartData, extra);
+		 */
+		}, extra);
 	}
 
 	chartInstance = new Chart(chartEl, {
diff --git a/packages/frontend/src/pages/user/activity.heatmap.vue b/packages/frontend/src/pages/user/activity.heatmap.vue
index 2dcb754c9b..ada0166eda 100644
--- a/packages/frontend/src/pages/user/activity.heatmap.vue
+++ b/packages/frontend/src/pages/user/activity.heatmap.vue
@@ -113,6 +113,9 @@ async function renderChart() {
 					const a = c.chart.chartArea ?? {};
 					return (a.bottom - a.top) / 7 - marginEachCell;
 				},
+			/* @see <https://github.com/misskey-dev/misskey/pull/10365#discussion_r1155511107>
+			}] satisfies ChartData[],
+			 */
 			}],
 		},
 		options: {
diff --git a/packages/frontend/src/pages/user/activity.notes.vue b/packages/frontend/src/pages/user/activity.notes.vue
index 7dd02ad6d4..8a946aebac 100644
--- a/packages/frontend/src/pages/user/activity.notes.vue
+++ b/packages/frontend/src/pages/user/activity.notes.vue
@@ -76,7 +76,10 @@ async function renderChart() {
 			borderRadius: 4,
 			barPercentage: 0.9,
 			fill: true,
-		} satisfies ChartDataset, extra);
+		/* @see <https://github.com/misskey-dev/misskey/pull/10365#discussion_r1155511107>
+		} satisfies ChartData, extra);
+		 */
+		}, extra);
 	}
 
 	chartInstance = new Chart(chartEl, {
diff --git a/packages/frontend/src/pages/user/activity.pv.vue b/packages/frontend/src/pages/user/activity.pv.vue
index 6a7506e388..0e9c581e1e 100644
--- a/packages/frontend/src/pages/user/activity.pv.vue
+++ b/packages/frontend/src/pages/user/activity.pv.vue
@@ -77,7 +77,10 @@ async function renderChart() {
 			barPercentage: 0.7,
 			categoryPercentage: 0.7,
 			fill: true,
-		} satisfies ChartDataset, extra);
+		/* @see <https://github.com/misskey-dev/misskey/pull/10365#discussion_r1155511107>
+		} satisfies ChartData, extra);
+		 */
+		}, extra);
 	}
 
 	chartInstance = new Chart(chartEl, {
diff --git a/packages/frontend/src/scripts/achievements.ts b/packages/frontend/src/scripts/achievements.ts
index c77f8e12d3..25e8b71a12 100644
--- a/packages/frontend/src/scripts/achievements.ts
+++ b/packages/frontend/src/scripts/achievements.ts
@@ -443,11 +443,14 @@ export const ACHIEVEMENT_BADGES = {
 		bg: 'linear-gradient(0deg, rgb(144, 224, 255), rgb(255, 168, 252))',
 		frame: 'bronze',
 	},
+/* @see <https://github.com/misskey-dev/misskey/pull/10365#discussion_r1155511107>
 } as const satisfies Record<typeof ACHIEVEMENT_TYPES[number], {
 	img: string;
 	bg: string | null;
 	frame: 'bronze' | 'silver' | 'gold' | 'platinum';
 }>;
+ */
+} as const;
 
 export const claimedAchievements: typeof ACHIEVEMENT_TYPES[number][] = ($i && $i.achievements) ? $i.achievements.map(x => x.name) : [];
 
diff --git a/packages/frontend/src/scripts/test-utils.ts b/packages/frontend/src/scripts/test-utils.ts
new file mode 100644
index 0000000000..3e018f2d7e
--- /dev/null
+++ b/packages/frontend/src/scripts/test-utils.ts
@@ -0,0 +1,6 @@
+/// <reference types="@testing-library/jest-dom"/>
+
+export async function tick(): Promise<void> {
+	// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+	await new Promise((globalThis.requestIdleCallback ?? setTimeout) as never);
+}
diff --git a/packages/frontend/src/ui/_common_/common.vue b/packages/frontend/src/ui/_common_/common.vue
index e1561cb396..5a32c076a4 100644
--- a/packages/frontend/src/ui/_common_/common.vue
+++ b/packages/frontend/src/ui/_common_/common.vue
@@ -53,9 +53,7 @@ function onNotification(notification) {
 	if ($i.mutingNotificationTypes.includes(notification.type)) return;
 
 	if (document.visibilityState === 'visible') {
-		stream.send('readNotification', {
-			id: notification.id,
-		});
+		stream.send('readNotification');
 
 		notifications.unshift(notification);
 		window.setTimeout(() => {