diff --git a/packages/backend/src/server/api/stream/channels/chat.ts b/packages/backend/src/server/api/stream/channels/chat.ts
index 3701927275..ac5d7c73b3 100644
--- a/packages/backend/src/server/api/stream/channels/chat.ts
+++ b/packages/backend/src/server/api/stream/channels/chat.ts
@@ -7,6 +7,7 @@ import { Injectable } from '@nestjs/common';
 import { bindThis } from '@/decorators.js';
 import type { GlobalEvents } from '@/core/GlobalEventService.js';
 import type { JsonObject } from '@/misc/json-value.js';
+import { ChatService } from '@/core/ChatService.js';
 import Channel, { type MiChannelService } from '../channel.js';
 
 class ChatChannel extends Channel {
@@ -17,6 +18,8 @@ class ChatChannel extends Channel {
 	private otherId: string;
 
 	constructor(
+		private chatService: ChatService,
+
 		id: string,
 		connection: Channel['connection'],
 	) {
@@ -36,6 +39,17 @@ class ChatChannel extends Channel {
 		this.send(data.type, data.body);
 	}
 
+	@bindThis
+	public onMessage(type: string, body: any) {
+		switch (type) {
+			case 'read':
+				if (this.otherId) {
+					this.chatService.readUserChatMessage(this.user!.id, this.otherId);
+				}
+				break;
+		}
+	}
+
 	@bindThis
 	public dispose() {
 		// Unsubscribe events
@@ -50,12 +64,14 @@ export class ChatChannelService implements MiChannelService<true> {
 	public readonly kind = ChatChannel.kind;
 
 	constructor(
+		private chatService: ChatService,
 	) {
 	}
 
 	@bindThis
 	public create(id: string, connection: Channel['connection']): ChatChannel {
 		return new ChatChannel(
+			this.chatService,
 			id,
 			connection,
 		);
diff --git a/packages/frontend-shared/js/scroll.ts b/packages/frontend-shared/js/scroll.ts
index 508864b12c..6c61c582e1 100644
--- a/packages/frontend-shared/js/scroll.ts
+++ b/packages/frontend-shared/js/scroll.ts
@@ -38,7 +38,7 @@ export function getScrollPosition(el: HTMLElement | null): number {
 
 export function onScrollTop(el: HTMLElement, cb: (topVisible: boolean) => unknown, tolerance = 1, once = false) {
 	// とりあえず評価してみる
-	const firstTopVisible = isTopVisible(el);
+	const firstTopVisible = isHeadVisible(el);
 	if (el.isConnected && firstTopVisible) {
 		cb(firstTopVisible);
 		if (once) return null;
@@ -53,7 +53,7 @@ export function onScrollTop(el: HTMLElement, cb: (topVisible: boolean) => unknow
 	const onScroll = () => {
 		if (!document.body.contains(el)) return;
 
-		const topVisible = isTopVisible(el, tolerance);
+		const topVisible = isHeadVisible(el, tolerance);
 		if (topVisible !== prevTopVisible) {
 			prevTopVisible = topVisible;
 			cb(topVisible);
@@ -71,7 +71,7 @@ export function onScrollBottom(el: HTMLElement, cb: () => unknown, tolerance = 1
 	const container = getScrollContainer(el);
 
 	// とりあえず評価してみる
-	if (el.isConnected && isBottomVisible(el, tolerance, container)) {
+	if (el.isConnected && isTailVisible(el, tolerance, container)) {
 		cb();
 		if (once) return null;
 	}
@@ -79,7 +79,7 @@ export function onScrollBottom(el: HTMLElement, cb: () => unknown, tolerance = 1
 	const containerOrWindow = container ?? window;
 	const onScroll = () => {
 		if (!document.body.contains(el)) return;
-		if (isBottomVisible(el, 1, container)) {
+		if (isTailVisible(el, 1, container)) {
 			cb();
 			if (once) removeListener();
 		}
@@ -132,12 +132,12 @@ export function scrollToBottom(
 	}
 }
 
-export function isTopVisible(el: HTMLElement, tolerance = 1): boolean {
+export function isHeadVisible(el: HTMLElement, tolerance = 1): boolean {
 	const scrollTop = getScrollPosition(el);
 	return scrollTop <= tolerance;
 }
 
-export function isBottomVisible(el: HTMLElement, tolerance = 1, container = getScrollContainer(el)) {
+export function isTailVisible(el: HTMLElement, tolerance = 1, container = getScrollContainer(el)) {
 	if (container) return el.scrollHeight <= container.clientHeight + Math.abs(container.scrollTop) + tolerance;
 	return el.scrollHeight <= window.innerHeight + window.scrollY + tolerance;
 }
diff --git a/packages/frontend/src/components/MkDateSeparatedList.vue b/packages/frontend/src/components/MkDateSeparatedList.vue
index b5842876ac..ec6fcdc311 100644
--- a/packages/frontend/src/components/MkDateSeparatedList.vue
+++ b/packages/frontend/src/components/MkDateSeparatedList.vue
@@ -168,21 +168,17 @@ export default defineComponent({
 	container-type: inline-size;
 
 	&:global {
-	> .list-move {
-		transition: transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
-	}
+		> .list-move {
+			transition: transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
+		}
 
-	&.deny-move-transition > .list-move {
-		transition: none !important;
-	}
+		> .list-enter-active {
+			transition: transform 0.7s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1);
+		}
 
-	> .list-enter-active {
-		transition: transform 0.7s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1);
-	}
-
-	> *:empty {
-		display: none;
-	}
+		> *:empty {
+			display: none;
+		}
 	}
 
 	&:not(.date-separated-list-nogap) > *:not(:last-child) {
diff --git a/packages/frontend/src/components/MkPagination.vue b/packages/frontend/src/components/MkPagination.vue
index ab8bda403b..a2a0ca40c0 100644
--- a/packages/frontend/src/components/MkPagination.vue
+++ b/packages/frontend/src/components/MkPagination.vue
@@ -46,7 +46,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { computed, isRef, nextTick, onActivated, onBeforeMount, onBeforeUnmount, onDeactivated, ref, useTemplateRef, watch } from 'vue';
 import * as Misskey from 'misskey-js';
 import { useDocumentVisibility } from '@@/js/use-document-visibility.js';
-import { onScrollTop, isTopVisible, getBodyScrollHeight, getScrollContainer, onScrollBottom, scrollToBottom, scroll, isBottomVisible } from '@@/js/scroll.js';
+import { onScrollTop, isHeadVisible, getBodyScrollHeight, getScrollContainer, onScrollBottom, scrollToBottom, scroll, isTailVisible } from '@@/js/scroll.js';
 import type { ComputedRef } from 'vue';
 import type { MisskeyEntity } from '@/types/date-separated-list.js';
 import { misskeyApi } from '@/utility/misskey-api.js';
@@ -97,6 +97,7 @@ const props = withDefaults(defineProps<{
 	pagination: Paging;
 	disableAutoLoad?: boolean;
 	displayLimit?: number;
+	scrollReversed?: boolean;
 }>(), {
 	displayLimit: 20,
 });
@@ -349,7 +350,7 @@ const appearFetchMoreAhead = async (): Promise<void> => {
 	fetchMoreAppearTimeout();
 };
 
-const isTop = (): boolean => isBackTop.value || (props.pagination.reversed ? isBottomVisible : isTopVisible)(contentEl.value!, TOLERANCE);
+const isHead = (): boolean => isBackTop.value || (props.pagination.reversed && !props.scrollReversed ? isTailVisible : isHeadVisible)(contentEl.value!, TOLERANCE);
 
 watch(visibility, () => {
 	if (visibility.value === 'hidden') {
@@ -364,7 +365,7 @@ watch(visibility, () => {
 			timerForSetPause = null;
 		} else {
 			isPausingUpdate = false;
-			if (isTop()) {
+			if (isHead()) {
 				executeQueue();
 			}
 		}
@@ -376,16 +377,18 @@ watch(visibility, () => {
  * ストリーミングから降ってきたアイテムはこれで追加する
  * @param item アイテム
  */
-const prepend = (item: MisskeyEntity): void => {
+function prepend(item: MisskeyEntity): void {
 	if (items.value.size === 0) {
 		items.value.set(item.id, item);
 		fetching.value = false;
 		return;
 	}
 
-	if (isTop() && !isPausingUpdate) unshiftItems([item]);
+	console.log(isHead(), isPausingUpdate);
+
+	if (isHead() && !isPausingUpdate) unshiftItems([item]);
 	else prependQueue(item);
-};
+}
 
 /**
  * 新着アイテムをitemsの先頭に追加し、displayLimitを適用する
diff --git a/packages/frontend/src/pages/chat/home.vue b/packages/frontend/src/pages/chat/home.vue
index ab7b549956..ffb9511a88 100644
--- a/packages/frontend/src/pages/chat/home.vue
+++ b/packages/frontend/src/pages/chat/home.vue
@@ -4,8 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<MkStickyContainer>
-	<template #header><MkPageHeader :actions="headerActions" :tabs="headerTabs"/></template>
+<PageWithHeader :actions="headerActions" :tabs="headerTabs">
 	<MkSpacer :contentMax="800">
 		<div class="_gaps">
 			<MkButton primary :class="$style.start" @click="start"><i class="ti ti-plus"></i> {{ i18n.ts.startChat }}</MkButton>
@@ -39,7 +38,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<MkLoading v-if="fetching"/>
 		</div>
 	</MkSpacer>
-</MkStickyContainer>
+</PageWithHeader>
 </template>
 
 <script lang="ts" setup>
diff --git a/packages/frontend/src/pages/chat/room.form.vue b/packages/frontend/src/pages/chat/room.form.vue
index 7132924125..8cef407fea 100644
--- a/packages/frontend/src/pages/chat/room.form.vue
+++ b/packages/frontend/src/pages/chat/room.form.vue
@@ -233,6 +233,10 @@ onMounted(() => {
 <style lang="scss" module>
 .root {
 	position: relative;
+	border: solid 1px var(--MI_THEME-divider);
+	border-bottom: none;
+	border-radius: 14px 14px 0 0;
+	overflow: clip;
 }
 
 .textarea {
@@ -252,13 +256,13 @@ onMounted(() => {
 	border-radius: 0;
 	box-shadow: none;
 	box-sizing: border-box;
-	color: var(--fg);
+	color: var(--MI_THEME-fg);
 }
 
 .footer {
 	position: sticky;
 	bottom: 0;
-	background: var(--panel);
+	background: var(--MI_THEME-panel);
 }
 
 .file {
diff --git a/packages/frontend/src/pages/chat/room.message.vue b/packages/frontend/src/pages/chat/room.message.vue
index 29742715d3..0fde2940e7 100644
--- a/packages/frontend/src/pages/chat/room.message.vue
+++ b/packages/frontend/src/pages/chat/room.message.vue
@@ -1,6 +1,6 @@
 <template>
 <div :class="[$style.root, { [$style.isMe]: isMe }]">
-	<MkAvatar :class="$style.avatar" :user="user" indicator link preview/>
+	<MkAvatar :class="$style.avatar" :user="user" link/>
 	<div :class="$style.body">
 		<MkFukidashi :class="$style.fukidashi" :tail="isMe ? 'right' : 'left'" :accented="isMe">
 			<div v-if="!message.isDeleted" :class="$style.content">
@@ -113,6 +113,6 @@ function del(): void {
 
 .time {
 	font-size: 75%;
-	opacity: 0.7;
+	opacity: 0.5;
 }
 </style>
diff --git a/packages/frontend/src/pages/chat/room.vue b/packages/frontend/src/pages/chat/room.vue
index 638650c988..010573c26d 100644
--- a/packages/frontend/src/pages/chat/room.vue
+++ b/packages/frontend/src/pages/chat/room.vue
@@ -12,30 +12,30 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 		<div ref="rootEl" :class="$style.root">
 			<MkSpacer :contentMax="700">
-				<MkPagination v-if="pagination" ref="pagingComponent" :key="userId || roomId" :pagination="pagination" :disableAutoLoad="true">
+				<MkPagination v-if="pagination" ref="pagingComponent" :key="userId || roomId" :pagination="pagination" :disableAutoLoad="true" :scrollReversed="true">
 					<template #empty>
 						<div class="_fullinfo">
 							<div>{{ i18n.ts.noMessagesYet }}</div>
 						</div>
 					</template>
-					<template #default="{ items: messages, fetching: pFetching }">
-						<MkDateSeparatedList
-							v-if="messages.length > 0"
-							v-slot="{ item: message }"
-							:class="{ [$style['messages']]: true, 'deny-move-transition': pFetching }"
-							:items="messages"
-							direction="up"
-							reversed
+					<template #default="{ items: messages }">
+						<TransitionGroup
+							:enterActiveClass="prefer.s.animation ? $style.transition_x_enterActive : ''"
+							:leaveActiveClass="prefer.s.animation ? $style.transition_x_leaveActive : ''"
+							:enterFromClass="prefer.s.animation ? $style.transition_x_enterFrom : ''"
+							:leaveToClass="prefer.s.animation ? $style.transition_x_leaveTo : ''"
+							:moveClass="prefer.s.animation ? $style.transition_x_move : ''"
+							tag="div" class="_gaps"
 						>
-							<XMessage :key="message.id" :message="message" :user="message.fromUserId === $i.id ? $i : user" :isRoom="room != null"/>
-						</MkDateSeparatedList>
+							<XMessage v-for="message in messages.toReversed()" :key="message.id" :message="message" :user="message.fromUserId === $i.id ? $i : user" :isRoom="room != null"/>
+						</TransitionGroup>
 					</template>
 				</MkPagination>
 			</MkSpacer>
 		</div>
 
 		<template #footer>
-			<MkSpacer :contentMax="700">
+			<div :class="$style.footer">
 				<div class="_gaps">
 					<Transition name="fade">
 						<div v-show="showIndicator" :class="$style.new">
@@ -46,16 +46,16 @@ SPDX-License-Identifier: AGPL-3.0-only
 					</Transition>
 					<XForm v-if="!fetching" :user="user" :room="room" :class="$style.form"/>
 				</div>
-			</MkSpacer>
+			</div>
 		</template>
 	</MkStickyContainer>
 </div>
 </template>
 
 <script lang="ts" setup>
-import { ref, shallowRef, computed, watch, onMounted, nextTick, onBeforeUnmount } from 'vue';
+import { ref, useTemplateRef, computed, watch, onMounted, nextTick, onBeforeUnmount } from 'vue';
 import * as Misskey from 'misskey-js';
-import { isBottomVisible } from '@@/js/scroll.js';
+import { isTailVisible } from '@@/js/scroll.js';
 import XMessage from './room.message.vue';
 import XForm from './room.form.vue';
 import type { Paging } from '@/components/MkPagination.vue';
@@ -68,6 +68,7 @@ import { i18n } from '@/i18n.js';
 import { ensureSignin } from '@/i.js';
 import { misskeyApi } from '@/utility/misskey-api.js';
 import { definePage } from '@/page.js';
+import { prefer } from '@/preferences.js';
 
 const $i = ensureSignin();
 
@@ -76,8 +77,8 @@ const props = defineProps<{
 	roomId?: string;
 }>();
 
-const rootEl = shallowRef<HTMLDivElement>();
-const pagingComponent = shallowRef<InstanceType<typeof MkPagination>>();
+const rootEl = useTemplateRef('rootEl');
+const pagingComponent = useTemplateRef('pagingComponent');
 
 const fetching = ref(true);
 const user = ref<Misskey.entities.UserDetailed | null>(null);
@@ -109,7 +110,7 @@ async function fetch() {
 			pageEl: rootEl.value,
 		};
 		connection.value = useStream().useChannel('chat', {
-			other: user.value.id,
+			otherId: user.value.id,
 		});
 	}/* else {
 		user = null;
@@ -140,15 +141,16 @@ async function fetch() {
 function onMessage(message) {
 	//sound.play('chat');
 
-	const _isBottom = isBottomVisible(rootEl, 64);
+	//const _isBottom = isBottomVisible(rootEl, 64);
 
 	pagingComponent.value.prepend(message);
-	if (message.userId !== $i.id && !document.hidden) {
+	if (message.userId !== $i.id && !window.document.hidden) {
 		connection.value?.send('read', {
 			id: message.id,
 		});
 	}
 
+	/*
 	if (_isBottom) {
 		// Scroll to bottom
 		nextTick(() => {
@@ -157,7 +159,7 @@ function onMessage(message) {
 	} else if (message.userId !== $i.id) {
 		// Notify
 		notifyNewMessage();
-	}
+	}*/
 }
 
 function onDeleted(id) {
@@ -215,8 +217,22 @@ definePage(computed(() => !fetching.value ? user.value ? {
 </script>
 
 <style lang="scss" module>
+.transition_x_move,
+.transition_x_enterActive,
+.transition_x_leaveActive {
+	transition: opacity 0.2s cubic-bezier(0,.5,.5,1), transform 0.2s cubic-bezier(0,.5,.5,1) !important;
+}
+.transition_x_enterFrom,
+.transition_x_leaveTo {
+	opacity: 0;
+	transform: translateY(80px);
+}
+.transition_x_leaveActive {
+	position: absolute;
+}
+
 .root {
-	display: content;
+	min-height: 100cqh;
 }
 
 .more {
@@ -241,10 +257,6 @@ definePage(computed(() => !fetching.value ? user.value ? {
 	cursor: wait;
 }
 
-.messages {
-	padding: 16px 0 0;
-}
-
 .footer {
 	width: 100%;
 	position: sticky;
@@ -273,12 +285,14 @@ definePage(computed(() => !fetching.value ? user.value ? {
 	margin-right: 8px;
 }
 
+.footer {
+
+}
+
 .form {
-	max-height: 12em;
-	overflow-y: scroll;
-	border-top: solid 0.5px var(--divider);
-	border-bottom-left-radius: 0;
-	border-bottom-right-radius: 0;
+	margin: 0 auto;
+	width: 100%;
+	max-width: 700px;
 }
 
 .fade-enter-active, .fade-leave-active {
diff --git a/packages/frontend/src/preferences/def.ts b/packages/frontend/src/preferences/def.ts
index faa73b0a4c..0e950424da 100644
--- a/packages/frontend/src/preferences/def.ts
+++ b/packages/frontend/src/preferences/def.ts
@@ -136,6 +136,7 @@ export const PREF_DEF = {
 			'clips',
 			'drive',
 			'followRequests',
+			'chat',
 			'-',
 			'explore',
 			'announcements',