diff --git a/CHANGELOG.md b/CHANGELOG.md
index 768c77ad89..37e3954cd2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,11 +4,14 @@
 -
 
 ### Client
+- Enhance: PC画面でチャンネルが複数列で表示されるように  
+  (Cherry-picked from https://github.com/Otaku-Social/maniakey/pull/13)
 - Fix: 画面サイズが変わった際にナビゲーションバーが自動で折りたたまれない問題を修正
 - Fix: サーバー情報メニューに区切り線が不足していたのを修正
 - Fix: ノートがログインしているユーザーしか見れない場合にログインダイアログを閉じるとその後の動線がなくなる問題を修正
 - Fix: 公開範囲がホームのノートの埋め込みウィジェットが読み込まれない問題を修正  
   (Cherry-picked from https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/803)
+- Fix: 絵文字管理画面で一部の絵文字が表示されない問題を修正
 - Fix: Botプロテクションの設定変更時は実際に検証を通過しないと保存できないように( #15137 )
 
 ### Server
diff --git a/packages/frontend/src/components/MkChannelPreview.vue b/packages/frontend/src/components/MkChannelPreview.vue
index c470042b79..f79989d882 100644
--- a/packages/frontend/src/components/MkChannelPreview.vue
+++ b/packages/frontend/src/components/MkChannelPreview.vue
@@ -125,7 +125,9 @@ const bannerStyle = computed(() => {
 			position: absolute;
 			top: 16px;
 			left: 16px;
+			max-width: calc(100% - 32px);
 			padding: 12px 16px;
+			box-sizing: border-box;
 			background: rgba(0, 0, 0, 0.7);
 			color: #fff;
 			font-size: 1.2em;
diff --git a/packages/frontend/src/pages/channels.vue b/packages/frontend/src/pages/channels.vue
index bde1650754..6830c1ace4 100644
--- a/packages/frontend/src/pages/channels.vue
+++ b/packages/frontend/src/pages/channels.vue
@@ -6,9 +6,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 <template>
 <MkStickyContainer>
 	<template #header><MkPageHeader v-model:tab="tab" :actions="headerActions" :tabs="headerTabs"/></template>
-	<MkSpacer :contentMax="700">
+	<MkSpacer :contentMax="1200">
 		<MkHorizontalSwipe v-model:tab="tab" :tabs="headerTabs">
-			<div v-if="tab === 'search'" key="search">
+			<div v-if="tab === 'search'" key="search" :class="$style.searchRoot">
 				<div class="_gaps">
 					<MkInput v-model="searchQuery" :large="true" :autofocus="true" type="search" @enter="search">
 						<template #prefix><i class="ti ti-search"></i></template>
@@ -27,23 +27,31 @@ SPDX-License-Identifier: AGPL-3.0-only
 			</div>
 			<div v-if="tab === 'featured'" key="featured">
 				<MkPagination v-slot="{items}" :pagination="featuredPagination">
-					<MkChannelPreview v-for="channel in items" :key="channel.id" class="_margin" :channel="channel"/>
+					<div :class="$style.root">
+						<MkChannelPreview v-for="channel in items" :key="channel.id" :channel="channel"/>
+					</div>
 				</MkPagination>
 			</div>
 			<div v-else-if="tab === 'favorites'" key="favorites">
 				<MkPagination v-slot="{items}" :pagination="favoritesPagination">
-					<MkChannelPreview v-for="channel in items" :key="channel.id" class="_margin" :channel="channel"/>
+					<div :class="$style.root">
+						<MkChannelPreview v-for="channel in items" :key="channel.id" :channel="channel"/>
+					</div>
 				</MkPagination>
 			</div>
 			<div v-else-if="tab === 'following'" key="following">
 				<MkPagination v-slot="{items}" :pagination="followingPagination">
-					<MkChannelPreview v-for="channel in items" :key="channel.id" class="_margin" :channel="channel"/>
+					<div :class="$style.root">
+						<MkChannelPreview v-for="channel in items" :key="channel.id" :channel="channel"/>
+					</div>
 				</MkPagination>
 			</div>
 			<div v-else-if="tab === 'owned'" key="owned">
 				<MkButton class="new" @click="create()"><i class="ti ti-plus"></i></MkButton>
 				<MkPagination v-slot="{items}" :pagination="ownedPagination">
-					<MkChannelPreview v-for="channel in items" :key="channel.id" class="_margin" :channel="channel"/>
+					<div :class="$style.root">
+						<MkChannelPreview v-for="channel in items" :key="channel.id" :channel="channel"/>
+					</div>
 				</MkPagination>
 			</div>
 		</MkHorizontalSwipe>
@@ -85,6 +93,7 @@ onMounted(() => {
 
 const featuredPagination = {
 	endpoint: 'channels/featured' as const,
+	limit: 10,
 	noPaging: true,
 };
 const favoritesPagination = {
@@ -157,3 +166,17 @@ definePageMetadata(() => ({
 	icon: 'ti ti-device-tv',
 }));
 </script>
+
+<style lang="scss" module>
+.searchRoot {
+	width: 100%;
+	max-width: 700px;
+	margin: 0 auto;
+}
+
+.root {
+	display: grid;
+	grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
+	gap: var(--MI-margin);
+}
+</style>
diff --git a/packages/frontend/src/pages/clip.vue b/packages/frontend/src/pages/clip.vue
index 891d59d605..c925bac4d9 100644
--- a/packages/frontend/src/pages/clip.vue
+++ b/packages/frontend/src/pages/clip.vue
@@ -46,9 +46,10 @@ import { clipsCache } from '@/cache.js';
 import { isSupportShare } from '@/scripts/navigator.js';
 import { copyToClipboard } from '@/scripts/copy-to-clipboard.js';
 import { genEmbedCode } from '@/scripts/get-embed-code.js';
-import { getServerContext } from '@/server-context.js';
+import { assertServerContext, serverContext } from '@/server-context.js';
 
-const CTX_CLIP = getServerContext('clip');
+// contextは非ログイン状態の情報しかないためログイン時は利用できない
+const CTX_CLIP = $i && assertServerContext(serverContext, 'clip') ? serverContext.clip : null;
 
 const props = defineProps<{
 	clipId: string,
diff --git a/packages/frontend/src/pages/custom-emojis-manager.vue b/packages/frontend/src/pages/custom-emojis-manager.vue
index cae3f3ede9..789a63eb90 100644
--- a/packages/frontend/src/pages/custom-emojis-manager.vue
+++ b/packages/frontend/src/pages/custom-emojis-manager.vue
@@ -31,7 +31,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<template #default="{items}">
 							<div class="ldhfsamy">
 								<button v-for="emoji in items" :key="emoji.id" class="emoji _panel _button" :class="{ selected: selectedEmojis.includes(emoji.id) }" @click="selectMode ? toggleSelect(emoji) : edit(emoji)">
-									<img :src="`/emoji/${emoji.name}.webp`" class="img" :alt="emoji.name"/>
+									<img :src="emoji.url" class="img" :alt="emoji.name"/>
 									<div class="body">
 										<div class="name _monospace">{{ emoji.name }}</div>
 										<div class="info">{{ emoji.category }}</div>
@@ -57,7 +57,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<template #default="{items}">
 							<div class="ldhfsamy">
 								<div v-for="emoji in items" :key="emoji.id" class="emoji _panel _button" @click="remoteMenu(emoji, $event)">
-									<img :src="`/emoji/${emoji.name}@${emoji.host}.webp`" class="img" :alt="emoji.name"/>
+									<img :src="getProxiedImageUrl(emoji.url, 'emoji')" class="img" :alt="emoji.name"/>
 									<div class="body">
 										<div class="name _monospace">{{ emoji.name }}</div>
 										<div class="info">{{ emoji.host }}</div>
@@ -83,6 +83,7 @@ import FormSplit from '@/components/form/split.vue';
 import { selectFile } from '@/scripts/select-file.js';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
+import { getProxiedImageUrl } from '@/scripts/media-proxy.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
diff --git a/packages/frontend/src/pages/emoji-edit-dialog.vue b/packages/frontend/src/pages/emoji-edit-dialog.vue
index 3765319b25..da3315cff5 100644
--- a/packages/frontend/src/pages/emoji-edit-dialog.vue
+++ b/packages/frontend/src/pages/emoji-edit-dialog.vue
@@ -118,7 +118,7 @@ watch(roleIdsThatCanBeUsedThisEmojiAsReaction, async () => {
 	rolesThatCanBeUsedThisEmojiAsReaction.value = (await Promise.all(roleIdsThatCanBeUsedThisEmojiAsReaction.value.map((id) => misskeyApi('admin/roles/show', { roleId: id }).catch(() => null)))).filter(x => x != null);
 }, { immediate: true });
 
-const imgUrl = computed(() => file.value ? file.value.url : props.emoji ? `/emoji/${props.emoji.name}.webp` : null);
+const imgUrl = computed(() => file.value ? file.value.url : props.emoji ? props.emoji.url : null);
 
 async function changeImage(ev: Event) {
 	file.value = await selectFile(ev.currentTarget ?? ev.target, null);
diff --git a/packages/frontend/src/pages/note.vue b/packages/frontend/src/pages/note.vue
index 5cf8f56776..6eca04db8d 100644
--- a/packages/frontend/src/pages/note.vue
+++ b/packages/frontend/src/pages/note.vue
@@ -63,9 +63,11 @@ import { dateString } from '@/filters/date.js';
 import MkClipPreview from '@/components/MkClipPreview.vue';
 import { defaultStore } from '@/store.js';
 import { pleaseLogin } from '@/scripts/please-login.js';
-import { getServerContext } from '@/server-context.js';
+import { serverContext, assertServerContext } from '@/server-context.js';
+import { $i } from '@/account.js';
 
-const CTX_NOTE = getServerContext('note');
+// contextは非ログイン状態の情報しかないためログイン時は利用できない
+const CTX_NOTE = $i && assertServerContext(serverContext, 'note') ? serverContext.note : null;
 
 const props = defineProps<{
 	noteId: string;
diff --git a/packages/frontend/src/pages/user/index.vue b/packages/frontend/src/pages/user/index.vue
index d862387401..c5cda79935 100644
--- a/packages/frontend/src/pages/user/index.vue
+++ b/packages/frontend/src/pages/user/index.vue
@@ -39,7 +39,7 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { i18n } from '@/i18n.js';
 import { $i } from '@/account.js';
 import MkHorizontalSwipe from '@/components/MkHorizontalSwipe.vue';
-import { getServerContext } from '@/server-context.js';
+import { serverContext, assertServerContext } from '@/server-context.js';
 
 const XHome = defineAsyncComponent(() => import('./home.vue'));
 const XTimeline = defineAsyncComponent(() => import('./index.timeline.vue'));
@@ -53,7 +53,8 @@ const XFlashs = defineAsyncComponent(() => import('./flashs.vue'));
 const XGallery = defineAsyncComponent(() => import('./gallery.vue'));
 const XRaw = defineAsyncComponent(() => import('./raw.vue'));
 
-const CTX_USER = getServerContext('user');
+// contextは非ログイン状態の情報しかないためログイン時は利用できない
+const CTX_USER = $i && assertServerContext(serverContext, 'user') ? serverContext.user : null;
 
 const props = withDefaults(defineProps<{
 	acct: string;
diff --git a/packages/frontend/src/server-context.ts b/packages/frontend/src/server-context.ts
index aa44a10290..e79d3fa314 100644
--- a/packages/frontend/src/server-context.ts
+++ b/packages/frontend/src/server-context.ts
@@ -2,22 +2,20 @@
  * SPDX-FileCopyrightText: syuilo and misskey-project
  * SPDX-License-Identifier: AGPL-3.0-only
  */
+
 import * as Misskey from 'misskey-js';
-import { $i } from '@/account.js';
 
 const providedContextEl = document.getElementById('misskey_clientCtx');
 
 export type ServerContext = {
 	clip?: Misskey.entities.Clip;
 	note?: Misskey.entities.Note;
-	user?: Misskey.entities.UserLite;
+	user?: Misskey.entities.UserDetailed;
 } | null;
 
 export const serverContext: ServerContext = (providedContextEl && providedContextEl.textContent) ? JSON.parse(providedContextEl.textContent) : null;
 
-export function getServerContext<K extends keyof NonNullable<ServerContext>>(entity: K): Required<Pick<NonNullable<ServerContext>, K>> | null {
-	// contextは非ログイン状態の情報しかないためログイン時は利用できない
-	if ($i) return null;
-
-	return serverContext ? (serverContext[entity] ?? null) : null;
+export function assertServerContext<K extends keyof NonNullable<ServerContext>>(ctx: ServerContext, entity: K): ctx is Required<Pick<NonNullable<ServerContext>, K>> {
+	if (ctx == null) return false;
+	return entity in ctx && ctx[entity] != null;
 }
diff --git a/packages/misskey-js/src/api.ts b/packages/misskey-js/src/api.ts
index ed1282957f..e663d712a7 100644
--- a/packages/misskey-js/src/api.ts
+++ b/packages/misskey-js/src/api.ts
@@ -44,7 +44,7 @@ export class APIClient {
 		credential?: APIClient['credential'];
 		fetch?: APIClient['fetch'] | null | undefined;
 	}) {
-		this.origin = opts.origin;
+		this.origin = opts.origin.replace(/\/$/, '');
 		this.credential = opts.credential;
 		// ネイティブ関数をそのまま変数に代入して使おうとするとChromiumではIllegal invocationエラーが発生するため、
 		// 環境で実装されているfetchを使う場合は無名関数でラップして使用する