diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 0e338c091e..e7d17ed919 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -786,7 +786,6 @@ thisIsExperimentalFeature: "これは実験的な機能です。仕様が変更
 developer: "開発者"
 makeExplorable: "アカウントを見つけやすくする"
 makeExplorableDescription: "オフにすると、「みつける」にアカウントが載らなくなります。"
-showGapBetweenNotesInTimeline: "タイムラインのノートを離して表示"
 duplicate: "複製"
 left: "左"
 center: "中央"
diff --git a/packages/frontend/src/components/MkStreamingNotesTimeline.vue b/packages/frontend/src/components/MkStreamingNotesTimeline.vue
index 41a31a3f5c..f8b7f3b2fd 100644
--- a/packages/frontend/src/components/MkStreamingNotesTimeline.vue
+++ b/packages/frontend/src/components/MkStreamingNotesTimeline.vue
@@ -26,7 +26,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		</div>
 		<component
 			:is="prefer.s.animation ? TransitionGroup : 'div'"
-			:class="[$style.notes, { [$style.noGap]: noGap, '_gaps': !noGap }]"
+			:class="$style.notes"
 			:enterActiveClass="$style.transition_x_enterActive"
 			:leaveActiveClass="$style.transition_x_leaveActive"
 			:enterFromClass="$style.transition_x_enterFrom"
@@ -35,7 +35,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			tag="div"
 		>
 			<template v-for="(note, i) in paginator.items.value" :key="note.id">
-				<div v-if="note._shouldInsertAd_" :class="[$style.noteWithAd, { '_gaps': !noGap }]" :data-scroll-anchor="note.id">
+				<div v-if="note._shouldInsertAd_" :data-scroll-anchor="note.id">
 					<MkNote :class="$style.note" :note="note" :withHardMute="true"/>
 					<div :class="$style.ad">
 						<MkAd :preferForms="['horizontal', 'horizontal-big']"/>
@@ -193,7 +193,6 @@ function prepend(note: Misskey.entities.Note) {
 let connection: Misskey.ChannelConnection | null = null;
 let connection2: Misskey.ChannelConnection | null = null;
 let paginationQuery: PagingCtx;
-const noGap = !prefer.s.showGapBetweenNotesInTimeline;
 
 const stream = store.s.realtimeMode ? useStream() : null;
 
@@ -414,29 +413,17 @@ defineExpose({
 
 .notes {
 	container-type: inline-size;
+	background: var(--MI_THEME-panel);
 
-	&.noGap {
-		background: var(--MI_THEME-panel);
-
-		.note:not(:last-child) {
-			border-bottom: solid 0.5px var(--MI_THEME-divider);
-		}
-
-		.ad {
-			padding: 8px;
-			background-size: auto auto;
-			background-image: repeating-linear-gradient(45deg, transparent, transparent 8px, var(--MI_THEME-bg) 8px, var(--MI_THEME-bg) 14px);
-			border-bottom: solid 0.5px var(--MI_THEME-divider);
-		}
+	.note:not(:last-child) {
+		border-bottom: solid 0.5px var(--MI_THEME-divider);
 	}
 
-	&:not(.noGap) {
-		background: var(--MI_THEME-bg);
-
-		.note {
-			background: var(--MI_THEME-panel);
-			border-radius: var(--MI-radius);
-		}
+	.ad {
+		padding: 8px;
+		background-size: auto auto;
+		background-image: repeating-linear-gradient(45deg, transparent, transparent 8px, var(--MI_THEME-bg) 8px, var(--MI_THEME-bg) 14px);
+		border-bottom: solid 0.5px var(--MI_THEME-divider);
 	}
 }
 
diff --git a/packages/frontend/src/pages/settings/preferences.vue b/packages/frontend/src/pages/settings/preferences.vue
index f22b3b84d9..c6732e7787 100644
--- a/packages/frontend/src/pages/settings/preferences.vue
+++ b/packages/frontend/src/pages/settings/preferences.vue
@@ -168,14 +168,6 @@ SPDX-License-Identifier: AGPL-3.0-only
 								</MkPreferenceContainer>
 							</SearchMarker>
 
-							<SearchMarker :keywords="['note', 'timeline', 'gap']">
-								<MkPreferenceContainer k="showGapBetweenNotesInTimeline">
-									<MkSwitch v-model="showGapBetweenNotesInTimeline">
-										<template #label><SearchLabel>{{ i18n.ts.showGapBetweenNotesInTimeline }}</SearchLabel></template>
-									</MkSwitch>
-								</MkPreferenceContainer>
-							</SearchMarker>
-
 							<SearchMarker :keywords="['pinned', 'list']">
 								<MkFolder>
 									<template #label><SearchLabel>{{ i18n.ts.pinnedList }}</SearchLabel></template>
@@ -798,7 +790,6 @@ const confirmOnReact = prefer.model('confirmOnReact');
 const defaultNoteVisibility = prefer.model('defaultNoteVisibility');
 const defaultNoteLocalOnly = prefer.model('defaultNoteLocalOnly');
 const rememberNoteVisibility = prefer.model('rememberNoteVisibility');
-const showGapBetweenNotesInTimeline = prefer.model('showGapBetweenNotesInTimeline');
 const notificationPosition = prefer.model('notificationPosition');
 const notificationStackAxis = prefer.model('notificationStackAxis');
 const instanceTicker = prefer.model('instanceTicker');
@@ -863,7 +854,6 @@ watch([
 	overridedDeviceKind,
 	alwaysConfirmFollow,
 	confirmWhenRevealingSensitiveMedia,
-	showGapBetweenNotesInTimeline,
 	mediaListWithOneImageAppearance,
 	reactionsDisplaySize,
 	limitWidthOfReaction,
diff --git a/packages/frontend/src/pref-migrate.ts b/packages/frontend/src/pref-migrate.ts
index a5e915f66e..13ca07cdcc 100644
--- a/packages/frontend/src/pref-migrate.ts
+++ b/packages/frontend/src/pref-migrate.ts
@@ -93,7 +93,6 @@ export function migrateOldSettings() {
 		prefer.commit('showFixedPostFormInChannel', store.s.showFixedPostFormInChannel);
 		prefer.commit('enableInfiniteScroll', store.s.enableInfiniteScroll);
 		prefer.commit('useReactionPickerForContextMenu', store.s.useReactionPickerForContextMenu);
-		prefer.commit('showGapBetweenNotesInTimeline', store.s.showGapBetweenNotesInTimeline);
 		prefer.commit('instanceTicker', store.s.instanceTicker);
 		prefer.commit('emojiPickerScale', store.s.emojiPickerScale);
 		prefer.commit('emojiPickerWidth', store.s.emojiPickerWidth);
diff --git a/packages/frontend/src/preferences/def.ts b/packages/frontend/src/preferences/def.ts
index f7d1b3bc83..af4423c6a4 100644
--- a/packages/frontend/src/preferences/def.ts
+++ b/packages/frontend/src/preferences/def.ts
@@ -214,9 +214,6 @@ export const PREF_DEF = {
 	useReactionPickerForContextMenu: {
 		default: false,
 	},
-	showGapBetweenNotesInTimeline: {
-		default: false,
-	},
 	instanceTicker: {
 		default: 'remote' as 'none' | 'remote' | 'always',
 	},