diff --git a/packages/frontend/src/components/MkPageWindow.vue b/packages/frontend/src/components/MkPageWindow.vue
index 6e35ad4241..af9c95eeaf 100644
--- a/packages/frontend/src/components/MkPageWindow.vue
+++ b/packages/frontend/src/components/MkPageWindow.vue
@@ -18,7 +18,7 @@
 	</template>
 
 	<div ref="contents" :class="$style.root" style="container-type: inline-size;">
-		<RouterView :key="reloadCount" :router="router"/>
+		<RouterView :key="reloadCount" :router="router" :scrollContainer="contents"/>
 	</div>
 </MkWindow>
 </template>
@@ -32,12 +32,11 @@ import copyToClipboard from '@/scripts/copy-to-clipboard';
 import { url } from '@/config';
 import { mainRouter, routes, page } from '@/router';
 import { $i } from '@/account';
-import { Router, useScrollPositionManager } from '@/nirax';
+import { Router } from '@/nirax';
 import { i18n } from '@/i18n';
 import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 import { openingWindowsCount } from '@/os';
 import { claimAchievement } from '@/scripts/achievements';
-import { getScrollContainer } from '@/scripts/scroll';
 
 const props = defineProps<{
 	initialPath: string;
@@ -141,8 +140,6 @@ function popout() {
 	windowEl.close();
 }
 
-useScrollPositionManager(() => getScrollContainer(contents.value), router);
-
 onMounted(() => {
 	openingWindowsCount.value++;
 	if (openingWindowsCount.value >= 3) {
diff --git a/packages/frontend/src/components/global/RouterView.vue b/packages/frontend/src/components/global/RouterView.vue
index 5763c84e81..76b1559a30 100644
--- a/packages/frontend/src/components/global/RouterView.vue
+++ b/packages/frontend/src/components/global/RouterView.vue
@@ -11,12 +11,18 @@
 </template>
 
 <script lang="ts" setup>
-import { inject, onBeforeUnmount, provide } from 'vue';
-import { Resolved, Router } from '@/nirax';
+import { computed, inject, onBeforeUnmount, provide, nextTick } from 'vue';
+import { NiraxChangeEvent, Resolved, Router } from '@/nirax';
 import { defaultStore } from '@/store';
+import { getScrollContainer } from '@/scripts/scroll';
 
 const props = defineProps<{
 	router?: Router;
+
+	/**
+	 * Set any element if scroll position management needed
+	 */
+	scrollContainer?: HTMLElement | null;
 }>();
 
 const router = props.router ?? inject('router');
@@ -45,17 +51,49 @@ let currentPageComponent = $shallowRef(current.route.component);
 let currentPageProps = $ref(current.props);
 let key = $ref(current.route.path + JSON.stringify(Object.fromEntries(current.props)));
 
-function onChange({ resolved, key: newKey }) {
-	const current = resolveNested(resolved);
+const scrollContainer = computed(() => props.scrollContainer ? (getScrollContainer(props.scrollContainer) ?? document.getElementsByTagName('html')[0]) : undefined);
+
+const scrollPosStore = new Map<string, number>();
+
+function onChange(ctx: NiraxChangeEvent) {
+	// save scroll position
+	if (scrollContainer.value) scrollPosStore.set(key, scrollContainer.value.scrollTop);
+
+	//#region change page
+	const current = resolveNested(ctx.resolved);
 	if (current == null) return;
 	currentPageComponent = current.route.component;
 	currentPageProps = current.props;
 	key = current.route.path + JSON.stringify(Object.fromEntries(current.props));
+	//#endregion
+
+	//#region scroll
+	nextTick(() => {
+		if (!scrollContainer.value) return;
+
+		const scrollPos = scrollPosStore.get(key) ?? 0;
+		scrollContainer.value.scroll({ top: scrollPos, behavior: 'instant' });
+		if (scrollPos !== 0) {
+			window.setTimeout(() => { // 遷移直後はタイミングによってはコンポーネントが復元し切ってない可能性も考えられるため少し時間を空けて再度スクロール
+				if (!scrollContainer.value) return;
+				scrollContainer.value.scroll({ top: scrollPos, behavior: 'instant' });
+			}, 100);
+		}
+	});
+	//#endregion
 }
 
 router.addListener('change', onChange);
 
+function onSame() {
+	if (!scrollContainer.value) return;
+	scrollContainer.value.scroll({ top: 0, behavior: 'smooth' });
+}
+
+router.addListener('same', onSame);
+
 onBeforeUnmount(() => {
 	router.removeListener('change', onChange);
+	router.removeListener('same', onSame);
 });
 </script>
diff --git a/packages/frontend/src/nirax.ts b/packages/frontend/src/nirax.ts
index 3a03444de2..5a92507bce 100644
--- a/packages/frontend/src/nirax.ts
+++ b/packages/frontend/src/nirax.ts
@@ -49,24 +49,30 @@ function parsePath(path: string): ParsedPath {
 	return res;
 }
 
+export type NiraxChangeEvent = {
+	beforePath: string;
+	path: string;
+	resolved: Resolved;
+	key: string;
+};
+
+export type NiraxExportEvent = {
+	path: string;
+	key: string;
+};
+
+export type NiraxPushEvent = {
+	beforePath: string;
+	path: string;
+	route: RouteDef | null;
+	props: Map<string, string> | null;
+	key: string;
+};
+
 export class Router extends EventEmitter<{
-	change: (ctx: {
-		beforePath: string;
-		path: string;
-		resolved: Resolved;
-		key: string;
-	}) => void;
-	replace: (ctx: {
-		path: string;
-		key: string;
-	}) => void;
-	push: (ctx: {
-		beforePath: string;
-		path: string;
-		route: RouteDef | null;
-		props: Map<string, string> | null;
-		key: string;
-	}) => void;
+	change: (ctx: NiraxChangeEvent) => void;
+	replace: (ctx: NiraxExportEvent) => void;
+	push: (ctx: NiraxExportEvent) => void;
 	same: () => void;
 }> {
 	private routes: RouteDef[];
@@ -271,29 +277,3 @@ export class Router extends EventEmitter<{
 		this.navigate(path, key);
 	}
 }
-
-export function useScrollPositionManager(getScrollContainer: () => HTMLElement, router: Router) {
-	const scrollPosStore = new Map<string, number>();
-
-	onMounted(() => {
-		const scrollContainer = getScrollContainer();
-
-		scrollContainer.addEventListener('scroll', () => {
-			scrollPosStore.set(router.getCurrentKey(), scrollContainer.scrollTop);
-		}, { passive: true });
-
-		router.addListener('change', ctx => {
-			const scrollPos = scrollPosStore.get(ctx.key) ?? 0;
-			scrollContainer.scroll({ top: scrollPos, behavior: 'instant' });
-			if (scrollPos !== 0) {
-				window.setTimeout(() => { // 遷移直後はタイミングによってはコンポーネントが復元し切ってない可能性も考えられるため少し時間を空けて再度スクロール
-					scrollContainer.scroll({ top: scrollPos, behavior: 'instant' });
-				}, 100);
-			}
-		});
-
-		router.addListener('same', () => {
-			scrollContainer.scroll({ top: 0, behavior: 'smooth' });
-		});
-	});
-}
diff --git a/packages/frontend/src/ui/deck/main-column.vue b/packages/frontend/src/ui/deck/main-column.vue
index 0413307955..9d730171eb 100644
--- a/packages/frontend/src/ui/deck/main-column.vue
+++ b/packages/frontend/src/ui/deck/main-column.vue
@@ -8,7 +8,7 @@
 	</template>
 
 	<div ref="contents">
-		<RouterView @contextmenu.stop="onContextmenu"/>
+		<RouterView :scrollContainer="contents" @contextmenu.stop="onContextmenu"/>
 	</div>
 </XColumn>
 </template>
@@ -21,8 +21,6 @@ import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { mainRouter } from '@/router';
 import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
-import { useScrollPositionManager } from '@/nirax';
-import { getScrollContainer } from '@/scripts/scroll';
 
 defineProps<{
 	column: Column;
@@ -66,6 +64,4 @@ function onContextmenu(ev: MouseEvent) {
 		},
 	}], ev);
 }
-
-useScrollPositionManager(() => getScrollContainer(contents.value), mainRouter);
 </script>
diff --git a/packages/frontend/src/ui/universal.vue b/packages/frontend/src/ui/universal.vue
index 9ae43c39d3..4f80e8cbbb 100644
--- a/packages/frontend/src/ui/universal.vue
+++ b/packages/frontend/src/ui/universal.vue
@@ -4,7 +4,7 @@
 
 	<MkStickyContainer ref="contents" :class="$style.contents" style="container-type: inline-size;" @contextmenu.stop="onContextmenu">
 		<template #header><XStatusBars :class="$style.statusbars"/></template>
-		<RouterView/>
+		<RouterView :scrollContainer="contents?.rootEl"/>
 		<div :class="$style.spacer"></div>
 	</MkStickyContainer>
 
@@ -95,7 +95,6 @@ import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 import { deviceKind } from '@/scripts/device-kind';
 import { miLocalStorage } from '@/local-storage';
 import { CURRENT_STICKY_BOTTOM } from '@/const';
-import { useScrollPositionManager } from '@/nirax';
 
 const XWidgets = defineAsyncComponent(() => import('./universal.widgets.vue'));
 const XSidebar = defineAsyncComponent(() => import('@/ui/_common_/navbar.vue'));
@@ -214,8 +213,6 @@ watch($$(navFooter), () => {
 }, {
 	immediate: true,
 });
-
-useScrollPositionManager(() => contents.value.rootEl, mainRouter);
 </script>
 
 <style>