diff --git a/src/comps/FavList.tsx b/src/comps/FavList.tsx
index 1ef3651..064db14 100644
--- a/src/comps/FavList.tsx
+++ b/src/comps/FavList.tsx
@@ -15,16 +15,18 @@ export default function FavList({
   items,
   arrowContainer,
   name,
+  readKeys,
 }: {
   items: any[]
   arrowContainer: HTMLElement
   name: string
+  readKeys?: Set<string>
 }) {
   const [expanded, setExpanded] = useState(false)
 
   useEffect(() => {
     ;(async () => {
-      setExpanded(await readRootExpansionState(name))
+      setExpanded(await readRootExpansionState(name, readKeys))
     })()
   }, [name])
 
@@ -41,7 +43,12 @@ export default function FavList({
         <FavArrow expanded={expanded} onToggle={toggleList} />,
         arrowContainer,
       )}
-      <SubList items={items} shown={expanded} storageKey={name} />
+      <SubList
+        items={items}
+        shown={expanded}
+        storageKey={name}
+        readKeys={readKeys}
+      />
     </>
   )
 }
@@ -50,10 +57,12 @@ function SubList({
   items,
   shown,
   storageKey,
+  readKeys,
 }: {
   items: any[]
   shown: boolean
   storageKey: string
+  readKeys?: Set<string>
 }) {
   const [childrenData, setChildrenData] = useState<any>(null)
   const expansionState = useRef<Record<string, boolean>>()
@@ -65,7 +74,7 @@ function SubList({
   useEffect(() => {
     if (shown && childrenData == null) {
       ;(async () => {
-        expansionState.current = await readExpansionState(storageKey)
+        expansionState.current = await readExpansionState(storageKey, readKeys)
         const data: any = {}
         for (const item of items) {
           if (item.filters) {
@@ -191,6 +200,7 @@ function SubList({
                 items={data.items}
                 shown={data.expanded}
                 storageKey={`${storageKey}-${displayName}`}
+                readKeys={readKeys}
               />
             )}
           </div>
diff --git a/src/libs/storage.ts b/src/libs/storage.ts
index 9965020..c1c2ddf 100644
--- a/src/libs/storage.ts
+++ b/src/libs/storage.ts
@@ -1,14 +1,18 @@
 const storage = logseq.Assets.makeSandboxStorage()
 
-export async function readExpansionState(key: string) {
+export async function readExpansionState(key: string, readKeys?: Set<string>) {
+  readKeys?.add(key)
   key = `expansion-${key}.json`
-  const str = (await storage.hasItem(key))
-    ? (await storage.getItem(key))!
-    : "{}"
+  const hasItem = await storage.hasItem(key)
+  const str = hasItem ? (await storage.getItem(key))! : "{}"
   return JSON.parse(str) as Record<string, boolean>
 }
 
-export async function readRootExpansionState(key: string) {
+export async function readRootExpansionState(
+  key: string,
+  readKeys?: Set<string>,
+) {
+  readKeys?.add(`_${key}`)
   key = `expansion-_${key}.json`
   if (await storage.hasItem(key)) {
     return JSON.parse((await storage.getItem(key))!) as boolean
@@ -29,3 +33,17 @@ export async function writeExpansionState(
   key = `expansion-${key}.json`
   await storage.setItem(key, JSON.stringify(value))
 }
+
+export async function allExpansionKeys() {
+  const keys = await storage.allKeys()
+  return keys
+    .filter((key) => key.startsWith("expansion-"))
+    .map((key) =>
+      key.substring("expansion-".length, key.length - ".json".length),
+    )
+}
+
+export async function removeExpansionState(key: string) {
+  key = `expansion-${key}.json`
+  await storage.removeItem(key)
+}
diff --git a/src/plugin.tsx b/src/plugin.tsx
index bf858d9..279cdea 100644
--- a/src/plugin.tsx
+++ b/src/plugin.tsx
@@ -3,9 +3,12 @@ import { setup, t } from "logseq-l10n"
 import { render } from "preact"
 import { throttle } from "rambdax"
 import FavList from "./comps/FavList"
+import { allExpansionKeys, removeExpansionState } from "./libs/storage"
 import { hash, queryForSubItems, setLanguage, waitForEl } from "./libs/utils"
 import zhCN from "./translations/zh-CN.json"
 
+const CLEAN_WAIT = 3000
+
 let dragHandle: HTMLElement | null = null
 
 async function main() {
@@ -82,7 +85,17 @@ async function main() {
   const graphOff = logseq.App.onCurrentGraphChanged(adjustLeftBarWidth)
 
   await waitForEl("#left-sidebar .favorite-item", 1000)
-  await processFavorites()
+
+  const readKeys = new Set<string>()
+  await processFavorites(readKeys)
+  setTimeout(async () => {
+    const keys = await allExpansionKeys()
+    const notReadKeys = keys.filter((key) => !readKeys.has(key))
+    for (const key of notReadKeys) {
+      await removeExpansionState(key)
+    }
+  }, CLEAN_WAIT)
+
   await adjustLeftBarWidth()
 
   logseq.provideUI({
@@ -184,19 +197,23 @@ function provideStyles() {
   })
 }
 
-async function processFavorites() {
+async function processFavorites(readKeys?: Set<string>) {
   const favorites = parent.document.querySelectorAll<HTMLElement>(
     `#left-sidebar .favorite-item`,
   )
   for (const fav of favorites) {
     const items = await queryForSubItems(fav.dataset.ref!)
     if (items?.length > 0) {
-      injectList(fav, items)
+      injectList(fav, items, readKeys)
     }
   }
 }
 
-async function injectList(el: HTMLElement, items: any[]) {
+async function injectList(
+  el: HTMLElement,
+  items: any[],
+  readKeys?: Set<string>,
+) {
   const key = `kef-ft-f-${await hash(el.dataset.ref!)}`
 
   const arrowContainer = el.querySelector("a")!
@@ -214,7 +231,7 @@ async function injectList(el: HTMLElement, items: any[]) {
   }
 
   setTimeout(() => {
-    renderList(key, items, arrowContainer, el.dataset.ref!)
+    renderList(key, items, arrowContainer, el.dataset.ref!, readKeys)
   }, 0)
 }
 
@@ -223,10 +240,16 @@ function renderList(
   items: any[],
   arrowContainer: HTMLElement,
   name: string,
+  readKeys?: Set<string>,
 ) {
   const el = parent.document.getElementById(key)!
   render(
-    <FavList items={items} arrowContainer={arrowContainer} name={name} />,
+    <FavList
+      items={items}
+      arrowContainer={arrowContainer}
+      name={name}
+      readKeys={readKeys}
+    />,
     el,
   )
 }