diff --git a/.github/workflows/remove-assignees.yml b/.github/workflows/remove-assignees.yml
new file mode 100644
index 000000000..4a9c83347
--- /dev/null
+++ b/.github/workflows/remove-assignees.yml
@@ -0,0 +1,20 @@
+name: 'Remove Assignees for stale issue'
+on:
+  issues:
+    types: [labeled]
+
+permissions:
+  issues: write
+
+jobs:
+  remove-assignees:
+    if: github.event.label.name == 'stale'
+    runs-on: ubuntu-latest
+    steps:
+      - name: 이슈 할당 해제
+        run: |
+          curl -X PATCH \
+            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            -H "Accept: application/vnd.github.v3+json" \
+            "https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.issue.number }}" \
+            -d '{"assignees":[]}'
diff --git a/.github/workflows/stale-issue.yml b/.github/workflows/stale-issue.yml
new file mode 100644
index 000000000..19f660577
--- /dev/null
+++ b/.github/workflows/stale-issue.yml
@@ -0,0 +1,29 @@
+name: 'Stale Issue'
+on:
+  schedule:
+    - cron: '0 1 * * *'
+  workflow_dispatch:
+
+permissions:
+  issues: write
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v9
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-stale: 30 
+          days-before-close: -1
+
+          stale-issue-message: '30일 동안 작업이 없어 할당을 해제합니다.'
+          stale-issue-label: 'stale'
+          exempt-issue-labels: 'DO NOT CLOSE OR MERGE,discussion,term,TIP'
+
+          days-before-pr-stale: -1
+
+          labels-to-remove-when-unstale: 'stale'
+
+          include-only-assigned: true
+
diff --git a/src/content/learn/preserving-and-resetting-state.md b/src/content/learn/preserving-and-resetting-state.md
index b23d99752..5d09f40a1 100644
--- a/src/content/learn/preserving-and-resetting-state.md
+++ b/src/content/learn/preserving-and-resetting-state.md
@@ -671,7 +671,11 @@ label {
 
 </Sandpack>
 
+<<<<<<< HEAD
 체크 박스를 선택할 때 카운터 state가 초기화됩니다. `div`의 첫 번째 자식으로 `Counter`를 렌더링하는 것에서 `section`의 첫 번째 자식으로 바꾸지만요. 자식 `div`가 DOM에서 제거될 때 그것의 전체 하위 트리(`Counter`와 그 state를 포함해서)는 제거됩니다.
+=======
+The counter state gets reset when you click the checkbox. Although you render a `Counter`, the first child of the `div` changes from a `section` to a `div`. When the child `section` was removed from the DOM, the whole tree below it (including the `Counter` and its state) was destroyed as well.
+>>>>>>> 3ee3a60a1bcc687c0b87039a3a6582e3b1d6887c
 
 <DiagramGroup>