diff --git a/.coderabbit.yaml b/.coderabbit.yaml
new file mode 100644
index 0000000..9e82aec
--- /dev/null
+++ b/.coderabbit.yaml
@@ -0,0 +1,29 @@
+language: "ja"
+early_access: false
+reviews:
+    request_changes_workflow: false
+    high_level_summary: true
+    poem: true
+    review_status: true
+    collapse_walkthrough: false
+    path_filters:
+        - "!**/.xml"
+    path_instructions:
+        - path: "**/*.js"
+          instructions: "Review the JavaScript code for conformity with the Google JavaScript style guide, highlighting any deviations."
+        - path: "tests/**/*"
+          instructions: |
+              "Assess the unit test code employing the Mocha testing framework. Confirm that:
+              - The tests adhere to Mocha's established best practices.
+              - Test descriptions are sufficiently detailed to clarify the purpose of each test."
+    auto_review:
+        enabled: true
+        ignore_title_keywords:
+            - "WIP"
+            - "DO NOT MERGE"
+        drafts: false
+        base_branches:
+            - "develop"
+            - "feat/.*"
+chat:
+    auto_reply: true
\ No newline at end of file
diff --git a/src/repository/chatwork.ts b/src/repository/chatwork.ts
index ae3bf6a..43e7476 100644
--- a/src/repository/chatwork.ts
+++ b/src/repository/chatwork.ts
@@ -32,41 +32,16 @@ export const ChatworkRepositoryImpl = {
     roomId: string,
     accountId: string,
     message: string,
-    labels: string[],
   ): Promise<ChatworkPostResult> => {
-    const isHurry = labels.find((label) => label === "hurry");
-    const is2days = labels.find((label) => label === "2days");
-    let limit = 0;
     const now = new Date();
-    if (isHurry !== undefined) {
-      limit = new Date(
-        now.getFullYear(),
-        now.getMonth(),
-        now.getDate(),
-        23,
-        59,
-        59,
-      ).getTime();
-    } else if (is2days !== undefined) {
-      limit = new Date(
-        now.getFullYear(),
-        now.getMonth(),
-        now.getDate() + 2,
-        23,
-        59,
-        59,
-      ).getTime();
-    } else {
-      // is2weeks or default
-      limit = new Date(
-        now.getFullYear(),
-        now.getMonth(),
-        now.getDate() + 14,
-        23,
-        59,
-        59,
-      ).getTime();
-    }
+    const limit = Date.UTC(
+      now.getUTCFullYear(),
+      now.getUTCMonth(),
+      now.getUTCDate() + 14,
+      23,
+      59,
+      59
+    );
     const encodedParams = new URLSearchParams();
     encodedParams.set("body", message);
     encodedParams.set("to_ids", accountId);
diff --git a/src/usecase.ts b/src/usecase.ts
index c480b99..58767c8 100644
--- a/src/usecase.ts
+++ b/src/usecase.ts
@@ -44,11 +44,6 @@ export const execPrReviewRequestedMention = async (
   }
   core.info(`reviewers ${reviewers}`);
 
-  core.info(`labels ${payload.pull_request?.labels[0]?.name}`);
-  const labels = payload.pull_request?.labels?.map(
-    (label: any) => label.name,
-  ) as string[];
-
   const slackIds = convertToChatworkUsername(reviewers, mapping);
   if (slackIds.length === 0) {
     core.info(
@@ -87,7 +82,6 @@ export const execPrReviewRequestedMention = async (
       account.room_id,
       account.account_id,
       message,
-      labels,
     );
   }
 };