diff --git a/functions/db/room.js b/functions/db/room.js
index 578ede8..611dc89 100644
--- a/functions/db/room.js
+++ b/functions/db/room.js
@@ -115,7 +115,7 @@ const getEntriesByRoomId = async (client, roomId) => {
   return convertSnakeToCamel.keysToCamel(rows);
 };
 
-const getEntryIdsByRoomIds = async (client, roomIds) => {
+const getEntriesByRoomIds = async (client, roomIds) => {
   const { rows } = await client.query(
     `
     SELECT * FROM spark.entry e
@@ -426,5 +426,5 @@ module.exports = {
   getCardsByUserId,
   updateLife,
   getFailRecords,
-  getEntryIdsByRoomIds,
+  getEntriesByRoomIds,
 };
diff --git a/functions/scheduler/funcs.js b/functions/scheduler/funcs.js
index ee8027e..59d96df 100644
--- a/functions/scheduler/funcs.js
+++ b/functions/scheduler/funcs.js
@@ -2,48 +2,48 @@ const db = require('../db/db');
 const { roomDB, recordDB } = require('../db');
 const _ = require('lodash');
 const dayjs = require('dayjs');
-const { result } = require('lodash');
-const { fail } = require('../lib/util');
+
 const checkLife = async() => { 
     let client;
     try {
         client = await db.connect();
-        const failRecords = await roomDB.getFailRecords(client);
-        const roomGroupByFailCount = _.groupBy(failRecords, "failCount");
-        const failCountList = [... new Set(failRecords.map((o) => Number(o.failCount)))];
+        const failRecords = await roomDB.getFailRecords(client); // 습관방별 [실패한 record 개수(failCount)] 불러오기
+        const roomGroupByFailCount = _.groupBy(failRecords, "failCount"); // failCount별 roomId 묶어주기 (ex. [{"failCount": 1, "roomId": [1,2,3]}, {"failCount":2, "roomId": [4,5,6]}])
+        const failCountList = [... new Set(failRecords.map((o) => Number(o.failCount)))]; // failCount 뭐뭐있는지~ (ex. [1,2,3])
         const roomIdsByFailCount = {'1':[], '2':[], '3':[]};
         failCountList.map((failCount) => {
-            const roomIds = roomGroupByFailCount[failCount].map((o) => o.roomId);
+            const roomIds = roomGroupByFailCount[failCount].map((o) => o.roomId); // 해당 failCount의 roomId배열 
             if (failCount < 3) {
                 roomIdsByFailCount[failCount] = roomIds;
             }
-            else {
+            else { // failCount 3보다 크면 3으로 일괄처리
                 roomIdsByFailCount[3] = roomIdsByFailCount[3].concat(roomIds);
             }
         });
         
-        let afterLife = [];
-        for(let i=1; i<=3; i++) {
+        let afterLife = []; // 수명 깎아 준 후 습관방별 수명들
+        for(let i=1; i<=3; i++) { // 수명 깎아주기! - 3번 진행 (수명 1개깎이는 방 / 2개 깎이는 방 / 3개 깎이는 방)
             if(roomIdsByFailCount[i].length) {
                 afterLife = afterLife.concat(await roomDB.updateLife(client, i, roomIdsByFailCount[i]));
             }
         }
-        const failRoomIds = _.filter(afterLife, {life: 0}).map((o) => o.roomId);
-        const successRoomIds = _.difference(failRecords.map((o) => o.roomId), failRoomIds);
+        const failRoomIds = _.filter(afterLife, {life: 0}).map((o) => o.roomId); // 수명 깎아주고 나서 {life: 0} 이면 폭파된 방
+        const successRoomIds = _.difference(failRecords.map((o) => o.roomId), failRoomIds); // 살아남은 방들
 
-        if(!successRoomIds.length) {
+        if(!successRoomIds.length) { // 살아남은 방 없으면 return
             return;
         }
-        const successEntries = await roomDB.getEntryIdsByRoomIds(client, successRoomIds);
+        const successEntries = await roomDB.getEntriesByRoomIds(client, successRoomIds); // 성공한 방들의 entry 불러오기
         const now = dayjs().add(9, 'hour');
         const today = now.format('YYYY-MM-DD');
-        const insertEntries = successEntries.map((o) => {
+    
+        const insertEntries = successEntries.map((o) => { // 추가해줄 record들의 속성들 빚어주기
             const startDate = dayjs(o.startAt);
             const day = dayjs(today).diff(startDate, 'day') + 1;
             const queryParameter = "(" + o.entryId + ",'" + now.format('YYYY-MM-DD') + "'," + day + ")";
             return queryParameter;
         });
-        const resultRecords = await recordDB.insertRecords(client, insertEntries);
+        const resultRecords = await recordDB.insertRecords(client, insertEntries); // record 추가!
         console.log(resultRecords);
       } catch (error) {
       } finally {