diff --git a/domain/room.go b/domain/room.go
index bea2a581..4027c79e 100644
--- a/domain/room.go
+++ b/domain/room.go
@@ -41,6 +41,7 @@ type RoomRepository interface {
 
 	GetRoom(roomID uuid.UUID, excludeEventID uuid.UUID) (*Room, error)
 	GetAllRooms(start time.Time, end time.Time, excludeEventID uuid.UUID) ([]*Room, error)
+	GetAllVerifiedRooms(start time.Time, end time.Time, excludeEventID uuid.UUID) ([]*Room, error)
 	IsRoomAdmins(roomID uuid.UUID, info *ConInfo) bool
 }
 
diff --git a/infra/db/room.go b/infra/db/room.go
index 9b385e2f..4233586e 100644
--- a/infra/db/room.go
+++ b/infra/db/room.go
@@ -16,7 +16,6 @@ func roomFullPreload(tx *gorm.DB) *gorm.DB {
 	return tx.Preload("Events").Preload("Admins").Preload("CreatedBy")
 }
 
-
 //go:generate go run github.com/fuji8/gotypeconverter/cmd/gotypeconverter@latest -s CreateRoomParams -d Room -o converter.go .
 type CreateRoomParams struct {
 	domain.WriteRoomParams
@@ -25,7 +24,6 @@ type CreateRoomParams struct {
 	CreatedBy uuid.UUID
 }
 
-
 //go:generate go run github.com/fuji8/gotypeconverter/cmd/gotypeconverter@latest -s UpdateRoomParams -d Room -o converter.go .
 type UpdateRoomParams struct {
 	domain.WriteRoomParams
@@ -89,6 +87,21 @@ func (repo GormRepository) GetAllRooms(start, end time.Time, excludeEventID uuid
 	return r, nil
 }
 
+func (repo GormRepository) GetAllVerifiedRooms(start, end time.Time, excludeEventID uuid.UUID) ([]*domain.Room, error) {
+	var rooms []*Room
+	var err error
+	if excludeEventID == uuid.Nil {
+		rooms, err = getAllVerifiedRooms(roomFullPreload(repo.db), start, end)
+	} else {
+		rooms, err = getAllVerifiedRooms(roomExcludeEventPreload(repo.db, excludeEventID), start, end)
+	}
+	if err != nil {
+		return nil, defaultErrorHandling(err)
+	}
+	r := ConvSPRoomToSPdomainRoom(rooms)
+	return r, nil
+}
+
 func createRoom(db *gorm.DB, roomParams CreateRoomParams) (*Room, error) {
 	room := ConvCreateRoomParamsToRoom(roomParams)
 	err := db.Create(&room).Error
@@ -132,3 +145,18 @@ func getAllRooms(db *gorm.DB, start, end time.Time) ([]*Room, error) {
 	err := db.Debug().Order("time_start").Find(&rooms).Error
 	return rooms, err
 }
+
+func getAllVerifiedRooms(db *gorm.DB, start, end time.Time) ([]*Room, error) {
+	rooms := make([]*Room, 0)
+	if !start.IsZero() {
+		db = db.Where("time_start >= ?", start)
+	}
+	if !end.IsZero() {
+		db = db.Where("time_end <= ?", end)
+	}
+
+	db.Where("verified = ?", true)
+
+	err := db.Debug().Order("time_start").Find(&rooms).Error
+	return rooms, err
+}
diff --git a/repository/room.go b/repository/room.go
index c076e851..3d2883e1 100644
--- a/repository/room.go
+++ b/repository/room.go
@@ -79,6 +79,11 @@ func (repo *Repository) GetAllRooms(start time.Time, end time.Time, excludeEvent
 	return rs, defaultErrorHandling(err)
 }
 
+func (repo *Repository) GetAllVerifiedRooms(start time.Time, end time.Time, excludeEventID uuid.UUID) ([]*domain.Room, error) {
+	rs, err := repo.GormRepo.GetAllVerifiedRooms(start, end, excludeEventID)
+	return rs, defaultErrorHandling(err)
+}
+
 func (repo *Repository) IsRoomAdmins(roomID uuid.UUID, info *domain.ConInfo) bool {
 	room, err := repo.GetRoom(roomID, uuid.Nil)
 	if err != nil {
diff --git a/router/middleware.go b/router/middleware.go
index 77feb07d..367f8f23 100644
--- a/router/middleware.go
+++ b/router/middleware.go
@@ -3,6 +3,7 @@ package router
 import (
 	"encoding/json"
 	"errors"
+	"fmt"
 	"net/http"
 	"strconv"
 	"time"
@@ -11,6 +12,7 @@ import (
 	"github.com/traPtitech/knoQ/router/logging"
 	"github.com/traPtitech/knoQ/router/presentation"
 	"github.com/traPtitech/knoQ/utils"
+	"github.com/traPtitech/knoQ/utils/tz"
 
 	"github.com/gofrs/uuid"
 	"go.uber.org/zap"
@@ -225,6 +227,37 @@ func (h *Handlers) WebhookEventHandler(c echo.Context, reqBody, resBody []byte)
 	_ = utils.RequestWebhook(content, h.WebhookSecret, h.ActivityChannelID, h.WebhookID, 1)
 }
 
+func (h *Handlers) WebhookRoomHandler(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		s, _ := time.Parse(time.TimeOnly, "06:00:00")
+		t := time.Now().In(tz.JST)
+		now := time.Date(t.Year(), t.Month(), t.Day(), s.Hour(), s.Minute(), s.Second(), 0, tz.JST)
+		tomorrow := now.AddDate(0, 0, 1)
+
+		todaysRoomsBefore, _ := h.Repo.GetAllVerifiedRooms(now, tomorrow, uuid.Nil)
+
+		println("RoomsBefore")
+		for _, room := range todaysRoomsBefore {
+			fmt.Printf("%v\n", *room)
+		}
+
+		err := next(c)
+
+		todaysRoomsAfter, _ := h.Repo.GetAllVerifiedRooms(now, tomorrow, uuid.Nil)
+
+		println("RoomsAfter")
+		for _, room := range todaysRoomsAfter {
+			fmt.Printf("%v\n", *room)
+		}
+
+		content := utils.GenerateTodaysEventContent(now, todaysRoomsAfter, nil, h.Origin)
+
+		print(content)
+
+		return err
+	}
+}
+
 // getRequestUserID sessionからuserを返します
 func getRequestUserID(c echo.Context) (uuid.UUID, error) {
 	sess, err := session.Get("session", c)
@@ -281,3 +314,8 @@ func setMaxAgeMinus(c echo.Context) {
 	}
 	c.SetCookie(sess)
 }
+
+func isTodaysVerifiedRoomsUpdated(todaysRoomsBefore, todaysRoomsAfter []*domain.Room) bool {
+
+	return false
+}
diff --git a/router/router.go b/router/router.go
index 9855d1f1..4a4e6a11 100644
--- a/router/router.go
+++ b/router/router.go
@@ -114,7 +114,7 @@ func (h *Handlers) SetupRoute() *echo.Echo {
 			// サービス管理者権限が必要
 			roomsAPIWithPrivilegeAuth := roomsAPI.Group("", h.PrivilegeUserMiddleware)
 			{
-				roomsAPIWithPrivilegeAuth.POST("/all", h.HandleCreateVerifedRooms)
+				roomsAPIWithPrivilegeAuth.POST("/all", h.HandleCreateVerifedRooms, h.WebhookRoomHandler)
 				roomsAPIWithPrivilegeAuth.POST("/:roomid/verified", h.HandleVerifyRoom)
 				roomsAPIWithPrivilegeAuth.DELETE("/:roomid/verified", h.HandleUnVerifyRoom)
 			}
diff --git a/utils/cron.go b/utils/cron.go
index 85677b6a..4083626e 100644
--- a/utils/cron.go
+++ b/utils/cron.go
@@ -32,7 +32,7 @@ func InitPostEventToTraQ(repo *db.GormRepository, secret, channelID, webhookID,
 			fmt.Println(err)
 		}
 		events, _ := repo.GetAllEvents(expr)
-		message := createMessage(now, rooms, events, origin)
+		message := GenerateTodaysEventContent(now, rooms, events, origin)
 		err = RequestWebhook(message, secret, channelID, webhookID, 1)
 		if err != nil {
 			fmt.Println(err)
@@ -99,7 +99,7 @@ func makeRoomAvailableByTimeTable(rooms []*domain.Room, timeTables []timeTable,
 	return roomAvailable
 }
 
-func createMessage(t time.Time, rooms []*domain.Room, events []*db.Event, origin string) string {
+func GenerateTodaysEventContent(t time.Time, rooms []*domain.Room, events []*db.Event, origin string) string {
 	date := t.In(tz.JST).Format("01/02(Mon)")
 	combined := map[bool]string{
 		true:  "(併用可)",