diff --git a/handler/messageCreate.go b/handler/messageCreate.go
index ec101ee..962330e 100644
--- a/handler/messageCreate.go
+++ b/handler/messageCreate.go
@@ -1,15 +1,23 @@
 package handler
 
 import (
+	"strings"
+
 	"github.com/bwmarrin/discordgo"
 )
 
+// MessageCreate is handlers of messageCreate event
 func MessageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
 	if m.Author.ID == s.State.User.ID && m.Author.Bot {
 		return
 	}
 
-	if m.Content == "!ping" {
-		s.ChannelMessageSend(m.ChannelID, "Pong!")
+	if strings.HasPrefix(m.Content, "머핀아 ") {
+		content := strings.TrimPrefix(m.Content, "머핀아 ")
+		if content == "안녕" {
+			s.ChannelMessageSend(m.ChannelID, "안녕")
+		}
+	} else {
+		return
 	}
 }
diff --git a/main.go b/main.go
index 949c91b..12d60a5 100644
--- a/main.go
+++ b/main.go
@@ -9,18 +9,12 @@ import (
 
 	"github.com/Muffin-laboratory/goMuffin/handler"
 	"github.com/bwmarrin/discordgo"
-	"github.com/joho/godotenv"
 )
 
 func main() {
-	err := godotenv.Load()
-	token := os.Getenv("TOKEN")
-	if err != nil {
-		fmt.Println("[goMuffin] 봇의 설절파일을 불러올 수가 없어요.")
-		log.Fatalln(err)
-	}
+	config := LoadConfig()
 
-	dg, err := discordgo.New("Bot " + token)
+	dg, err := discordgo.New("Bot " + config.token)
 	if err != nil {
 		fmt.Println("[goMuffin] 봇의 세션을 만들수가 없어요.")
 		log.Fatalln(err)
@@ -35,6 +29,5 @@ func main() {
 	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
 	<-sc
 
-	// Cleanly close down the Discord session.
 	dg.Close()
 }