diff --git a/src/command/commands.ts b/src/command/commands.ts
index 57899fe..752a151 100644
--- a/src/command/commands.ts
+++ b/src/command/commands.ts
@@ -1,6 +1,7 @@
 import { TCommand } from "../functions.js";
 
 import add_nick_super from "./commands/add_nick_super.js";
+import add_nick from "./commands/add_nick.js";
 
-const commands: TCommand[] = [add_nick_super];
+const commands: TCommand[] = [add_nick_super, add_nick];
 export default commands;
diff --git a/src/command/commands/add_nick.js b/src/command/commands/add_nick.js
deleted file mode 100755
index 194afd9..0000000
--- a/src/command/commands/add_nick.js
+++ /dev/null
@@ -1,90 +0,0 @@
-const { SlashCommandBuilder } = require("discord.js");
-const mojangAPI = new (require("mojang-api-js"))();
-
-const firebase_admin = require("firebase-admin");
-const { getDatabase } = require("firebase-admin/database");
-const serviceAccount = require("../firebase/conf.json");
-if (!firebase_admin.apps.length) {
-  firebase_admin.initializeApp({
-    credential: firebase_admin.credential.cert(serviceAccount),
-    databaseURL: process.env.FIREBASE_URL,
-    databaseAuthVariableOverride: {
-      uid: process.env.FIREBASE_UID,
-    },
-  });
-}
-const firebase = getDatabase().ref("/");
-
-module.exports = {
-  data: new SlashCommandBuilder()
-    .setName("add_nick")
-    .setDescription("Add your nickname on the list and share it to 2k2rs")
-    .addStringOption((option) => option.setName("minecraft_id").setDescription("id of the minecraft account").setRequired(true))
-    .setDMPermission(false),
-  async execute(interaction) {
-    await interaction.deferReply({ ephemeral: true });
-    let minecraft;
-    try {
-      minecraft = await mojangAPI.nameToUuid(interaction.options.getString("minecraft_id"));
-    } catch (err) {
-      if (err.message == "204 status code") {
-        await interaction.editReply({
-          content: "`에러`: 닉네임 검색을 실패했어요(닉네임을 정확하게 입력했나요?)",
-          ephemeral: true,
-        });
-        return;
-      }
-    }
-
-    let data = (await firebase.get()).val();
-
-    for (let discord_search_point in data["blacklist"]) {
-      if (data["blacklist"][discord_search_point].discord == interaction.user.id) {
-        await interaction.editReply({
-          content: "`에러`:해당 디스코드 아이디는 블랙리스팅 되었습니다! ~~2k2r에서 꺼져주세요!~~",
-          ephemeral: true,
-        });
-        return;
-      }
-      for (let minecraft_search_point in data["blacklist"][discord_search_point].minecraft) {
-        if (data["blacklist"][discord_search_point].minecraft[minecraft_search_point] == minecraft.id) {
-          await interaction.editReply({
-            content: "`에러`:해당 마인크래프트 아이디는 블랙리스팅 되었습니다!",
-            ephemeral: true,
-          });
-          return;
-        }
-      }
-    }
-
-    for (let discord_search_point in data["members"]) {
-      for (let minecraft_search_point in data["members"][discord_search_point].minecraft) {
-        if (data["members"][discord_search_point].minecraft[minecraft_search_point] == minecraft.id) {
-          await interaction.editReply({
-            content: "`에러`:해당 마인크래프트 아이디는 이미 등록되었습니다!",
-            ephemeral: true,
-          });
-          return;
-        }
-      } //신규 마크일 경우
-      if (data["members"][discord_search_point].discord == interaction.user.id) {
-        await interaction.editReply({
-          content: `${minecraft.name}(${minecraft.id})이 성공적으로 부계정으로 등록되었습니다!`,
-          ephemeral: true,
-        });
-        data["members"][discord_search_point].minecraft.push(minecraft.id);
-        await firebase.set(data);
-        return;
-      }
-    } //신규 디코일 경우
-    await interaction.editReply({
-      content: `${minecraft.name}(${minecraft.id})님 2k2r에 오신것을 환영합니다!`,
-      ephemeral: true,
-    });
-    data["members"].push({
-      discord: interaction.user.id,
-      minecraft: [minecraft.id],
-    });
-    await firebase.set(data);
-  },
-};
diff --git a/src/command/commands/add_nick.ts b/src/command/commands/add_nick.ts
new file mode 100755
index 0000000..5bea1f1
--- /dev/null
+++ b/src/command/commands/add_nick.ts
@@ -0,0 +1,66 @@
+import { SlashCommandBuilder, ChatInputCommandInteraction } from "discord.js";
+import mojangAPI from "../../wrapper/mojang-api.js";
+import firebase from "../../wrapper/firebase.js";
+
+export default {
+  data: new SlashCommandBuilder()
+    .setName("add_nick")
+    .setDescription("Add your nickname on the list and share it to 2k2rs")
+    .addStringOption((option) =>
+      option
+        .setName("minecraft_id")
+        .setDescription("id of the minecraft account")
+        .setRequired(true)
+    )
+    .setDMPermission(false),
+  async execute(interaction: ChatInputCommandInteraction) {
+    const discord_id = interaction.user.id;
+    const mcid = interaction.options.getString("minecraft_id") as string;
+    let mcuuid: string;
+    try {
+      mcuuid = await mojangAPI.getUUIDFromId(mcid);
+    } catch {
+      await interaction.editReply({
+        content:
+          "`에러`: 마인크래프트 닉네임 검색을 실패했습니다. 마인크래프트 닉네임을 정확하게 입력했나요?",
+      });
+      return;
+    }
+
+    const members = firebase.collection("members");
+    const blacklist = firebase.collection("blacklist");
+
+    if (!(await blacklist.where("discord_id", "==", discord_id).get()).empty) {
+      interaction.editReply({
+        content: "`에러`: 해당 디스코드 아이디는 블랙리스트 되었습니다.",
+      });
+      return;
+    }
+    if (!(await blacklist.where("minecraft_uuid", "==", mcuuid).get()).empty) {
+      interaction.editReply({
+        content: "`에러`: 해당 마인크래프트 계정은 블랙리스트 되었습니다.",
+      });
+      return;
+    }
+    if (!(await members.where("minecraft_uuid", "==", mcuuid).get()).empty) {
+      interaction.editReply({
+        content: "`에러`: 해당 마인크래프트 아이디는 이미 등록되었습니다.",
+      });
+      return;
+    }
+
+    if (!(await members.where("discord_id", "==", discord_id).get()).empty) {
+      await interaction.editReply({
+        content: `${mcid}(${mcuuid})님 2k2r에 오신것을 환영합니다!`,
+      });
+    } else {
+      await interaction.editReply({
+        content: `${mcid}(${mcuuid})이 성공적으로 부계정으로 등록되었습니다!`,
+      });
+    }
+    await members.add({
+      discord_id,
+      minecraft_uuid: mcuuid,
+    });
+  },
+};