diff --git a/src/components/Game/GameChat/index.tsx b/src/components/Game/GameChat/index.tsx
index a3945b11..128dd00e 100644
--- a/src/components/Game/GameChat/index.tsx
+++ b/src/components/Game/GameChat/index.tsx
@@ -9,6 +9,8 @@ import {
 import { useEffect, useRef, useState } from "react";
 import { io } from "socket.io-client";
 import ChatBubble from "../../common/ChatBubble";
+import SystemChat from "../../common/SystemChat";
+import Vote from "../Vote";
 
 interface Message {
   id: string;
@@ -17,9 +19,17 @@ interface Message {
 
 interface GameChatProps {
   gameId: string;
+  gameData: any;
 }
 
-const GameChat: React.FC<GameChatProps> = ({ gameId }) => {
+interface UserResponse {
+  users: string[];
+  joiners?: string[];
+  leaver?: string;
+}
+
+const GameChat: React.FC<GameChatProps> = ({ gameId, gameData }) => {
+  console.log("GameChat/ gameData:", gameData);
   const token = JSON.parse(localStorage.getItem("token") as string);
 
   const socket = io(`https://fastcampus-chat.net/chat?chatId=${gameId}`, {
@@ -35,6 +45,26 @@ const GameChat: React.FC<GameChatProps> = ({ gameId }) => {
   });
   const [messages, setMessages]: any = useState([]);
   const messageRef = useRef<HTMLInputElement | null>(null);
+  const [users, setUsers] = useState<string[]>([]);
+  console.log("users: ", users);
+  const [showVoteModal, setShowVoteModal] = useState(false);
+  const [selectedUser, setSelectedUser] = useState<string | null>("");
+
+  const handleOpenVoteModal = () => {
+    setShowVoteModal(true);
+  };
+
+  const handleCloseVoteModal = (selectedUser: string) => {
+    setShowVoteModal(false);
+    setSelectedUser(selectedUser);
+  };
+
+  // const handleCalculateVoteClose = (finalLiar: string) => {
+  //   // finalLiar를 이용하여 특정 동작 수행 (SystemChat)
+
+  //   // 선택한 결과 초기화
+  //   setSelectedUser("");
+  // };
 
   useEffect(() => {
     socket.on("message-to-client", (messageObject) => {
@@ -48,6 +78,25 @@ const GameChat: React.FC<GameChatProps> = ({ gameId }) => {
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [socket]);
 
+  useEffect(() => {
+    // 유저 입장 메시지 수신
+    socket.on("join", (responseData: UserResponse) => {
+      const systemMessage = `${responseData.joiners!.join(
+        ", ",
+      )} 님이 입장했습니다.`;
+
+      setMessages([...messages, { id: "system", text: systemMessage }]);
+      setUsers(responseData.users);
+    });
+
+    // 유저 퇴장 메시지 수신
+    socket.on("leave", (responseData: UserResponse) => {
+      const systemMessage = `${responseData.leaver} 님이 퇴장했습니다.`;
+      setMessages([...messages, { id: "system", text: systemMessage }]);
+      setUsers(responseData.users);
+    });
+  }, []);
+
   // 메시지 값 변화시(소켓 통신 시) 콘솔에 메시지 데이터 출력
   useEffect(() => {
     if (message.id !== "") {
@@ -74,9 +123,23 @@ const GameChat: React.FC<GameChatProps> = ({ gameId }) => {
   return (
     <Card p={3} h="100%" mb="20px">
       <CardBody>
-        {messages.map((message: Message, index: number) => (
-          <ChatBubble key={index} userId={message.id} text={message.text} />
-        ))}
+        {messages.map((message: Message, index: number) =>
+          // 시스템 메시지인 경우 SystemMessage 컴포넌트 사용
+          message.id === "system" ? (
+            <SystemChat key={index} text={message.text} />
+          ) : (
+            <ChatBubble key={index} userId={message.id} text={message.text} />
+          ),
+        )}
+        <Button size="md" onClick={handleOpenVoteModal}>
+          투표하기
+        </Button>
+        {showVoteModal && (
+          <Vote gameData={gameData} onClose={handleCloseVoteModal} />
+        )}
+        {selectedUser && (
+          <SystemChat text={`${selectedUser}님이 라이어로 선택되었습니다.`} />
+        )}
       </CardBody>
       <InputGroup size="md">
         <Input
diff --git a/src/components/Game/Vote/CalculateVote.tsx b/src/components/Game/Vote/CalculateVote.tsx
new file mode 100644
index 00000000..3d3612f1
--- /dev/null
+++ b/src/components/Game/Vote/CalculateVote.tsx
@@ -0,0 +1,82 @@
+import React, { useState, useEffect } from "react";
+import {
+  Button,
+  Modal,
+  ModalOverlay,
+  ModalContent,
+  ModalHeader,
+  ModalCloseButton,
+  ModalBody,
+  ModalFooter,
+  Text,
+} from "@chakra-ui/react";
+import useFireFetch from "../../../hooks/useFireFetch";
+
+interface CalculateVoteProps {
+  voteResults: string;
+  onClose: (finalLiar: string) => void;
+  gameId: string;
+}
+
+const CalculateVote: React.FC<CalculateVoteProps> = ({
+  voteResults,
+  onClose,
+  gameId,
+}) => {
+  const [finalLiar, setFinalLiar] = useState<string>("");
+  const fireFetch = useFireFetch();
+
+  // 투표 결과 계산 로직
+  useEffect(() => {
+    const calculateFinalLiar = async () => {
+      const gameData = await fireFetch.useGetSome("game", "id", gameId);
+      const { users, votedFor } = gameData.data[0];
+
+      const votesCount: Record<string, number> = {};
+      users.forEach((user: string) => {
+        if (votedFor.includes(user)) {
+          votesCount[user] = (votesCount[user] || 0) + 1;
+        }
+      });
+
+      let maxVotes = 0;
+      for (const user in votesCount) {
+        if (votesCount[user] > maxVotes) {
+          maxVotes = votesCount[user];
+          setFinalLiar(user);
+        }
+      }
+    };
+
+    calculateFinalLiar();
+  }, [voteResults, gameId, fireFetch]);
+
+  // 투표 결과 계산 후 최종 라이어를 부모 컴포넌트로 전달
+  useEffect(() => {
+    if (finalLiar) {
+      onClose(finalLiar);
+    }
+  }, [finalLiar, onClose]);
+
+  return (
+    <Modal isOpen={true} onClose={() => {}}>
+      <ModalOverlay />
+      <ModalContent>
+        <ModalHeader>투표 결과 계산 중</ModalHeader>
+        <ModalCloseButton />
+        <ModalBody>
+          <Text>투표 결과 계산 중입니다...</Text>
+        </ModalBody>
+        <ModalFooter>
+          {finalLiar && (
+            <Button colorScheme="blue" onClick={() => onClose(finalLiar)}>
+              계산 완료
+            </Button>
+          )}
+        </ModalFooter>
+      </ModalContent>
+    </Modal>
+  );
+};
+
+export default CalculateVote;
diff --git a/src/components/Game/Vote/index.tsx b/src/components/Game/Vote/index.tsx
index bfcea1eb..a7216940 100644
--- a/src/components/Game/Vote/index.tsx
+++ b/src/components/Game/Vote/index.tsx
@@ -1,5 +1,82 @@
-const Vote = () => {
-  return <div>Vote</div>;
+import { useState } from "react";
+import {
+  Modal,
+  ModalOverlay,
+  ModalContent,
+  ModalHeader,
+  ModalCloseButton,
+  ModalBody,
+  ModalFooter,
+  Button,
+  Radio,
+  RadioGroup,
+  Stack,
+} from "@chakra-ui/react";
+import useFireFetch from "../../../hooks/useFireFetch";
+import { arrayUnion } from "firebase/firestore";
+
+interface GameData {
+  id: string;
+  users: string[];
+}
+
+interface VoteProps {
+  onClose: (selectedUser: string) => void;
+  gameData: GameData;
+}
+
+const Vote: React.FC<VoteProps> = ({
+  onClose,
+  gameData,
+}): React.ReactElement => {
+  const [selectedUser, setSelectedUser] = useState<string>("");
+  const fireFetch = useFireFetch();
+
+  const storedToken = localStorage.getItem("token");
+  const tokenData = storedToken ? JSON.parse(storedToken) : null;
+
+  const handleUserChange = (value: string) => {
+    setSelectedUser(value);
+  };
+
+  const handleVoteSubmit = () => {
+    if (selectedUser !== null) {
+      const myId = tokenData.id;
+      fireFetch.updateData("game", gameData.id, {
+        votedFor: arrayUnion({ by: myId, liar: selectedUser }),
+      });
+      console.log(selectedUser + "에 투표했습니다.");
+      onClose(selectedUser);
+    }
+  };
+
+  return (
+    <>
+      <Modal isOpen={true} onClose={() => onClose(selectedUser)}>
+        <ModalOverlay />
+        <ModalContent>
+          <ModalHeader>라이어 투표하기</ModalHeader>
+          <ModalCloseButton />
+          <ModalBody>
+            <RadioGroup value={selectedUser} onChange={handleUserChange}>
+              <Stack spacing={2}>
+                {gameData.users.map((user) => (
+                  <Radio key={user} value={user}>
+                    {user}
+                  </Radio>
+                ))}
+              </Stack>
+            </RadioGroup>
+          </ModalBody>
+          <ModalFooter>
+            <Button colorScheme="blue" mr={3} onClick={handleVoteSubmit}>
+              투표 완료
+            </Button>
+          </ModalFooter>
+        </ModalContent>
+      </Modal>
+    </>
+  );
 };
 
 export default Vote;
diff --git a/src/components/common/SystemChat.tsx b/src/components/common/SystemChat.tsx
new file mode 100644
index 00000000..ef252e42
--- /dev/null
+++ b/src/components/common/SystemChat.tsx
@@ -0,0 +1,16 @@
+import React from "react";
+import { Box } from "@chakra-ui/react";
+
+interface SystemChatProps {
+  text: string;
+}
+
+const SystemChat: React.FC<SystemChatProps> = ({ text }) => {
+  return (
+    <Box textAlign="center" bgColor="gray.300" p={1} borderRadius={5} my={2}>
+      {text}
+    </Box>
+  );
+};
+
+export default SystemChat;
diff --git a/src/pages/Game/index.tsx b/src/pages/Game/index.tsx
index ef611e87..fcce1f9e 100644
--- a/src/pages/Game/index.tsx
+++ b/src/pages/Game/index.tsx
@@ -114,17 +114,17 @@ const Game = () => {
           </Button>
         </GridItem>
         <GridItem>
-          <ProfileCard userId={gameData.data[0].host}></ProfileCard>
           <ProfileCard userId={gameData.data[0].users[0]}></ProfileCard>
           <ProfileCard userId={gameData.data[0].users[1]}></ProfileCard>
+          <ProfileCard userId={gameData.data[0].users[2]}></ProfileCard>
         </GridItem>
         <GridItem>
-          <GameChat gameId={gameId} />
+          <GameChat gameId={gameId} gameData={gameData.data[0]} />
         </GridItem>
         <GridItem>
-          <ProfileCard userId={gameData.data[0].users[2]}></ProfileCard>
           <ProfileCard userId={gameData.data[0].users[3]}></ProfileCard>
           <ProfileCard userId={gameData.data[0].users[4]}></ProfileCard>
+          <ProfileCard userId={gameData.data[0].users[5]}></ProfileCard>
         </GridItem>
       </Grid>
     </>