diff --git a/src/pages/shooter/index.tsx b/src/pages/shooter/index.tsx
index ad9a43a..99fc0de 100644
--- a/src/pages/shooter/index.tsx
+++ b/src/pages/shooter/index.tsx
@@ -57,18 +57,16 @@ const Shooter = () => {
 	useEffect(() => {
 		let intervalId: number | null = null;
 
-		if (!isOpen) {
-			intervalId = window.setInterval(() => {
-				sendData(message_type.status);
-			}, 100);
-		}
+		intervalId = window.setInterval(() => {
+			sendData(message_type.status);
+		}, 100);
 
 		return () => {
 			if (intervalId !== null) {
 				clearInterval(intervalId);
 			}
 		};
-	}, [isOpen, sendData]);
+	}, [sendData]);
 
 	const handleClick = () => {
 		const audio = new Audio("/sound/cork_sound.mp3");
diff --git a/src/pages/yatai/index.module.css b/src/pages/yatai/index.module.css
index 2fd022c..660bbcf 100644
--- a/src/pages/yatai/index.module.css
+++ b/src/pages/yatai/index.module.css
@@ -1,7 +1,22 @@
-.canvas {
+.container {
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+
+.canvas {
+  width: 100%;
+  height: 100%;
+}
+
+.target {
+  position: absolute;
+  z-index: 1;
+  width: 100px;
+  height: 100px;
 }
diff --git a/src/pages/yatai/index.tsx b/src/pages/yatai/index.tsx
index 5dfdd9f..47fa8e2 100644
--- a/src/pages/yatai/index.tsx
+++ b/src/pages/yatai/index.tsx
@@ -1,6 +1,6 @@
 import { Physics, useBox } from "@react-three/cannon";
 import { Canvas, type ThreeElements, useThree } from "@react-three/fiber";
-import { useEffect } from "react";
+import { memo, useEffect, useState } from "react";
 import type {
 	BufferGeometry,
 	Material,
@@ -10,24 +10,14 @@ import type {
 } from "three";
 import { randFloat } from "three/src/math/MathUtils.js";
 import { useSocketRefStore } from "../../store";
+import {
+	type ActionSchema,
+	MessageType,
+	type Target,
+} from "../../type/shooting";
 import styles from "./index.module.css";
 
-function Yatai() {
-	const socketRef = useSocketRefStore((state) => state.socketRef);
-
-	useEffect(() => {
-		const onMessage = (event: MessageEvent) => {
-			const data = JSON.parse(event.data);
-			// サーバーから受け取ったデータを使って処理をする
-			console.log(data);
-		};
-		const currentSocketRef = socketRef?.current;
-		currentSocketRef?.addEventListener("message", onMessage);
-		return () => {
-			currentSocketRef?.removeEventListener("message", onMessage);
-		};
-	}, [socketRef]);
-
+const YataiStage = memo(() => {
 	// 土台
 	const Foundation = (props: ThreeElements["mesh"]) => {
 		const args: [number, number, number] = [10, 2, 2];
@@ -131,6 +121,76 @@ function Yatai() {
 			</Canvas>
 		</div>
 	);
+});
+
+const TargetOverlay = () => {
+	const socketRef = useSocketRefStore((state) => state.socketRef);
+
+	useEffect(() => {
+		const onMessage = (event: MessageEvent) => {
+			const data = JSON.parse(event.data);
+			// サーバーから受け取ったデータを使った処理
+			if (data.message_type === MessageType.Pointer) {
+				// aimTarget(data);
+			}
+			if (data.message_type === MessageType.Action) {
+				shotTarget(data);
+			}
+		};
+		const currentSocketRef = socketRef?.current;
+		currentSocketRef?.addEventListener("message", onMessage);
+		return () => {
+			currentSocketRef?.removeEventListener("message", onMessage);
+		};
+	}, [socketRef]);
+
+	// TODO: これらは一人用,いつかマルチプレイヤー対応する
+	const [aim, setAim] = useState<Target | undefined>(undefined);
+	// TODO: エイム照準の実装
+	// const aimTarget = (data: PointerSchema) => {
+	// 	const x = window.innerWidth * data.target.x + window.innerWidth / 2;
+	// 	const y = window.innerHeight * data.target.y + window.innerHeight / 2;
+	// 	setAim({ x, y });
+	// };
+
+	const [target, setTarget] = useState<Target | undefined>(undefined);
+	const shotTarget = (data: ActionSchema) => {
+		const x = window.innerWidth / 2 + data.target.x * 300;
+		const y = window.innerHeight / 2 + data.target.y * 300;
+		// TODO: エイム実装ができたらここのsetAimは削除する
+		setAim({ x, y });
+		setTarget({ x, y });
+	};
+
+	// DEBUG: 後で消す
+	console.log(target);
+
+	return (
+		<div
+			className={styles.target}
+			style={{
+				left: `${aim?.x}px`,
+				top: `${aim?.y}px`,
+				transform: "translate(-50%, -50%)",
+			}}
+		>
+			<img
+				src="/2D_material/target.webp"
+				alt="照準の表示"
+				width="100%"
+				height="100%"
+			/>
+		</div>
+	);
+};
+
+function Yatai() {
+	return (
+		<div className={styles.container}>
+			<YataiStage />
+			<TargetOverlay />
+		</div>
+	);
 }
 
 export default Yatai;
diff --git a/src/type/shooting.ts b/src/type/shooting.ts
new file mode 100644
index 0000000..f9d3a67
--- /dev/null
+++ b/src/type/shooting.ts
@@ -0,0 +1,28 @@
+export enum MessageType {
+	Pointer = "pointer",
+	Action = "action",
+}
+
+export interface Target {
+	x: number;
+	y: number;
+}
+
+export interface Vector {
+	x: number;
+	y: number;
+	z: number;
+}
+
+export interface PointerSchema {
+	id: string;
+	message_type: MessageType.Pointer;
+	target: Target;
+}
+
+export interface ActionSchema {
+	id: string;
+	message_type: MessageType.Action;
+	target: Target;
+	vector: Vector;
+}