diff --git a/README.md b/README.md
index 856edfe..a106b1d 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 ---
 
-##### <center>❓ Question:　Join our [Discord community](https://discord.gg/evex)</center>
+##### <center>❓ Question: Join our [Discord community](https://discord.gg/evex)</center>
 ##### <center>📚 Documentation: [Check out the full documentation](https://linejs.evex.land)</center>
 
 ---
diff --git a/packages/client/clients/internal/square-client.ts b/packages/client/clients/internal/square-client.ts
index 6105867..2be1a87 100644
--- a/packages/client/clients/internal/square-client.ts
+++ b/packages/client/clients/internal/square-client.ts
@@ -211,6 +211,22 @@ export class SquareClient extends LiffClient {
 		);
 	}
 
+	/**
+	 * @description Find square by Emid.
+	 */
+	public async findSquareByEmid(options: {
+		emid: string;
+	}): Promise<LINETypes.SquareChat> { // ...???
+		const { emid } = { ...options };
+		return await this.request(
+			[[11, 1, emid]],
+			"findSquareByEmid",
+			this.SquareService_PROTOCOL_TYPE,
+			true,
+			this.SquareService_API_PATH,
+		);
+	}
+
 	/**
 	 * @description Fetch square events.
 	 */
@@ -312,8 +328,9 @@ export class SquareClient extends LiffClient {
 			message.push([11, 21, relatedMessageId], [8, 22, 3], [8, 24, 2]);
 		}
 
-		const { promise, resolve } =
-			Promise.withResolvers<LINETypes.SendMessageResponse>();
+		const { promise, resolve } = Promise.withResolvers<
+			LINETypes.SendMessageResponse
+		>();
 
 		const request = async () => {
 			resolve(