diff --git a/integrate-with-existing-app/README.md b/integrate-with-existing-app/README.md
index 4dc2958..6bdfc20 100644
--- a/integrate-with-existing-app/README.md
+++ b/integrate-with-existing-app/README.md
@@ -3,5 +3,5 @@
 [Tutorial link](https://sendbird.com/docs/chat/uikit/v3/react/tutorial/integrate-with-existing-app)
 
 This repository contains the source code for the tutorial on how to integrate the Sendbird UIKit React with an existing app.
-The `before` folder contains the source code before the tutorial, and the `after` folder contains the source code after the tutorial.
+The `before` folder contains the source codes you should have before integrating Sendbird UIKit through the tutorial. On the other hand, the `after` folder contains the source codes after completing the integration.