In View Messages, search for the name of the person you wrote it to.

Then find the one you wrote, there is a blue font for deletion underneath, and a switch for whether it is anonymous or not.

Second, how to use

First, we open Hawthorn Island, in the main interface, click on write a message.

Enter the message interface, enter your friend's name, then fill in the content of the message, after checking the completion of filling in the message once again, you can click submit the message. When you see this interface, you will be able to submit the message successfully. Then go back to the main interface, click to see the message.

My name, enter the name that you have just filled in the message, and click View Message. After that, you can see the content of the message at the bottom.