How to modify the role name of Happy Landlord?

Hello, my friend, this question is very simple. I'm an old hand at games. Let me teach you. After you log in to the game hall, you will find a photo of your little head in the upper right corner of the hall. See, click on it, my items will appear, my salary and revised data will appear, you can start with the name inside. It's simple. You will succeed if you do what I do, and a good name will let you play.