Yiming Connect has some secrets endpoints for registering and login in an account.
Registering
To register you need to go on https://yimingzz.net/register and create an account.
NOTE: You will need to bypass the CORS policy in order to register.
Verify
After registering, you will see a 404 page. There is a way to bypass this, search in your email an email with a verification code. There is a URL underneath, click it. After that, you successfully verified!
Login
To login you have to send a POST request to an endpoint: https://pc.yimingzz.net/user/login with the following JSON (make sure to replace the fields labeled "REPLACE"):
{"username":"REPLACE","password":"REPLACE"}
The response from the server will be a Bearer token. You can use this token for user-needed actions.