If you want to quick start in Flyff Legacy, you can use a Guest login to create a character without having to login with Facebook or Google. No email or login information will be required, however a Guest login has 2 main drawbacks:
  • the Guest account is linked to the device, you won't find your character if you change it.
  • the Guest account will be lost if you uninstall / re-install Flyff Legacy

It is best to link your account to either Facebook or Google from the in-game Settings, so that you don't face the risk losing your characters.
The process is as follows:
Enter Flyff Legacy -> Guest Login -> Settings -> Link Account -> Facebook or Google Login.

Note: When you link your account, you should use a Facebook or Google account which has never been used in Flyff Legacy before!