CFW is an acronym for Criminal of the Free World. It is a name given to the Deity of Sin, Arfoire who had existed in Gamindustri since ancient times. CFW Arfoire had once tried to terminate all of Gamindustri with her tremendous power. However, Arfoire and her dark ambitions were sealed away by four former CPUs of Gamindustri.
- CFW in reality stands for 'Custom Firmware' which is software altered by a hacker to exploit or harm the machine and/or its user. It is usually claimed as bad.