Fu is a demon son of Towa and Mira. First appearing as a baby in the series, Fu grew up to be smart and confident. Instead of fighting though, he prefers to experiment. His favorite experiment is to alter through time.
The thing about Fu is that when he does his experiments, he first does it for his own benefit then does it for the benefit of others.
Though sometimes, he will go too far and cause harm to others. Later on, he is declared the new Dark King of the Demon Realm.
