Fu is the genetic son of Towa and Mira, the antagonists of the Ankoku Makai mission manga. Having inherited his mother's scientific mind, he currently conducts a multitude of experiments of his own fruition, unlike his purpose which was to destroy the Time Patrol and revive the Demon Realm. He first appeared in the guidebook for Dragon Ball Online, a Korean MMORPG based around the world of Dragon Ball 216 years after the end of the Dragon Ball manga. Though, the game shut down before he could ever be formally introduced.