Zen-O Ichi was too hardcore even for the Yakuza. He's a rabid tiger with a large thorn in his backside, his crime boss once described him. He loved to kill. He loved to terrorize. He loved being feared. Allied Yakuza clans refused to work with him. His own clan kicked him out. He got even by wiping them out in an epic sword fight, in a blinding rain storm, laughing insanely all the while. He became possessed by a frenzy of bloodletting. When he wound up in the Arenas of Phyrra, he knew he had found a home. They say that another of his countrymen, duelist Fujiwara Ken, is completely insane, but Fujiwara has nothing on Zen-O Ichi. This man elevates madness too a whole other level.