Yu-Gi-Oh! Duel Monsters: Season 1, Episode 152

1 - 152: Mai Who Fell Into Darkness

Can this be?! Mai has joined the enemy! Wielding the sinister sorcery of Seal of Orichalcos, Mai unequivocally calculates to trap Jonouchi’s soul for Dartz’s malevolent master plan! Is she brainwashed, or is there some deeper reason for her unexpected transformation?