Kamui, who has lost his memory regarding anything related to Aichi, is revealed after an intra-shop tournament that he feels like something's missing; he then decides he needs a challenging fight after cardfighting many "weak players" after following advice from Gouki. Gouki then tells him of a really strong cardfighter, Kai Toshiki, stating that he has never won against him before. Kamui then heads to Hitsue High to fight Kai, only for Naoki to fight him instead after Kamui bad-mouths Aichi, whom he has no memory of. During the cardfight Kamui began to have fuzzy images of Aichi after Naoki tried to call out to him several times. Still, it was only until Naoki activates his Legion and defeats Kamui does he remember who Aichi is.