Introduced as someone who in the beginning was timid and shy. Aichi gradually gains the confidence in himself and his deck in order to fight against the best Vanguard Players and in turn meets new friends and allies along with new rivals. Aichi uses a Royal Paladin Deck. His strongest cards are Blaster Blade, Alfred "The King of Knights", Soul Saver Dragon, and Majesty Lord Blaster. In season 2, Aichi's deck changes into Gold Paladin clan.