Jean Marais Dermaille
is the heir to Juneau and behind the attacks on the school turning the students into vampires, including Nanami and Hikosaka. He changed as many people as he could to vampires as a way in serving Mina, believing he was making an army to create a new world for Vampires. He shows no respect to his father, believing he is a person of the past. He too also shows a racist hatred to Werewolves, wishing to have them exterminated in the new vampire world ruled by the "young".