Little is known about him so far. His first appearance is at Card Shop PSY and he fights another new character named Daigo who uses the Royal Paladin clan, his team and intentions are currently unknown. It is said that Leon shall be one of the main rivals of Q4. Leon will be participating in VF Circuit in Hong Kong Stage at final. His team, Team Dreadnoughts will be versus Team Q4 in the final battle. It was revealed he has PSY Qualia in episode 90 during his battle with Sendou Aichi and Katsuragi Kamui.