The ultimate human being! No one can top his peak performance. Zaiden is the leader of the Zaiden Squad, one of the strongest squads utilized by the Crescent Hunters. Only once things get bad, does Zaiden hit the floor. He is charismatic, kind, and never pushy. He is the burst of light that everyone needs, even if Erina doesn't see it.

He is close to his rival, Sakurai, only wanting the best for him, even if Sakurai does horrible things at times. Zaiden is very strong, but easily manipulatable.