A technical shadow wielder who can pressure his opponent with simultaneous attacks.
The former leader of the Assassin’s Guild, now revived after once experiencing death.
Before his resurrection, he was a calm and thoughtful person. However, after all he went through, he ended up unable to feel an emotional response to anything.
He no longer finds significance in anything in his life, be it good or bad, nor can he feel joy or anger.
The closest he gets to feeling emotion would be his feelings for Millia.
Zato-one was introduced in the first guilty gear game, he uses his shadow as a weapon because it is being haunted by the demon “eddie”, zato lost his sight after an accident and is guided by his shadow in combat.