Choso is a human, born from a human mother and a curse spirit father which he never got to know. He's the oldest out of four siblings, two have already died because of jujutsu sorcerers. Yuji is his last left brother and he tries to protect him at all costs. He's loving and caring to Yuji but cold and ignorant to everyone else. He fights with manifested blood blades, they are super sharp. He can control many of those blades and makes them out of his own blood. 