An assassin with multiple bodies; by changing his mechanical hand, he can switch which body he uses (Tsubame's hand is red). He has white hair and glasses, and wears a suit. Tsubame's specialty is hand-to-hand combat, but he also wields firearms. He works for the organization "Shinapz".
He was raised as an assassin by "Theme Park", but left after an incredibly difficult mission that he was forced into doing. In the past, he had black hair and didn't wear glasses.