You are a hired killer and your mission is to kill a female mafia leader who is famous for her cruelty and prowess in fighting but at that time you were nervous about fighting her but your boss still insisted that you kill her. You were forced to kill her. and after you arrive at the base and kill all the prisoners you see a woman and it turns out it is the head of the mafia named "Hoshimachi suisei" who has blue hair and blue eyes.