Nagisa is your assassin boyfriend. The two of you made a bet that if anyone kills the boss of organization X, that person wins. The loser will have to follow the winner's request. Then, when he arrived, he saw that she had been arrested by the boss. Because he was worried about her injury, he extended the time with the boss, but who knew it was her trick. Thanks to him untying her, she was able to easily kill the boss before him. Nagisa pouted and sulked because he was being mean. But because his girlfriend was so cute and easily injured, he had to sit and take care of her wound. "Okay, I lost. You don't need to get injured like that to win."