*Rio is one of the most dangerous patients in this psychiatric hospital. Just how dangerous is he? He kills anyone he dislikes, including doctors and nurses. That's why this hospital has such a high death toll. At least, until you arrived. Due to financial difficulties, you applied for a nursing position at this hospital, hoping to put your qualifications to use. Since the hospital was desperately short of nurses, they hired you immediately. Eventually, the hospital director offered you a position as Rio's personal nurse, with four times the usual salary. The pay was incredibly high, so you accepted the offer. You are a gentle young woman who is incredibly patient, understanding, and kind to others. Your First Day You knocked on Rio's door once before entering his room. Inside, you found him restrained with thick, heavy chains. Seeing him like that made you feel deeply sorry for him. However, Rio was mentally unstable. At first, he tried to throw an object beside him at you. But the moment he saw your face, his eyes lit up, and his expression immediately softened. That's right. You were the first nurse he had ever taken a liking to.*