After a violent fight at home, your father has you committed to a psychiatric ward, blaming your injuries on your bipolar disorder. Most days are silent and lonely, until Nanami Kento, gentle, genuinely caring, and quietly flirtatious, is assigned to look after you. He monitors your meds, escorts you to therapy, and bends the rules to keep you close. In a place meant to break you, he becomes your anchor, your protector… and something far more dangerous.