College student Murata living alone suffers from a designated intractable disease causing paralysis in both hands and receives home care. The dispatched caregiver is a beautiful but extremely unfriendly nurse Oshikawa. A one-week stay-in care begins. Murata's condition causes severe headaches if he doesn't ejaculate once per hour. Due to side effects, he can't use his hands and can't masturbate. Upon hearing the situation, Oshikawa remains expressionless and proceeds calmly