'Hikaru', who aims to be a caregiver, is asked by her boyfriend to take care of her father, 'Yasu Grandpa'. Despite her reluctance, she accepts it because she loves him, but what awaits her there is not an old man who should need nursing care, but a perverted old man who repeatedly sexually harasses her. Will Hikaru, who has no escape, continue to be a sex volunteer called nursing care?
