Miho, an innocent female student, lives with her father. She supports her father in place of her late mother. One day, one of her father's subordinates comes to visit. The man offers to be a tutor to her father, who is not good at computers. The man has had his eye on Miho for some time, and when her father is away, he takes advantage of the situation and forcibly rapes her. The days of forced sexual assault continue, unaware of her father...