Rina, a caregiver, had a fiancé, Shinji, who lived with her grandfather, Shuzo. Wanting to help Shinji take care of his grandfather while working, Rina offers to take care of Shuzo. However, contrary to such thoughts, Shuzo visits Rina with merciless sexual harassment! Shuzo caresses the nasty body of a beautiful girl as she desires. Rina resists a little, but gradually begins to accept Shuzo without rejecting her late grandfather. And the distorted sexuality of Rina and the old man