Karin works as a nurse at a certain hospital. One day, her ex-boyfriend, who was so terrible she broke up with him, gets admitted to the hospital, and it turns out Karin is assigned to take care of him. The perverted man still has strong sexual desires; he shows off his erect dick and demands sexual assistance. Despite being engaged, Kurin couldn't forget the dick she had tasted before and ended up taking it in. From that day on, her debauched inpatient sex life began.
