[First production bonus] Enclosed "handwritten confession of the wife who committed a sin" * It will end as soon as it runs out. On her way home from jogging, Rin meets a student in the same apartment. Students are stunned by her wonderful beauty and body. Seeing him like that, "Rin" gets excited. - Delusion and excitement amplify day by day, and finally bring her home to acts. - She turns into a female and repeats sexual acts with a young of a student, but the man who became serious demands a divorce from "Rin". The lives of the three of them, including her husband, go crazy.