Marry to live together with... father-in-law

Rio marries Kazuyuki, the son of Shigeo, her former boss. The relationship between the couple is still very good, and the three live happily under one roof. However, there is a secret that Rio cannot tell her husband: she married him just to live with her father-in-law! Although Rio also likes Kazuyuki, the person she loves is her father-in-law.

However, due to the age difference, she has always suppressed her feelings, telling herself that being close to him is enough. But the time she spends with her father-in-law has made it impossible for Rio to control her emotions anymore; she wants to be loved by him as a woman...