My beloved wife Itsuki returns to college to earn a qualification. She is still young and beautiful, so a photo of her laughing with a handsome guy at a seminar party makes me nervous. I reassure myself that she prefers sincere men and that nobody would casually touch a married woman. But she starts coming home later every day, and the truth I cannot bear to believe is that she has been skipping class to let a younger man creampie her again and again.