Manae was troubled because her stepson Tetsu would not open up to her. Then, Tetsu gets involved in an assault incident. Pale-faced Manae begs the teacher who came for a home visit not to expel Tetsu, but... she is asked to offer her body in exchange. As Manae sinks into despair, even worse news arrives. "Auntie, you and the teacher... did something dirty yesterday, right?" It turns out that Tetsu's friend had recorded the entire incident with the teacher...
