To attend a cram school intensive course, Ryoji stays at his sister's and brother-in-law Kanojo Aida's house for a month. In reality, Asami has been in a physical relationship with Ryoji for over a year. Asami, at her husband's request, takes care of various things for Ryoji, and their relationship deepens further. She feels a maternal-like emotion towards her brother-in-law and can't refuse him. Despite her rationality, this married woman continues the relationship. Directed by Kenzo Nagira.
