The Secret Game of the Immoral Wife.

From the first moment, Haruo saw Makoto in a busy street crossing, it was love at first sight. He spent five years stalking her and looking at her in her house through binoculars from his apartment across the street. Watching Makoto’s seemingly perfect life with her husband became a daily habit for him. He even mastered lip-reading in order to act out conversations with her. One day. Haruo witnesses Makoto’s husband, Mikiya, having sex with another woman. To expose her cheating husband’s lies, Haruo takes photos of the incident and sends them to Makoto, along with a letter, However, when she receives the photos, she throws them away without any reaction, and their normal husband-and-wife routine resumes as if nothing happened. [Exists in 2 versions: the original R18 version, and the R15 edit version]