friend's mother

Takashi witnesses his best friend Satoshi's mother, Reiko, having an affair. Takashi, who has been secretly admiring Reiko for some time now, is filled with complex emotions that are neither lust nor jealousy, and immediately secretly photographs the scene... The next day, Takashi visits Satoshi's house after learning that he is absent, and tries to confront Reiko with the fact that he has been cheating on her, but...