Knowing her husband was cheating, the wife let her father-in-law have sex to... take revenge

When she was a student, Aimi once fell on her way home, and she was taken home and bandaged by Mr. Toru. Mr. Toru was a very scary teacher at school, and Aimi was surprised to see his gentle and kind side. This was also the first time Aimi met Hiroyuki, Mr. Toru's son.

Later, Aimi married Hiroyuki and moved in with her father-in-law, Toru. Recently, Hiroyuki has been coming home late from work, and Aimi discovered that her husband was cheating on her with another woman. Since then, she has grown increasingly distant from her husband and closer to her father-in-law. That affection has grown day by day, and today Aimi can no longer control herself. She no longer wants to care about her husband; she just wants to be with her father-in-law, who is always gentle and caring towards her...