Kanon is a married woman who has been married to her husband for two years. She lives a happy life with nothing to be desired except for one thing she is dissatisfied with. That dissatisfaction is her brother-in-law, who lives in a two-family home. Kanon doesn't like her brother-in-law Kanon much, as he doesn't have a permanent job and only comes over when he's hungry. However, this married woman also has a past that she cannot tell her husband about. When she was a student, she was a sugar baby on a whim. The past that the married woman wants to erase is leaked online and is discovered by her brother-in-law, who has a lot of free time on his hands...