A married woman who ran into an affair because of her husband's cheating. Her husband is the owner of a beauty salon, and she is said to be in contact with many female customers. Even before she got married, Shinomiya seemed worried that her husband would cheat on female customers and staff, but she said that in the end she was not cheated on. But she finds an unused toothbrush when she is cleaning her room one day. And the name of the love hotel was engraved on the wrapping paper of the toothbrush...
