Ayano, who is known in the neighborhood as a good wife and mother, has fallen into a relationship with her only son. At first, she just wanted to get back at her husband for not paying her any attention. But now, she loves her son more than her husband. She wants to be alone with her son and have sex with him. Hiding her Kokoro, Ayano sees her husband off at the front door again today... "Have a nice day, honey." (Please... come home late again today...)