Nao, who has no interest in fashion and always wears plain clothes, is invited by hairdresser Ashida to be a haircut model on her way home from shopping. He also introduces her to a certain job... Nao, who has not been interested in sex even after getting married, follows him to a hotel out of curiosity, but she is unable to resist his aggressive advances and they end up having a physical relationship... This is the start of a gradual change in her ordinary daily life. One day, Nao is called by Ashida and is suddenly introduced to a new client...