Nao, who has no interest in fashion and always wears plain clothes, is invited by hairstylist Ashida to have a haircut on her way home from shopping. - Furthermore, when he introduces me to a certain job... - Nao, who was ignorant of sex even after marriage, goes to a hotel out of curiosity, but she cannot resist his forceful approach and they end up having a physical relationship. - As a result, her ordinary daily life gradually changed. - One day, Nao is called by Ashida and is suddenly introduced to a new customer...