Sumire is a married woman who has been a hairdresser for 10 years. In her third year, she married Nishimura, who was the manager at the time, and now they run the salon together. Although she had a good relationship with her husband, they only talked about work, both at the salon and at home, and gradually they became sexless... Every night, after her husband had fallen asleep, she would calm her excitement by herself, but she had reached her limit. Then, she met a customer, Yuki, who came to the salon. They had a common topic of conversation, and Sumire, who was her type, ended up playing a prank on him while shampooing...