Dareka no Mokkin plot
Sayoko is an ordinary housewife. She is married to a kind man, who has a busy office job, and she is the mother of a sweet-natured teenage daughter. Shortly after moving her family to the suburbs, Sayoko steps into a beauty salon to get her hair done. She is helped by the young hairstylist Kaito. He later sends her an e-mail to thank her for the business. When Sayoko responds, a message exchange starts between her and Kaito, which causes a change in Sayoko's behavior. Her husband and daughter notice, but have no idea what's going on. Kaito's girlfriend also wants to know what is going on between him and his new regular customer.