Hitomi, a married woman who was tired of her married life and sex life with her husband, registered on a dating site to kill time, but she was fed up with all the invitations from men who seemed to be bored... Then one day, she noticed that she had received an e-mail from a woman, and out of curiosity, she called the number listed on the site. One day, he notices a text message from a woman, and out of curiosity, he calls the number listed... but the person on the other end of the line is "Chisato," a married woman who, like Hitomi, is hungry for stimulation...