Bored and with too much time on her hands, Kana quietly relieves her sexual desire through masturbation. However, she is caught in the act by a newly moved-in neighbor. Out of embarrassment, she becomes submissive and allows him to have her body just once, but she becomes obsessed and loses herself in the pleasure of sex for the first time. From that day on, she craves pleasure every day. Having her masochistic tendencies seen through, Kana gives immediate blowjobs to unknown visitors, and eventually, she finds herself wanting creampies while being humiliated, even as a raw cock is slammed into her right beside her sleeping husband.