Natsume Shouko is an ordinary housewife who lives with her husband, Takashi, their son, Yuu, and daughter, Mika. She feels bored with her monotonous life. One day, she discovers a website where people with SM interests confess their experiences. Shouko impulsively posts a message on the site, asking for a "master" to give her orders. She receives a response instructing her to go panty-less to the park and piss on a slide at midnight. Shouko, feeling a mix of shock and arousal, actually goes through with it. Her life spirals into a series of naughty escapades as she becomes more involved with the website and its community.