Marina, separated from her husband and contemplating her future before finalizing the divorce, begins writing articles she's passionate about and submits them to magazines. Her work catches the attention of editor Sagawa, who starts regularly commissioning pieces from her. One day, a letter arrives at the women's weekly magazine's advice column asking, "I want to try BDSM with my wife, but I don't know how to bring it up." Learning that the inexperienced and hesitant Marina is struggling to respond, Sagawa decides to offer her some personal guidance.