High school senior Kang Yeeun works at her aunt's bathhouse to earn some extra cash. With her part-time job, aggressive drunkard of a mother, and medical school exams right around the corner, Yeeun spends her breaks downing bottles of soju and her eyes trained on her notes. But when the lanky, tousle-haired, masculine Lee Suho casually walks into the strictly female sauna, Yeeun never expects that she will fall head over heels for his canny neon shirts or corny dirty jokes. However, a mysterious stormy night changes everything. Yeeun abruptly runs away from home, leaving her family in shambles and Suho wondering why he is left in the dark. One faithful evening a year later, he stumbles upon Yeeun's doorstep- only for her to have no recollection of their past relationship. As Yeeun and Suho spend more time together, can Suho uncover what happened that night, or will what's left of their relationship crumble to pieces?
9 parts