Misaki Tomoe is a lonely student at the Keiai School of Fine Arts who struggles with deep feelings of inadequacy and a lack of affection from her parents. She becomes infatuated with the strict and seemingly perfect student representative, Komatsusaki Rie, eventually confessing a hidden desire to be dominated by her. After being taken to a private villa, Tomoe discovers that Rie's polished exterior masks her own secret passions, leading the two to form a bond through their shared interest in S&M.
After a tense first encounter, new teacher Kinoshita Eichi becomes concerned for the melancholic Amy. As he attempts to support her, Amy reveals the painful secret of her forbidden love for her step-brother and the deep loneliness that led her into a complicated relationship with another man. Moved by her vulnerability, Kinoshita vows to protect her from her own sorrow.