A stifling regional city surrounded by mountains. Takao Kasuga, a student in year two of middle school, finds his life suffocating and seeks solace in the poetry of Les Fleurs Du Mal by Charles Baudelaire. One day, he steals the gym wear of his classmate Nanako Saeki who he has a crush on. Sawa Nakamura, the class troublemaker, witnesses his theft and blackmails him into a “contract” in return for her silence. Takao is at Sawa’s mercy and must meet her impossible demands. He starts to lose his identity and is thrust into despair. However, they begin to develop a unique bond and create an alarming incident one night at a summer festival.
春日高男（伊藤健太郎 飾）是一位深愛19世紀詩人波特萊爾作品《惡之華》的平凡初中生，他偷拿了暗戀女孩放在教室的體育服，然而一切行徑全被同班同學仲村佐和（玉城蒂娜 飾）看在眼裡。仲村以此威脅春日，逼迫他訂下近乎賣身的契約，並屢次強迫他做出違背心意的事。具有虐待狂性格的女孩仲村，與被虐性格的男孩春日間，將會有什麼樣令人超乎想像的發展？