In the decadent 1990s, Yuki Ogihara lives an unremarkable youth while harboring a secret love for the delinquent girl Saiko Samejima. Yuki's intense longing sometimes manifests as licentious self-gratification, eventually evolving into fantasies of being defiled together with Samejima. When Yuki hears rumors that Samejima will sleep with anyone for money, she becomes consumed by jealousy—desperate to know everything about Samejima and to possess her completely. Meanwhile, Samejima finds herself torn between Yuki's idealized image of her and the reality of who she truly is. The story unfolds against a high school backdrop, tracing the tension between obsession and identity as Yuki's pursuit clashes with the truth of Samejima's life, a journey described as a pure love story set in a decadent era.