The series follows Anri, a university student who presents a facade of pure innocence but secretly harbors a deep-seated, kinky desire for cosplay and sexual submission. Her dormant perversions are awakened when she meets a photographer named Kashiwagi, who quickly uncovers her secret lust. The story arc details Anri's complete sexual corruption. It begins with her shyly trying on a cute outfit, only for Kashiwagi to coax her into increasingly lewd and revealing costumes. He introduces her to the thrill of exhibitionism, fucking her raw while his camera captures every moment of her degradation. Each episode sees Anri shedding more of her inhibitions, her initial reluctance melting away into shameless ecstasy. She is relentlessly drilled in various humiliating outfits—from a schoolgirl uniform to a tight bunny suit—her tight, wet pussy and ass stretched and pounded by Kashiwagi's thick cock. Anri's journey culminates in her total transformation from a pure-kei girl into a depraved cosplay slut who craves the humiliation and cums uncontrollably at the thought of being exposed and used like a fuck-toy for his lens.