Kotone Fuyuai returns to Vinyl Bookstore after a long absence. She is forcibly taken by a dangerous man and locked inside a closet, where she is turned into a living sex toy. When the man returns home, he drags her out of the cramped closet and immediately forces her into an intense, humiliating deep throat session. Her entire body is made to kiss his sweaty skin, and without any contraception, his bare cock brutally penetrates deep into her vagina. Desperate to go home, she obediently performs every act he demands, her pitiful devotion only fueling his sadistic pleasure as he smirks, planning to keep her locked in the closet and break her in for the foreseeable future.