The flatmate desperately needs money, so when the opportunity arises to offer constant sex to her classmate in exchange for paying the rent, she jumps at the chance. He agrees, not realizing the extent of her desperation or the degrading acts she's willing to perform to survive. The scenes progress from vanilla sex to explicit acts, with the girl always eager to please and the guy taking advantage of her situation. As time goes on, the girl becomes more submissive, losing her sense of self-worth as she continues to trade her body for a roof over her head. The story ends with both parties unhappy but trapped in their twisted arrangement due to their own choices.