Yu is dating Tatsuya, the manager of the store where she works, and they promised each other a future together.
However, Yu is also struggling financially and has to support her family. And so, she does a secret gig at night to support her family.
In one of her outings, she encounters an unsavory character who rapes her and, even worse, begins to blackmail her.
Initially, Yu endures the whole thing with the idea of protecting Tatsuya. But gradually, she falls into pleasure, and Tetsuya is not so important anymore, much to his disgrace.