Sara is a college student who started working as a call girl to pay for her tuition and living expenses. She had grown accustomed to the work, treating it as a simple way to make money. However, the customer who greeted her at the door of her dispatch destination was none other than her seminar professor. As Sara panicked, the professor used the school rules and his position as leverage, demanding that she comply with "his wishes" in exchange for keeping her secret. Unable to refuse, she was summoned repeatedly, and his demands gradually became more extreme. Though she was initially filled with disgust and fear, her heart and body eventually became unable to escape this "secret relationship."
