Rin, the daughter of a wealthy family in a certain prefecture, is a female college student attending a prestigious girls' university. She grew up in a very wealthy private life, knowing neither filth nor hardship. One day, Machida, a man who is a client of her father's company, attacks and kidnaps Rin. Machida, who had been making repeated mistakes in the work he had received from his father, finally had the business partnership cut off, and to get revenge, he set his sights on Rin. Machida also offers Rin to the yakuza who owe him money...