Yui, the daughter of a company president, is a female student attending a school for girls. She grew up in a very wealthy private life, knowing neither filth nor hardship. One day, her father's servant, Zuo Ci, attacks and kidnaps Yui. Zuo Ci, who had been making repeated mistakes at work, was finally fired, and to get revenge, he set his sights on Yui. Zuo Ci also offers Yui to the yakuza who owe him money...