Mao, a female college student from a wealthy family, moved to Tokyo without any particular purpose to go to university because her parents were strict about discipline. She is not particularly struggling financially because her parents send her money, but she wants some extra money to buy clothes and other things, so she starts using a sugar daddy site as a way to kill time and as a part-time job. A rich man she meets there skillfully invites her to his house. She may have been vaguely aware of the man's ulterior motives, but Tamao is hungry for excitement and reveals her lewd true nature, which puts the man to shame...