University student Lee Seong-ae sets out to find a fake student who is impersonating her and causing her harm. As the investigation progresses, men who have been victimized by the fake student begin to reveal their misfortunes, and Seong-ae starts to feel pity for her. She is shocked to discover that the arrested fake student is Mi-ok, a former classmate who admired her in high school. Mi-ok, who had given up on college due to family circumstances and fallen into despair, became a fake student after her boyfriend got engaged to a beautiful university student and abandoned her. She then transformed into Seong-ae, the object of her admiration, and began to take revenge on men who indiscriminately approached female students from top universities.