At a birthday party, a sex video is filmed without consent and Ren Li-cha is the girl in the video. The clip circulates among the students and Li-cha is mocked and bullied as a result. Wu Yun-heng, a transfer student, went to the party with Li-cha. As she cannot stand how much Li-cha is suffering'  she is determined to find out about the truth behind the incident, fighting for her best friend. However, as she gets closer to the truth, she is about to shatter the peace in school.

Girl's Revenge

An ordinary day in an ordinary campus, a girl who was loved by everyone killed herself. Everyone is asking why, but no one knows the truth, except these three: a good student, a bad student, and a weird student. For they know the truth of this incident, they decide to do something unordinary for her, as a revenge. They are the partners in crime. However, with the discovery of the girl’s secret diary, we are about to journey back to our high school lives. As an old saying goes, “High school never ends!”