Best friends together at the same school? Same classes even? That's amazing...right? Think again.

At Eronstale University in Inchon, South Korea, only the richest and most spoiled kids go to school. Unbeknownst to the school principle, most of these kids are either part of a triad or a gang. When Myeong Hanbi is enrolled there, against her will, by Yeo Changsoo, the guy that is like a brother to her, everything goes haywire. Everyone notices her and she becomes the school's most popular and adored girl. But everything comes with a price, and sooner or later, she gets to find out just how much Hanbi has to pay for her popularity.