S1, E1: Yoon Jung Sook is the leader of the Five Princesses and member of the power-wielding Papyoung Yoon family. Feeling stressed after she gets scolded by her teacher, she joins the Five Princesses, and they head to the nightclub to have fun. Kwon Hyuk Jun is a powerful prosecutor and the pride of the Andong Kwon family. He crashes the nightclub to round up some faction members but finds the underaged Jung Sook hiding in the bathroom and takes her into custody.