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.

Determined to get married to Hyuk Jun, even if others say she’s not a good enough student for him, Jung Sook goes to visit from time to time to win his heart. Meanwhile, together with the Five Princesses, she battles with a lady who’s circling near Hyuk Joon. Also, she breaks into Hyuk Jun’s home to clean and do his dishes, leaving clues that she was there.

Having decided on marriage, Hyuk Jun’s sister Sun Ah slaps and scolds her. Meanwhile, while attending an engagement party, Jung Sook is trapped into a predicament involving the high-class women guests there.

Jung Sook feels stunned about how she has to bow to many of the elders of the head family. Nervous about the wedding night, Jung Sook is deflated that Hyuk Joon has gone to Seoul after hearing that the head of the Jaegal faction has been caught.

Jung Sook is preparing for the first wedding night with seductive music and sexy clothes, but Hyuk Joon’s coworkers drag him to a bachelor party. Tired from waiting, Jung Sook drinks alone and tries to seduce Hyuk Joon as she thinks he’s back home, but it turns out to be Sun Ah, who then protests that this is the marriage that Hyuk Joon wanted. As Jung Sook goes to find Hyuk Joon to ask for forgiveness, she boils with anger after seeing him trying to console an unfamiliar woman.

Hyuk Joon is upset when he sees his first love Ga Young. The Five Princesses warn Jung Sook to watch over her husband carefully. As Hyuk Joon is drunk and singing, Jung Sook covers his mouth as she drags him home. Asking what happened, Hyuk Joon gets angry and tells her to mind her own business. Ga Young can’t hide her anger after seeing Jong Chan appear in court instead of Hyuk Joon and heads to the newlyweds’ home.