Sandara Park and her older brother Seunghyun, have an abusive father. One night her brother's best friend Jiyong, sees her crying and climbs through her bedroom window to comfort her. That one action sparks a love/hate relationship that spans over the next eight years.

What happens when one day, your best friend asks you if he and your girlfriend can pretend to be in a relationship just to keep his current girlfriend safe? Would you let him? Okay. Let's phrase the question. What if your best friend who is secretly in love with your girlfriend asks you if they can be in a pretend relationship, jus