tough girls sweetheart

Hidden famous gangster's daughter? Check.
Trained by top gangsters who are your uncles and brothers? Check.
Being an emotionless and cold ice Queen in school? Check.
Falling in love with the rich nerd? Uh.... ERROR!

Kwon Haeul. A tough girl who concealed her true identity due to an old enemy of her father. Supposedly dead at the age of 8, now 11 years had passed and she is living with the name Lee Haeul, a cousin of the late Kwon Haeul. But of course not many even knew she was connected to the Kwons as she was never see with a Kwon, neither did she drive luxurious sports car to school like all the gangster's sons.What if one day, her identity was announced.... together with her engagement with Kim Joonmyun a.k.a Suho of Exo. But wait.... Isn't Kim Joonmyun the nerd? Why is he her future husband? Why didn't Haeul reject the idea of engaging with Suho?