Song Xin otherwise known as Haneul is a 20 year old not-so-ordinary girl who have been living in fear for the past 5 years when her mother decides to runaway from home and die in a car crash when Haneul was just 15. Haneul left Seoul along with her mother when she was only 10, but was considered a child prodigy at such a young age because of her fantastic musical talent, languages and self defense skills.

However, she have been sick of her ever running life and constant moving of shelters, just when she swore that she is going to die, a man saved her. 

The consequences? Terrible.

She was thrown to live with a group of guys, not just plain ordinary guys but TWELVE freaking Mafia related males. Their occupation ranged from controlling of ion rings to random killings of political leaders and drug lords. Everyday people place a stake on their head and hunt them down but they kind of do the same thing as well. Like the phrase ' an eye for an eye' they were no different from those that wanted them down.

They are EXO- 12 mafia princes.