Mia is like an unwanted child brought to the world. No one appeciated her except for Boss and her stepbrother, Myungsoo. One day, she is assigned to kill three members of the famous idol group, Super Junior. At first it seemed to be an easy assignment but little did she know how hard the mission actually was. 

KYUHYUNis a back street loner until he finds his true identity in a parallel universe. SEOHYUNis the result of a failure experiment that awaits a destined death.