—In which Choi Sooyoung, a clumsy and weird girl, begins working as a cop. And she has to go undercover as a gang member, to catch Seoul's most wanted two gangs—B.A.P and EXO.

Their meeting was a chance of luck, if his friend hadn't forgotten to bring his phone and forget the address to where they were supposed to meet, his friend would never have went to the payphone booth to call his best friend. And if his friend wasn't that forgetful, he would never have left the slip of paper with his phone number written on it. If her boyfriend didn't break up with her on t