Lee Yoori is Kpop crazy. She in particular is crazy about the new group, EXO. She is also complimented for her boyish looks that she possesses. This comes in handy when she sees a job offering for being the manager for EXO. The rules also sate that she has to be a boy, since the manager would be staying in the same dorms as the group. She decides to go undercover as a boy, thinking it would be easy. But not as easy as she thought with 12 hot boys.