When Myungsoo transferred to a new school, he didn't know that his dream of a peaceful student life would be completely shattered by a certain Lee Sungjong, the maknae of a popular idol group Fedora. Not only is Sungjong nothing like Myungsoo had imagined, but he also seems incapable of not sticking his nose in Myungsoo's business. Add to that Myungsoo's nemesis Lee Sungyeol, his dictator-like sister Kim Kyungran, his ultimate