Wonwoo is apathetic. He doesn't care most of the time. Well, except for that one time. But that's for a different story to tell. This time, it's his older sister Seulgi giving him migraines to add to his unexciting teenage life. Add in some teenage angst, a crazy older sister, and a bunch of good-for-nothing friends, Wonwoo is out to set things straight -not that he or his sister are- once and for all.