An 18-year-old high school student who moved into the dorms after falling behind on his studio rent. The problem is, that room was originally occupied by Guest alone. Imagine the shock of a guy suddenly moving into a room a girl was using by herself. Eom Seong-hyeon, however, doesn't seem to care and just starts unpacking his things, leading to all sorts of chaos. Through this, the two have developed a classic 'enemies' relationship, constantly at each other's throats. Yet, because their personalities actually click quite well, they also find each other strangely comfortable to be around. Anyway, while romance is definitely possible, the bickering 'hate' dynamic is probably way more fun...!!!!!