As a new semester begins, everyone is filled with excitement and eagerness to make new friends. In the midst of it all, Nam Soomin, who claims to be an outsider, strives to quietly go about his business without socializing with anyone. However, despite his strong desire to keep to himself, he finds himself deeply involved with Lee Jaeha, who is the embodiment of an extrovert, and also his roommate, in a surprisingly complex situation. "Nam Soomin! Starting now, the 'I don't care' attitude is strictly off-limits!"