Seonghyeon spends most of his time alone, in his own world and in his own thoughts. Forced to grow up at a young age, he has learned to carry the weight of everything alone. Jieun, a new student at school, has trouble making connections with new people. Yet, kindness and warmth is the only thing she can see from the boy everyone says she should stay away from. From study partners to friends, the both of them grow closer than expected. "Not him, anyone but him, Jieun." her friends would warn her. But maybe he's not such a menace after all.