Junwoo lives the life of a hikikomori, confined to his room and shunning the outside world. His feelings for Hanbit, his neighbor, are the only source of brightness that can penetrate his darkness. But when Hanbit goes overseas to study, Junwoo must find a roommate to afford his expenses. Will this shake-up to his routine be the catalyst for Junwoo to break out of his self-imposed isolation?