Byeongui Mat

A student named Yijun experiences isolation, but things take a strange turn when they are engulfed by unexplained black sludge during class. Another isolated student, Suni, becomes connected to Yijun through a school assignment, sparking the beginnings of a tentative relationship. Their attempts to build a friendship are complicated by the presence of the black substance, which Suni claims to control and which becomes aggressive during moments of stress. The story explores their efforts to navigate the challenges of forming a connection while dealing with the unusual circumstances surrounding them.