Hongsiyoung, the “Defier of Fate,” has seen the world differently since birth—every person appearing only as a manifestation of sin.

One day, Cha Cheong transfers into Siyoung’s class. Unlike others, Cheong seems to already know about Siyoung’s ability. He claims that the only way to solve Siyoung’s problem is to eliminate the “Sin-Tainted”—those whose accumulated sins have taken form.

Can Siyoung ever break free from the weight of their own karma?