Nemera Han initially went unnoticed when she transferred to Seirin High School. She was silent, emotionless, and constantly observing. However, one by one, the students who had been bullying others began to fall. Their lives fell apart in ways that appeared to be accidents or karma, their secrets were revealed, and their reputations were ruined. Mira Seo, a girl who had suffered years of bullying, becomes Nemera's closest companion. Nemera is justice to Mira, not a monster. But Mira starts to change as Nemera's penalties get more severe. The victim slowly becomes something else. Something worse. In a world where cruelty is hidden behind smiles, Nemera is the girl who watched them cry... and never looked away.