With the sudden outbreak of a deadly virus, humanity is thrown into chaos. The few who survive it are either transformed into horrible cannibalistic creatures called "Worms," or super-humans called "Anomalies." Haru, a young Anomaly student at New Seoul High School, dreams of joining the prestigious "ISO"—an organization formed to fight the war against this virus. But the future in store for him is nothing like he imagined... (Source: Tappytoon)