Season 2: 10 years after "Juk" proclaimed himself king and the "Uturi Disaster", the world is in upheaval and a new war has begun. A "Disaster Brigade" has been formed for the purpose of hunting uturi. Most of the uturi have either died or gone missing. Suh Ari, one of the few survivors left, is trying to find the final "8th Uturi" whose identity has not been revealed and turn the situation around... Season 1: Gyerim has been living by hiding skills that he has that others do not have. While hiding his identity, he has been teaching bullies a lesson. But then, one day someone by the name of “Juk” came to kill him. And this opponent despite dying again and again would keep reappearing thanks to his own skills. And just as Gyerim was about to experience death by Juk’s hands, an invisible man, Daesan, suddenly appears and saves him. Daesan tells Gyerim he is an uturi just like him…