The Warrior Returns

Synopsis

After Saving one world, Warrior Kim Min-Su returns to Earth only to find that he's lost everything... So he decides to destroy the world he used to call home. In a 3-week-long rampage, he encountered a teenager name Park Jeong-Su and kills him along the rest of his family. But instead of dying normally, jeongsu is transported to another world, where he finds that he's now a warrior himself. After killing the Demon lord of his alternate world and honing his skills as a warrior, Jeongsu returns to Earth, hell-bent on revenge against Minsu. As the two warriors fight with the fate of their country in the balance, who will emerge victorious?