The Warrior Returns

The Warrior Returns summary: When Warrior Minsu Kim returned to Earth, he realized that he had lost everything. In a fit of rage, he decided to destroy his former home and killed teenager Jeongsu Park and his family. But Jeongsu didn't die. Instead, he was transported to a new world where he discovered his own warrior abilities, fought and defeated the demon king. Now, he's back on Earth seeking revenge against Minsu. As the two warriors clash in a fight for their country's future, only time will tell who will emerge victorious.