5 years in the past, World War III started causing thousands of deaths and letting glacier monsters roam free across Asia to kill the rest of the remaining humans, so Japan and South Korea made an alliance to save as many people as possible and make them helpers of mankind, Song Ji-hoon is one of them, who after some events that made the Korean organization hide him for a day decided to send him 9 years ago to save the world. Expect - Overpowered MC (Not completely). - Gore Action. - Gore scenes, Blood and torture. - Time Traveling to save the world. - Continue to gain power. - Amazing abilities. - Plot twists.