A kid from Earth wakes up to find himself stuck in the body of a fictional teenage boy with an ability that turns his life into a video game and foreknowledge of events to come. What could possibly go wrong? I'll tell you what, shit will really go wrong. Can you imagine the shit that will happen if a teenage boy, who has liked anime, read light-novels, novels, manga, and fanfictions, has been given that kind of ability? I guess you can. But, let's see if you're guess is right.

He is not the welder of the heavenly dragon Ddraig, but the welder of the heavenly emperor god of the ocean. He is not a devil he is the leviathan, and a MMA campion that will rise to bring glory to the beast name. But he is also the lost prince of Atlantis who is the chosen one to take the trident of the king of Atlantis. And his name is king leviathan