Man Reincarnated As a Goblin With Increasing levels

Leo is familiar with worldly disasters firsthand, because he has been fighting all his life against a system of predators that has captured the world's population and turned it into puppets for the leaders of humanity. But after the murder, he finds himself in a new world - a world with different but familiar vices. He has to go through a similar road, but this time he can do it with life experience behind him.