I'm Really Not a Goblin

Traveling through the goblins, the person assigned by the clan leader did not enjoy it, and was almost killed by an adventurer. Fortunately, he had awakened the "Demon King" system, but before he reached the peak of his life, Chen Yu discovered that there was more than one person who could travel through time. Slime that eats the dragon. The skeleton king who starts at full level. Wow looking spider. Or a brave man with a shield that defies heaven's attributes …