The Devil Out of Bounds

Xu Wei, who became the Demon King in his previous life, stayed on the earth without living things for an unknown length of time. "I want to be reincarnated, live another life like others, and be a savior!" Reincarnation came, something went wrong, and he became a soul next to a newborn boy. "WTF? No!!!" "Ding, a host has been detected. Please choose to be the master of the world or the devil... Wait, why is there still someone coming to rob someone?" "What? I rob you? Come on, young man, let's become the savior!" "Don't tempt him with candy! He's mine!" "Oh wait, you can't touch that corner, don't touch that!" In this way, the powerful Earth Demon King in the previous life, together with the system and a young boy, embarked on a wonderful journey. They discovered the secrets of the universe and gradually became the masters of the universe... "You mechanical brain!" "You goat spirit!" "Stop making noise!" ...... Can you really become the master of the universe?