Protect the World's Nuclear Peace from the Fusion of the Magic Dragon

"I curse you demon to be judged by the goddess's fiery sun." William: "I'm sorry, I've been through this before." "You bastard is such a psychopath." William: "You have my experience and you are more perverted than me." "You are a devil whose mind has been swallowed by power." William: "Can you please give me a little more power so that my mind can be swallowed cleanly?" For all the slurs mentioned above, William admits that they are a little too much, a little too conservative. But who could know that he just wanted to be a good young man who protects world peace at first? It is this weird world that makes people no longer human, demons no longer demons, and gods no longer gods. In this case, he will become a staunch implementer of world nuclear peace! [Easy, complete work, immortal little strongman, fake invincibility, ruthless thieves in the background, making things difficult for everyone equally]