Heroic Fantasy in Another World

How could an otaku be like a creature in a pond? He turned into a dragon when he first arrived in another world? The bastard's energy circled the hills, and the roar of cowhide shook the sky. Chatting and laughing, inviting friends, charging into battle with superpowers, When the wine is in full swing, Lord Don't laugh, you are a strong man who will tear the world apart!