That Time I Got Reincarnated as a Slime, like most fantastical anime, features dragons, but in this particular series, they stand at the pinnacle of the food chain as the strongest forces of nature. They are the prized creations of the Creator God, made to be omnipotent and nigh immortal. Even if a True Dragon is killed, they reincarnate elsewhere while retaining their memories, although some might lose a part of their personality.