e mechas, in the Douluo Continent, many evaluations of soul masters are based on a color system similar to spirit rings, ranging from low to high: white, yellow, purple, black, and red! At most, there...。"After uttering those words, the Nightmare Demon turned and walked away. His body suddenly became translucent, as if he merely blinked and vanished from everyone's sight." 。The Nightmare Devil was g...