Online Games: Start with Billions of Avatars

I have no money or power, but I have a doppelganger! Chen Fei entered the Demon Realm and obtained the only SSSSS-level hidden fighting spirit - the Shadow King. Every critical hit will produce a shadow clone, which inherits all the attributes of the original body. Then, Chen Fei discovered his identity. Not only could he fight, he could also practice skills, refine medicine, forge, mine, and collect herbs! The legend of the Invincible Demon Realm is about to begin... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.