Fan Chen traveled through the cultivation world for three years, possessing no spiritual roots at all, and only wanted to farm and cook in Luoxian Village to live the life of a mortal. During a chance encounter by the stream, he saved a dying white dog and named it Xiao Bai. Little did he know that this "mongrel" was actually the Primordial Chaos Ancestral Dragon, who reshaped its divine body relying on the porridge casually cooked and vegetables planted by Fan Chen. From then on, Fan Chen raised a dog to watch the house in the guise of a mortal, while Xiao Bai swallowed divine beasts, destroyed magical treasures, and shook the celestial world, starting an invincible daily life for man and dog alike.