I Raised a Peerless Ghost King with a Key

Xuanjiang is the humblest outer disciple of Yugui Sect, and his only support is a withered-bone ghost. One day while cleaning the corner of the forbidden area, he picked up a key covered with patina. The moment the skeleton ghost touched the key, he instantly transformed into a bloodthirsty ghost. It turns out that this key can infinitely increase the level of ghost items. When the blood moon enveloped the mountain gate of Yugui Sect, what stood behind Xuanjiang was no longer withered bones. Instead, he is the world-destroying Ghost Emperor who wears underworld armor and has thousands of souls under his feet.