The male lead, Lan Feng, comes from a cultivation family in the Demon Realm that bears the same name. When he was young, he contracted a mysterious illness while away from home. His cultivation regressed, and he had only a short time left to live. One day, his grandfather Lan Gao went out to seek medicine for him and encountered the Ghost Master, Gui Shi. Lan Gao gave up a fortuitous opportunity and asked Gui Shi to cure Lan Feng instead. An accident occurred while Gui Shi was treating him, causing Lan Feng to form a bonded-beast pact with a mysterious black egg. When it hatched, the creature turned out to be Canyue, an evil wyvern capable of slaying gods...
