I'm Possessed by the Ghost King

Due to the spiritualism of the older generation, some of the evil spirits summoned are too powerful and cannot be "invited back", leading to possession and harm, and many things that cannot be explained by science come from this. What's more, they are afraid of birth, old age, illness and death. Covetous for money, power, sex, and lust. Inherit or specialize in learning various magic arts such as "soul calling", "head lowering" and "life extension" to relieve fear and pursue desires. And I was possessed by a ghost who was called the King of Ghosts thousands of years ago, and we fought side by side! I heard that the ghosts and various sorcery you summon are very powerful? Come, come, let me show you what it means to be an ancestor! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.