Forcing My Sister to Marry a Fool, I Went Crazy After Returning from the Grave

The place where the sky is buried is the most mysterious place in the world. It is said that it can bury the sky, the earth, and all living beings! Fang Chen accidentally entered the Burial Land and was accepted as a disciple by nine powerful men, receiving the inheritance of Tongtian. Three years later, he stepped out of the land of burial. Who in the world could be his enemy?