Night Traveler in the Funeral World

It turned out that he was a humble young man named Su Ye who carried corpses in a deserted cemetery. Because of a mission to bury the corpse of a genius for the sect, he heard a last word from the corpse's mouth that should not exist, and entered the "Burial Dragon Abyss" that should have been closed. There, he got an ancient black coffin to be "buried in the world", and for the first time he learned that the so-called sect's holy land, the dynasty's heavenly gate, and the ascension to the upper world were all connected to a harvest of sentient beings that spanned ten thousand years.