I Became a Corpse Whisperer in Daxia

The world is made up of the “Mortal Realm,” where the living reside, and the “Netherworld,” where the dead reside. They should be separated, but the heavens are flawed, giving rise to seven “Netherworld Gates,” rifts that connect yin and yang. Once every hundred years, the forces of yin and yang converge, widening the gates and letting the aura of the Netherworld leak through, bringing calamity.