Deyja

"After the Haunted Estate is gone, Deyja is born. Can you believe it? This whole thing has gone its turn for the worse... I guess."

--Su Ji-Hoon, The Aftermath of the Haunted Estate

Deyja, officially known as the Undead Kingdom of Deyja, kingdom of the necromancers, lies in the northern barren land part of North Korea.