Mangje

The Mangje (亡帝) who protects the Ihwa Mangbun (梨花亡墳), the eternal resting place and sanctuary of the previous leaders of the thousand-year-old Demonic Cult …! The qualifications of the Mangje are only given to the current Demonic Cult leader and his disciple in the absence of the Demonic Cult leader. However, with the removal of the Demonic Cult leader Cheonma due to the Hwanma Rebellion, an unprecedented situation has arisen where there are two Mangjes: Hwanma, who became the next Demonic Cult leader, and Cheonma’s disciple Lee Gun-Ak. So who will become the Mangje, the guardian deity of the Ihwa Mangbun…?

(Source: MrBlue, translated)