After the Demonic Cult, led by the Demon Cult leader Cheonma, won in the Demonic Cult War decades ago, the Demonic Cult has grown to the point where it dominates the world, but for Seok Mun-pyeong, who belongs to the lowest rank among the lowest, the Demonic Dragon Contest that determines the next leader of the Demonic Cult is also important. It's something from another world. I thought it would have nothing to do with the messy circumstances of the current leader Cheonma, who was supposed to hand over the throne to the next leader, but one day, Seok Moon-pyeong received a call from Privy Councilor Pyo-yeong, one of the candidates for the next leader. Immediately, he becomes a member of Ma Young, the secret guard unit closest to the cult leader, and is given the mission to protect the cult leader. A difficult mission to follow in the footsteps of Cheonma, a martial arts master who hates troublesome things more than anything else. The religious leader finally appears in front of Seok Mun-pyeong, who is despairing of a mission that goes against Utjeon's review and cannot guarantee even his own life...