The Spy’s Life In The Demonic CultCheopja ui Magyo Saenghwal; 첩자의 마교생활; The Spy Life in the Demonic Sect; A Spy's Survival in the Demonic Cult

Iseo Jang, the Murim Alliances prodigy spy, has spent 14 years deep undercover in the Demon Sect, earning the ruthless title of Rabid Dog for his work as their counterintelligence agent. But his newest mission is his most absurd yet: make the Sects laziest, most notorious delinquent -- Wu Ma -- the next Cheonma. To pull it off, Iseo ditches his post and applies to be Wu Mas official aide. In a world of betrayal, martial arts, and political games, can even a talent like Iseo turn a hopeless young master into an heir?