The "servant" of the demon boy group. There are cold and arrogant vampires, elegant and gentle dream-eaters, rebellious werewolves and adorable cat spirits in this group. Life as a demon is hard, they were f...

Five years ago, Gu Yu's most beloved childhood friend, Wu, suddenly disappeared. To find him, Gu Yu enters the dangerous world of ghouls, disguised as a "mockingbird," humans who have sold their souls for a ...