They are the demon boy group with a cold and arrogant vampire, an elegant and gentle dream-eater, rebellious werewolves, and adorable cat spirits. Life as demons is tough and they had no choice but to debut as a boy band to gain the "power of faith". Witness Ling Xiao's journey as he rose from being the group's "servant" to becoming their "mentor", leading the four demons to the height of demon life. However, their relationship with humans is forbidden and any romantic feelings between them are impossible. But wait, what's this? You have feelings for me? No, no, no, it cannot be... Aah, but this guy is so handsome (how ironic*).