Deravillael, an Academy of Holy Knights, founded to train future knights who are capable of defending the country. Risbel Vendain, son of a Monma, Sabre, and a Paladin Knight, Seong Gi-Sa, summons a Monma Demon, Rovernia, to help him regain his position as Chief. In exchange for manipulating the dreams of Kendon Ayler, Risbel has to offer his body to Rovernia. The only thing missing from this mischievous plan is Kendon Ayler's depravity but somehow, the way Kendon looks at Risbel is strangely uncanny...