As school bells ring, a little sheep wakes up at the Royal Academy of Diavolo in the demon world Devildom-where seven eccentric demon princes await. This wooly critter is actually a human exchange student...so why are they so fluffy and cute, and why can't they remember anything? Now, they must figure out how to turn back into a human and regain their memories as princes named Lucifer, Leviathan, and more raise hell with their devilish hijinks!