Obey Me! the Comic Vol. 1 (manga)

As the underworld’s school bells ring, a little sheep wakes up at the Royal Academy of Diavolo in the Devildom—where seven eccentric demon brothers await. This wooly critter is actually a human exchange student…so how did they end up a sheep? Everything is a blank!

Now, this sheep must figure out how to turn back into a human and regain their memories as Lucifer and the other demons raise hell with devilish hijinks!