Jeff the killer x male!reader

this is a reupload because it somehow got deleted *sobs*

Welcome to Demon School Iruma X Male Reader

"I have to live with demons?! You're kidding right?" a young boy named (Y/N) is a strong human with magic which he keeps as a secret but now he has been sold by his guardian to a demon. Now he is the demon's grandson along with another boy named Iruma, how will they live and survive in this world filled with demons. T...