Not possible

After seeing and hearing all the screams you notice that your skin is the same as it was before but now you look like you are part demon part human, https://pm1.narvii.com/6152/5a7ef79b85bbe54aa9585f9fe7451c7b0bf0c94f_hq.jpg this shocks you as you wanted to be full demon and not some half breed you then come to the conclusion of that that is why you were locked in the cell.

You are eventually lead to a huge chamber in the chamber is fire everywhere and men and women hanging naked from chains asking for help some even look like they are enjoying themselves as you walk through the huge chamber you look to the corner of room and see a huge pile of skeletons. Then you get to center of chamber and see another demon sitting upon a fiery throne with hell-hounds sitting at each side. The demon then looks upon you and says "You have been imprisoned your whole life, this is the first time you are being even allowed out of your cell". He pauses only to say "You are a half breed and you do not deserve to be called a demon let alone be in my presence, but my sister convinced my otherwise, you are now the age of what humans consider 18 and you are been given the chance to live in the human world so i never have to set site upon you an abomination again. Then very quietly you hear him say "Mother should never have been allowed to **** humans, stupid bitch". No one heard him say this or at least he thinks no one did but of course you heard him. Then you start thinking if mother was queen does that make you heir to the underworld throne and he is your brother and like you already assumed that the demon next to him is you sister as she looks exactly like him.

He then snaps his fingers and you pass out only to wake up in some bed you look around and see familiar things, then you hear a knock at the door saying " Time to wake up get ready for school". You get up and notice that as you stand up that your hand is looking just like it did in your dream, you shake you hand thinking you are still dreaming only for it to change back.