Unstable souls (naj x Gaster Blaster Skeleton reader)

(y/n) is a Gaster blaster skeleton hybrid with split personality disorder. And each home she's been too hated her until it took her off the edge and she lost it or so she thought. So she has been in an insane asylum for 11 whole years,until she gets to go to Underhigh a real High school for monsters. I wonder what will happen...enjoy~