Girl and Her Demon

Years ago, when I was in Uni, I ran a TTRPG game where there was a young girl who had been possessed by a demon and the girl's personality didn't leave or die... instead the demon decided to protect her from her abusive father. I ended up illustrating the two from the girl's perspective as part of the campaign. It was meant to look mostly out of highlighters and pencils. Perhaps some ballpoint pens.