concept: woman makes deal with demon to have it’s child in exchange for eternal life or some shit
woman then makes deal with witch and offers her first born for like, riches or something
woman dumps demon baby on witch, absconds with her winnings and leaves witch and demon fighting for custody
half demon baby grows up learning magic and visiting hell on weekends and every second christmas
does the woman act as a sort of vodka aunt who shows up sometimes to teach the child how to work the system?
“here you go timmy, have a new xbox. this year I’m going to teach you the ins and outs of magical tax evasion”
SHE DOES NOW
On the kid’s sixteenth birthday the fairies come to claim her. Her bio mom had been visiting but when the witch turns to ask her what the hell the fairies are taking about baby mama is gone along with the good silverware.