In all honesty, I am so sad this isn't a thing. Jujutsu kaisen x Made in abyss fanfiction where the readers are Faputa aka sukuna's son/daughter (Faputa can be a boy or girl). Both plots will be mixed in together. After Sukuna was sealed, Faputa would have been born. (Following some plots in Made in abyss). After a lot of time, we will have met Gojo when he was a kid, stayed with him all the way until we've met Megumi in Hidden inventory, left and came back in the beginning of the Shibuya incident, somehow being sealed together with gojo because Faputa will be a problem was fake Geto.
