I think we can safely dismiss the fandom assignment aspect as part of demonic impersonater Astolat’s treachery 😆

That said, my first non-404 hit was a Batfamily fic, which is actually a pretty plausible assigned fandom for me (found family tropes are my kryptonite, I’ve been in comics fandoms before, and I know a few acquaintances who are in the fandom)