Have shuffled around my nominations, and... Ao3 hiccuped or something, because after some shuffling it did let me change my fandom tag. Maybe because it says “Dangan Ronpa (Hope’s Peak Arc)” is a synonym of the canonical tag “Dangan Ronpa - All Media Types” ? I don’t know. I’m too fever-addled to figure this out. Let me know if there’s anything else I need to do on my end.