>>688854>>689036What about anime with original stories? It's not like those don't exist.
And with how big of a market they've become in the past two years, if not now then when? They're not going to have all of their talents forever.
Just make the story a reverse isekai where the MC (Sora) makes a wish and pulls in girls from all sorts of fantasy settings to a modern universe to join her idol group, then fill it with CGDCT and song performances.
Boom, AOTY, 100k+ Blu-ray sales easy.