If you loved Aki no Kanade, try Wake Up, Girls! - Seven Idols
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the bittersweet, playful mood tags, and they sit in Animation / Drama / Music territory. If that's the register that drew you to Aki no Kanade, the second film will land in a comparable space — through a different lens.
bittersweetplayful
What Wake Up, Girls! - Seven Idols is
Here's a film about the Japanese entertainment industry that is, in itself, a product of the Japanese entertainment industry. A talent agency president decides to create an idol group to save his failing business. It's a fairly effective piece of marketing, if nothing else.
Ask 
ChatGPT
Claude
Grok
Le Chat
Perplexity
for a deeper bridge
ChatGPTClaudeGrokLe ChatPerplexity