[MissMisa]

This is a great idea, I wish you well with it! I wish I had the time/money/fanbase to make something like that work here.

Maybe include some cosplay elements? A manga library, a wide range of popular and a bit more obscure manga, anime screenings and so on. Maybe a little bit of merch such as keyrings/badges to purchase too, and since it's a cafe, some anime inspired food? Cupcakes!

Once you get up and running, maybe you could get a purikura machine? They are SUCH a laugh and very popular!