Thank you for this list. They should be unlocked without an issue in the next patch.
"Aoba's Onigiri" is a heart unlock event with Aoba, and it looks like it's not possible to do that in Chapter 2, so I'll remove that from the gallery.
- Punipen
I was able to get "Aoba's Onigiri" event at the park when i maxed out 2 hearts with Aoba (Chapter 2, 3rd Intermission), when i was playing the demo a week ago.
