just so make sure is there anything else I'm missing or is the next step after sacrifice sinking chapter going for the miracle requirements (aka the good endings and failed world tasks)
There few more short chapters in the first area. -after chapter i think you need good end of before midnight. Order 34 is if get hanyuu miracle stuff done.
I glad you like tomitake quest. There a lot of small quests like that in the game if you see hints to their unlocks.
But satoshi and irie sub chapters is as far as i got, i planned for more in that area.
Do you have twitter or discord, i can send spoiler hints of looking for more.