Continuing my newly formed “series”, here is my guide for Azuma Natsuhiko. Before you can choose Natsuhiko’s route, you must complete either Sakuya or Itsuki’s route. The game recommends completing Sakuya’s route first, which is what I did.
Skip to first choice
Look for a room with Mikoto
Chase after them
Character Select: Kuga Mikoto (far right)
Choose no partner. Investigate alone.
Give it to him
Take the initiative
Someone was defying The World’s orders
We had been flying around in circles
Refuse to do so
Because people who are suffering need me
That is a waste of time
I want to go with you
Chapter 6 (Make a save file)
Stare at him silently
…going out to look at the stars?
You’re so kind
Dodge the question
That will get you to the true ending
As I mentioned in Sakuya’s route, I don’t know what affection is necessary to get the bad ending, but halfway should be low enough. Load up chapter 6 and pick the other choices to avoid increasing your affection with Natsuhiko.
Don’t forget to purchase the Natsuhiko short story from the Norn store once you’ve completed his route! That will get you all of the CGs for his route.