*Note: Natsuhiko’s route has no timed choices*
Prologue
(Save 1)*
Look for a room with Mikoto
A hiyoko
Chase after them
Character select → Mikoto Kuga
*Save here for all main routes for efficiency*
Chapter 1
Pair select → Choose no partner. Investigate alone.
Chapter 2
Give it to him
Watch
Chapter 3
Take the initiative
Chapter 4
Mouth-to-mouth
Someone was defying The World’s orders
We had been flying in circles.
Refuse to do so
Chapter 5
Because people who are suffering need me
Bluff
That is a waste of time
I want to go with you
Chapter 6
(Save 2)
Stare at him silently
…going out to look at the stars?
Arcturus
Spica
You are so kind
Chapter 7
Dodge the question
GOOD END
(Open Save 2)
Chapter 6
Ask him questions
…still mad at me?
Altair
Deneb
You are so clumsy
Chapter 7
Be honest
BAD END
Credit: 
Otome Dreamworld 