The game has 4 Game Over Endings and one True Ending.

To get all endings, use the "Full Walkthrough."

If you just want to get the True Ending as fast as possible, use the "Quick Walkthrough."

The first two choices of the game don't matter, so they're not mentioned.

Save 1 at the choice between “Go out and see Miyako” and “Work comes first”

Game Over Ending #1

Choose “Work comes first”

Load Save 1

Choose “Go out and see Miyako”

Save 2 at the choice between “Find out what’s happening” and “Don’t worry, be happy”

Choose “Don’t worry, be happy”

Save 3 at the choice between “I can’t just ditch Kei” and “Stand by Miyako”

Game Over Ending #2

Choose “I can’t just ditch Kei”

Game Over Ending #3

Load Save 3

Choose “Stand by Miyako”

Load Save 2

Choose “Find out what’s happening”
Choose “Stand by Miyako”
Choose “I can’t betray the film club”

Save 4 at the choice between “Ask” and “Hold my peace”

Game Over Ending #4

Choose “Hold my peace”

True Ending

Load Save 4

Choose “Ask”

“Go out and see Miyako”
“Find out what’s happening”
“Stand by Miyako”
"I want to film her after all"