Here is the full list of all 15 Grisaia Phantom Trigger Vol.3 achievements.
Complete chapter 11!
Complete chapter 10!
Complete chapter 9!
Complete chapter 8!
Complete chapter 7!
Complete chapter 6!
Complete chapter 5!
Complete chapter 4!
Complete chapter 3!
Complete chapter 2!
Complete chapter 1!
Play the game in Simplified Chinese
Play the game in Japanese
Play the game in English
Boot up the game!