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
Boot up the game!
Play the game in English
Play the game in Japanese