Here is the full list of all 14 Grisaia Phantom Trigger Vol.2 achievements.
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 Japanese
Play the game in English
Play the game in Chinese
Boot up the game!