Here is the full list of all 10 Chuusotsu 15th Graduation: The Moving Castle achievements.
Unlocked all achievements in Chuusotsu! 1.5th Graduation: The Moving Castle
Saw the end of Chuusotsu! 1.5th Graduation.
Witnessed the end of the event.
Experienced the joy of creation.
Met an unexpected savior.
Saved Arue from becoming a criminal.
Discovered a shocking truth.
Witnessed the rush of humanity.
Opened Arue's eyes to a new world.
Witnessed Arue holding onto her convictions for a record length.