Here is the full list of all 12 Wind Child achievements.
Befriend the cadet.
Begin the Journey.
Receive the gift of magic
Witness the fate of Fort Abigail.
Infiltrate the Imperium Research Facility and survive the Security Droid.
Save the Alvwa Queen.
Find the lost armaments and learn about the Kaze hero.
Defeat the Grey Knight.
Unlock the mausoleum.
Befriend the free spirit.
Befriend the captain.
Befriend the immortal.