Here is the full list of all 20 Fox Spirit: A Two-Tailed Adventure achievements.
Find the Star Ball.
Change Daichi's attitude toward foxes.
Avenge your family by killing Daichi.
Secure a peaceful resolution to the conflict between the Wild Masters and the human empire.
Help the Wild Masters destroy Hoshimori.
Help the human empire destroy the Wild Masters.
Destroy the entire human empire.
Join the Wild Masters.
Secure a job working for the human empire.
End the game as a fearsome demon.
End the game as an infamous trickster.
End the game as a divine messenger of the Goddess of Hoshimori.
End the game as a beloved folk hero.
End the game with an enigmatic role.
Have an intact romantic relationship at the end of the game.
Have a very good friendship intact at the end of the game.
Stole an eel and then repented.
Put on a spectacular light show.
Learned about Chiyo's scar.
Beat Kahi at a game of tag.