Here is the full list of all 33 Ephemeral Tale achievements.
Broke a piece of equipment. Whoops!
Found a Mimic inside of a treasure chest.
Used your first Scroll of Power.
Entered the Traveler's Respite.
Obtained the Blessing from the Guardian of the Forgotten Forest.
Obtained the Blessing from the Guardian of the Occluded Oasis.
Obtained the Blessing from the Guardian of the Corrupted Castle.
Passed into the Realm of Shadow.
Purified the Blessing of the Bayou Bog.
Purified the Blessing of the Graveyard Grove.
Purified the Blessing of the Royal Rosegarden.
Entered the Great Palace.
Completed Ephemeral Tale's main campaign.
Have 9999 (or more) power at once.
Unlocked a party member.
Recruited Siegfried to your cause.
Recruited Clarke to your cause.
Recruited Merlin to your cause.
Run away from a group of ghosts.
Begin New Game+.
Unlocked Dabby, the Dablin.
Unlocked Florence, the Blacksmith.
Unlocked Sabrina, the Middle-Aged Witch.
Entered the Sunken Summit.
Entered the Mute Mountains.
Obtained every node in the Skill Tree.
Helped Jesse in his search for his grandmother's cookie recipe.
Helped Shelldon in his quest to craft a fine helmet.
Helped a Snowbro out in his wish to adventure forth.
Challenged and defeated Gribbler, the Hideous Malformation.
Challenged and defeated Darune, Keeper of the Sands.
Recruited Jackson to your cause.
Opened a total of 50 treasure chests.