Here is the full list of all 47 Ace of Protectors achievements.
You've met Elena.
You've cleared all courses in the west of Peril.
You've collected 10000 golds.
You've met Charlotte.
You've cleared all courses in the east of Peril.
You've met Sarah.
You've cleared all courses in Kyra.
She has apologized.
You've collected 1000 golds.
Two heroes have met each other.
You've met Merry.
You've cleared all courses in Saraus.
You've completed the tutorial.
You're going to be the 'Ace of Protectors'.
You've met Lorence.
You've cleared all courses in Octasis.
You've met Christia.
You've met Patrick.
You've finished him.
You've cleared all courses in Zeras.
You've met Lucia.
You've met Felix.
You've finished her.
You've cleared all courses in Iris.
You've met Paul.
You've made the holy sword.
You've cleared all courses in Weane.
You've cleared all courses in Scara.
You've finished your last enemy.
You've completed the game!
You've completed the game on Easy Difficulty.
You've completed the game on Normal Difficulty.
You've completed the game on Ace Difficulty.
You've killed 500 enemies.
You've killed 1000 enemies.
You've cleared 10 side quests.
You've cleared 25 side quests.
You've crafted 5 items.
You've crafted 15 items.
One of your characters have reached level 25.
All your characters have reached level 25.
One of your characters have reached level 50.
All your characters have reached level 50.
You've found 15 intel items.
You've found 30 intel items.
Make one NPC really like you.
Make five NPCs really like you.