Here is the full list of all 15 Nevaeh achievements.
Chapter 0 cleared
slow fall 50 times
Clear the game without dying
Chapter 1 cleared
Chapter 2 cleared
Chapter 3 cleared
Summon a butterfly at the end
Run away from the Tower at the end
Restore the whole village.
Summon the Butterfly 100 times
Kill 100 monsters by jumping
Light up 100 lamps
Solve all villagers' quests
Find all hidden treasure chests
Use a ball to kill more than 30 combos of monsters.