Here is the full list of all 49 Atelier Ryza 2: Lost Legends & the Secret Fairy achievements.
Unlocked All Achievements.
Defeated the Last Sentinel.
Obtained an everlasting treasure on a grand adventure.
Defeated the Legendary Monarch.
Maximized the Development Level of any category.
Used all essences.
Activated all Core Drives.
Created a level 99 item.
Obtained all decoration accessories.
Completed all ruins in the Exploration Diary.
Collected all Ruin Fragments and Memory Vestiges.
Unleashed all Fatal Drives.
Obtained all gathering and adventure tools.
Completed everything on the research list.
Completed all of Clifford's character events.
Used an essence during synthesis.
Completed all of Dennis's character events.
Completed all of Tao's character events.
Completed all of Serri's character events.
Discovered the Dragonbone Valley crystal.
Obtained all decoration items.
Completed all of Lent's character events.
Unlocked all alchemy skills in the Skill Tree.
Discovered the Mirage Land crystal.
Completed all of Patricia's character events.
Completed all of Klaudia's character events.
Completed all of Romy's character events.
Created an item with 999 quality.
Unlocked a Core Element.
Completed all of Bos's character events.
Completed all of Zephine's character events.
Completed all of Cassandra's character events.
Created an Evolved Item.
Raised a rare Puni.
Discovered the Ancient Mana Workshop crystal.
Earned max reputation with all groups.
Obtained the Mana Lantern.
Discovered the Sunken City of Stars crystal.
Created an Air Drop.
Discovered the Maiden's Catacombs crystal.
Completed first ruin in the Exploration Diary.
Found the Spirit Beast Whistle.
Earned max reputation with any one group.
Defeated an enemy shrouded in darkness.
Found the Emerald Band.
Defeated a giant enemy.
Met Fi.
Synthesized an item for the first time.
Crossed the ocean and reached the continent.