Here is the full list of all 49 Atelier Ryza 2: Lost Legends & the Secret Fairy achievements.
Unlocked All Achievements.
Activated all Core Drives.
Unleashed all Fatal Drives.
Obtained all decoration accessories.
Maximized the Development Level of any category.
Completed all of Romy's character events.
Defeated the Last Sentinel.
Unlocked a Core Element.
Obtained an everlasting treasure on a grand adventure.
Defeated the Legendary Monarch.
Created an Evolved Item.
Obtained all gathering and adventure tools.
Completed all of Dennis's character events.
Created a level 99 item.
Collected all Ruin Fragments and Memory Vestiges.
Completed all ruins in the Exploration Diary.
Completed everything on the research list.
Completed all of Serri's character events.
Completed all of Tao's character events.
Completed all of Clifford's character events.
Discovered the Dragonbone Valley crystal.
Used all essences.
Discovered the Mirage Land crystal.
Used an essence during synthesis.
Completed all of Patricia's character events.
Unlocked all alchemy skills in the Skill Tree.
Completed all of Bos's character events.
Completed all of Lent's character events.
Obtained all decoration items.
Completed all of Zephine's character events.
Raised a rare Puni.
Discovered the Ancient Mana Workshop crystal.
Created an item with 999 quality.
Completed all of Klaudia's character events.
Earned max reputation with all groups.
Completed all of Cassandra's character events.
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.