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.
Defeated the Last Sentinel.
Unlocked a Core Element.
Completed all of Romy's character events.
Maximized the Development Level of any category.
Used all essences.
Obtained all decoration accessories.
Raised a rare Puni.
Completed all ruins in the Exploration Diary.
Collected all Ruin Fragments and Memory Vestiges.
Completed everything on the research list.
Obtained all decoration items.
Earned max reputation with all groups.
Completed all of Cassandra's character events.
Completed all of Bos's character events.
Earned max reputation with any one group.
Completed all of Serri's character events.
Obtained an everlasting treasure on a grand adventure.
Defeated the Legendary Monarch.
Completed all of Clifford's character events.
Obtained all gathering and adventure tools.
Completed all of Tao's character events.
Discovered the Dragonbone Valley crystal.
Completed all of Lent's character events.
Unlocked all alchemy skills in the Skill Tree.
Discovered the Mirage Land crystal.
Completed all of Dennis's character events.
Used an essence during synthesis.
Completed all of Patricia's character events.
Created a level 99 item.
Completed all of Klaudia's character events.
Completed all of Zephine's character events.
Created an Evolved Item.
Discovered the Ancient Mana Workshop crystal.
Created an item with 999 quality.
Obtained the Mana Lantern.
Discovered the Sunken City of Stars crystal.
Created an Air Drop.
Discovered the Maiden's Catacombs crystal.
Found the Spirit Beast Whistle.
Completed first ruin in the Exploration Diary.
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.