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.
Completed all ruins in the Exploration Diary.
Collected all Ruin Fragments and Memory Vestiges.
Completed all of Serri's character events.
Activated all Core Drives.
Completed all of Romy's character events.
Maximized the Development Level of any category.
Completed all of Clifford's character events.
Used all essences.
Completed all of Dennis's character events.
Completed everything on the research list.
Obtained all gathering and adventure tools.
Obtained all decoration accessories.
Completed all of Tao's character events.
Discovered the Dragonbone Valley crystal.
Unlocked a Core Element.
Obtained all decoration items.
Discovered the Mirage Land crystal.
Unlocked all alchemy skills in the Skill Tree.
Completed all of Patricia's character events.
Completed all of Lent's character events.
Completed all of Bos's character events.
Completed all of Zephine's character events.
Created an Evolved Item.
Completed all of Cassandra's character events.
Unleashed all Fatal Drives.
Discovered the Ancient Mana Workshop crystal.
Created a level 99 item.
Raised a rare Puni.
Created an item with 999 quality.
Obtained the Mana Lantern.
Used an essence during synthesis.
Earned max reputation with all groups.
Discovered the Sunken City of Stars crystal.
Completed all of Klaudia's character events.
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.
Met Fi.
Defeated a giant enemy.
Synthesized an item for the first time.
Crossed the ocean and reached the continent.