Here is the full list of all 51 Crystar achievements.
Defeated a starving Revenant. There were many that couldn't be saved. I must keep improving.
Killed 1000 enemies. Now...who's next?
Gave an enemy a Status Ailment. Let it haunt you, to the root of your Soul.
Pet Thelema 10 times. Good girl.
Bade farewell to the distorted past. But they weren't all bad memories.
Achieved a 50 chain. I can keep going.
Defeated 5 enemies at the same time. Round 'em up!
Fused a Sentiment to its limit. This Sentiment makes me feel at peace.
Purified 30 Torments. I have to do this...so I can achieve my...
Cleared an optional Ordeal for the first time. I do like a hard worker.
Collected max amount of Torments. Please stop... this is too much...
Fused Sentiments 5 times. There is still power hidden within these Sentiments.
Defeated the Revenant girl. The glimpse of her past revealed an innocent little girl.
Completely unlocked one person’s Memoirs of the Dead. I know all about your past.
Collected 10000 Essence. Now isn’t the time to use these yet.
Fused Sentiments for the first time. I need to gather more Sentiments and become stronger.
Purified a Torment. This is so painful.
Killed 100 enemies. Don't get in my way!
Voluntarily go to Purgatory. All to save Mirai.
Congratulations on collecting all the trophies. Congratulations, thank you. Don’t forget to smile.
Received guidance of Alcea. All things flow. Night turned to dawn, tears turned to smiles, and sadness turned to happiness.
Completed the Memoirs of the Dead. Don’t forget. It's the very least I can do for killing them.
Saved Mirai. Have I...forgotten something important?
Reaffirmed your sister's love. Forever and ever...even in death.
Received guidance from the Demons. Ahaha, too bad! We're happy though!
Reached level 50. Obtain even greater heights of power.
Achieved MAX level. You work too hard...
Clear all Ordeals. I don't want to know any more about this tragic world.
All Revenants registered onto Memoirs of the Dead. I sympathize with their pasts, but I...
Played till the end. That was fun! Let’s play again!
Received feelings from a beloved family member. Woof! Woof!
Defeated the subservient Revenants. It is an honor to be defeated in her stead.
Released the soul of a broken friend. You're apologizing again. That's a bad habit, you know.
Defeated Anamnesis. This is the end of my revenge story.
Defeated the Revenant Princess. That's strange. This isn't the future I wished for.
Defeated the girl who lost sight of justice. I can’t go back either...
Received my younger sister's feelings. ...Don’t lose to all these absurdities.
Defeated the root of all evil. That means the true fools were...
Modified Sentiments 30 times. I can do this with that and...I know!
Modified Sentiments 10 times. It’s hard to make a good one.
Transformed Sentiments 50 times. I have a feeling I’ll get it on the next one! My faith is unfounded though!
Achieved a 100 chain. I still want more.
Achieved a 200 chain. More... Tiny pieces..
Killed 5000 enemies. I am the Executor Princess!
Defeat a boss without taking damage. Hmhm! If you can’t hit me, there’s nothing to be scared of!
Purified 100 Torments. Rest in peace...I’m sorry...
Used 10 consumable items. I’m not too fond of sweets.
Used 50 consumable items. That's a bit too much sugar...
Used 100 consumable items. I think I'm starting to like it...
Collected 100000 Essence. My purpose has become collecting Essence...
Doted on Thelema 53 times. Good girl. The average height of a Samoyed is 53cm.