Here is the full list of all 46 Afterimage achievements.
Achieve all achievements.
Purchase all shop items.
Collect all accessories.
Deal 666 damage in one single hit.
Collect all shards of Divine Leaf and Divine Flower.
Activate all Confluences of Stream.
Collect all weapons and armors.
Learn all secret arts.
Complete the Beastiary.
Defeat all bosses.
Witness the effects of Nicole.
Reach level 99.
Shine on, you crazy flower.
Defeat Eseus, the Eternal.
Defeat Eseus, the Transcendent.
In the name of the Mask, Sword, and Halo.
Sweet dreams... are made of this?
Engadin is doomed\r and there's nothing I can do.
Defeat Karin, the Occult Prime.
Along the Tablet, seared by fate.
Collect all Primeval Glyphs.
Red phone or blue phone?
Defeat all powerful existences.
Save this for the sequel!
Do not disturb other's "work".
Obtain all abilities and Afterimages, and reach level 99.
Witness the great adventure of Karsa and Brenda.
Collect all Shenlong Glyphs.
Taste all cuisines of Engardin.
Taste the flavour of happiness.
Witness the endless end of Ethan.
Down in a hall and I don't know if I can be saved.
Where is my mind?
Defeat Guider, the Shadow Moon.
This fire is out of control...
We're out on the road again.
...the hardest part of this is leaving you.
Witness the long journey of Stanley and Levine.
Witness the fading of a sun.
Defeat Agus, the Pyro Goliath, Aqil, the Pyro Goliath.
Defeat Loss, the Broken Wings.
Perform a leap of faith.
Witness the last Echo of Rosalia.
Defeat an enemy by performing an enhanced Iron Bastion.
May our paths cross soon once again...
Defeat Lush Wolf.