Here is the full list of all 63 Angels with Scaly Wings achievements.
See the evil ending.
Get Adine to remove her headgear.
Keep the seashells.
Meet with Emera.
Reject Bryce's invitation.
Refuse to help Bryce 99 times.
See the true ending.
See Adine's bad ending.
See Adine's good ending.
Acquire a map.
See Lorem's good ending.
Assemble the sphere.
Play a prank on Bryce.
Find a mysterious base.
Find a mysterious orb.
See Lorem's bad ending.
See Bryce's bad ending.
See Bryce's good ending.
See Anna's bad ending.
Decide not to meet anyone or investigate 10 times.
See Anna's good ending.
Meet with Katsuharu.
Help Katsuharu.
Do a thing.
See Remy's good ending.
See your first good ending.
Follow Vara.
Beat Sebastian at his own game.
Skip ahead 10 times.
See what lies beneath the mask.
See Remy's bad ending.
Meet with Kevin.
Return the eggs to the hatchery.
Look at Anna's envelope.
Look at Remy's pictures.
Have two messages waiting for you at the same time.
Interrogate Damion.
Wait for Remy until you get bored.
Do well on the third investigation.
Do well in all investigations in a single playthrough.
Interrogate Anna.
Answer Anna's questions correctly.
Waste a perfectly good batch of eggs.
Order the daily special.
See your first ending.
See the neutral ending.
Bring Remy's books into the correct order.
Go to the portal.
Listen to a bunch of music.
Examine Bryce's blanket.
Look at Bryce's magazine.
Stretch your legs.
Do well on the second investigation.
Look at everything the store has to offer.
Acquire the bloody bandage.
Appreciate the landscape.
Find a handful of dirt.
Do well on the first investigation.
Learn a lot about fruits.
Drink a mysterious liquid.
Take a dragon dose of medication.
Read a bunch of books.
Give Anna your blood.