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