Here is the full list of all 44 Aragami 2 achievements.
Perform a Shadow Pull on a Gatekeeper
Counter a fireball thrown by a Scorcher
Complete Chapter 4
Find all collectibles in Daikizo Mine
Knock out 100 enemies
Find all collectibles in Isolated Village
Perform a Shadow Kill
Complete Chapter 3
Skip a cinematic
Find all collectibles in Highcastle
Complete Chapter 2
Obtain an S-Rank in 10 missions
Apply a Dye for the first time
Find all collectibles in Big Akatsuchi Mine
Find all collectibles in Lone Mountain
Kill 300 enemies
Complete Chapter 1
Eliminate 25 enemies while grabbed to a ledge
Eliminate 25 enemies while airborne
Find all collectibles in Kakurega Village
Find all collectibles in Distant Countryside
Eliminate 10 enemies while clinging to a wall
Unlock an Ability
Purchase a Support Item for the first time
Apply your first Essence Runes
Craft your first Equipment piece
Eliminate 10 enemies while hiding in tall grass
Unlock a Shadow Power
Complete your first mission
Find a hidden collectible
Complete the Prologue
Find all collectibles in Woods of Memory
Complete Chapter 5
Complete Chapter 6
Complete Chapter 7
Complete Chapter 8
Complete Chapter 9
Find all collectibles in Devastated Village
Find all collectibles in Akatsuchi Palace
Find all collectibles in Akatsuchi’s Capital
Charm an enraged Fanatic
Perform a Stealth Assassination on a Nenshö Aragami
Reach Level 30
Equip the armor of a legendary hero