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