Here is the full list of all 52 Nights of Azure 2: Bride of the New Moon achievements.
See the ending in which Aluche dies.
Complete Chapter 7
Slay 100% of fiends.
Max out Ruenheid's Affinity Lvl.
Raise Equipment Lvl to 30.
Make a Servan undergo Ultimate Evolution.
Complete Chapter 6
Take Dur as a Servan.
Acquire Arnice as a Lily.
Take Perie as a Servan.
Complete Chapter 5
Complete 50 sub-quests.
Take Alice as a Servan.
Complete Chapter 4
Take Spora as a Servan.
Take Glanz as a Servan.
Take Dampf as a Servan.
Reincarnate a Servan.
Take Froid as a Servan.
Complete Chapter 3
Level up a Servan and evolve them.
Take Hexer as a Servan.
Raise Equipment Lvl to 10.
Collect over 30% of all items.
Take Scharf as a Servan.
Take Vol as a Servan.
Take Farfalla as a Servan.
Complete 10 sub-quests.
Take Kaede as a Servan.
Complete Chapter 2
Level up a Servan.
Take Aile as a Servan.
Take Feuille as a Servan.
Complete Chapter 1
Slay over 30% of fiends.
Take Pitz as a Servan.
Take Nero as a Servan.
Complete the Prologue
Acquire all Achievements.
See the ending in which Aluche lives.
See the Lily afterstories.
Max out Liliana's Affinity Lvl.
Max out Camilla's Affinity Lvl.
Max out Veruschka's Affinity Lvl.
Max out Eleanor's Affinity Lvl.
Max out Muveil's Affinity Lvl.
Max out Arnice's Affinity Lvl.
Collect over 100% of all items.
Raise Aluche to Lvl 50 through Blood Offerings.
Open all treasure boxes.
Pass 100 days in-game.
Acquire all of Aluche's abilities.