Here is the full list of all 32 Arc the Lad: Twilight of the Spirits trophies - there are 12 bronze, 14 silver, 5 gold and 1 platinum.
Collect all trophies.
Defeat the Lord of the Black Abyss.
Reach level 50 with Darc.
Reach level 50 with a companion.
Equip one character with three Romantic Earrings.
Complete the Rivalry chapter.
Steal an item from an enemy.
Complete the Mark of Devils, Road of Bravery, Enlightenment's Path, and Title of Demons Arena challenges.
Reach level 50 with Kharg.
Win Diekbeck from the Cathena Arena.
Learn every skill for Kharg and Darc.
Bring all five Spirit Dictionaries to Span.
Complete the Evolution chapter.
Defeat Droguza in his altered Deimos form.
Collect all of the Ancient Tablets.
Win Choco from the Rueloon arena.
Consume a Bountiful Fruit.
Learn an 8-star skill.
Complete the Truth chapter.
Complete the Reunion chapter.
Complete the Rage chapter.
Complete the Love and Hate chapter.
Complete the Conflict chapter.
Complete the Ambition chapter.
Use Mind Control to take control of an enemy.
Feed the Pyron some food.
Obtain the Gorgeous Ring.
Complete the Setting Out chapter.
Complete the Awakening chapter.
Complete The First Battle.
Have a healer return your party to full health.
Perform a dual attack.