Here is the full list of all 26 Ar nosurge: Ode to an Unborn Star trophies - there are 6 bronze, 14 silver, 5 gold and 1 platinum.
Acquired all trophies.
Saw Ion and Nelo off to the Will of Exapico.
Succeeded in reviving Prim.
Synthesized many items with Sarly.
PHASE 3 completed.
Burst a lot in a single battle.
Chained a lot in a single battle.
Acquired all Friend Skills.
Synthesized many items with Nay.
Saw the Shurelia ending.
Healed the enemy with "Artificial Flower" Song Magic.
Reached the end of Cass' Genometrics.
Synthesized many items with Kanon.
Purchased all regional Nyuroki at shops.
Chatted a lot with Cass in Purification.
Reached the end of Ion's Genometrics.
Chatted a lot with Ion in Purification.
Repeatedly installed to breasts in Purification.
Synthesized many items with Tattoria.
PHASE 2 completed.
Burst quite a bit in a single battle.
Chained quite a bit in a single battle.
PHASE 1 completed.
Heartlessly refused Ion's request.
Chained a few in a single battle.
Burst a little in a single battle.