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.
PHASE 3 completed.
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.
Chatted a lot with Ion in Purification.
Synthesized many items with Kanon.
Chatted a lot with Cass in Purification.
Purchased all regional Nyuroki at shops.
Reached the end of Ion's Genometrics.
Synthesized many items with Sarly.
Chained a lot in a single battle.
Chained quite a bit in a single battle.
Repeatedly installed to breasts in Purification.
PHASE 2 completed.
Synthesized many items with Tattoria.
Burst a lot in a single battle.
PHASE 1 completed.
Burst quite a bit in a single battle.
Heartlessly refused Ion's request.
Burst a little in a single battle.
Chained a few in a single battle.