Here is the full list of all 46 Omega Labyrinth Life achievements.
Maxed out all skills for all characters.
Upgraded Luster Value more than 100 times.
Gone on more than 100 adventures.
Completed the Flower Codex.
Harvested flowers 200 times.
Cleared A Distant Garden
Completed the Monster Codex.
Cleared the Secrets of the Clock Tower.
Cleared Rinka's Test Site.
Cleared Hinata's trial.
Cleared Berune's trial.
Cleared Mei's trial.
Cleared Mio's trial.
Cleared Nanami's trial.
Cleared Juri's trial.
Cleared Yurika's trial.
Cleared a Sage's Trial.
Accumulated more than 200,000 μ of Nectar.
Acquired all expansions.
Emerged victorious in the final battle.
Achieved a score of 200,000 or higher.
Fully restored the garden.
Collected seeds 200 times while in dungeons.
Defeated the Reaper.
Defeated more than 1,000 monsters.
Had all characters attain Z Bust Mode.
Viewed all main characters' spa events.
Befriend all main characters.
Assimilated for the first time.
Reached a Luster Value of +99 on a piece of equipment.
Pai has appeared.
Successfully stole from the shop.
Spoke to both Greedrat and Petal Gob at least once.
Changed leaders a total of 10 times.
Upgraded Luster Value for the first time.
Restored 3 areas of the garden.
Gathered more than 100,000 ωP.
Reached Hyper L mode.
Restored 1 area of the garden.
You've obtained all achievements.
Acquired all Gallery Keys.
Viewed all stories.
Used a mic with all playable characters.
Completed the Item Codex.
Completed the Synthesis Codex.
Completed the Object Codex.