As someone who has completed the game, let me give you a few tips.
Lily's bar is attached to memory sticks, quests and other collectibles that reveal the truth behind the Mother Sphere so the best way to increase it is by targeting activities that help with that.
IMPORTANT TIP: Only continue with these activities before the point of no return/ heading to Spire 4. You'll propably be 75% done at that point.
- ALL POSTER IN XION
- SU AND ENYA STORYLINE
- THE STORYLINE THATS CONNECTED WITH FOUNDING THOSE PRAYING SHRINES
- ALL PRAYER BOOKS
- ALL ROXXANE'S MISSIONS
- KAYA QUESTLINE
- LUTHER'S QUESTLINE
That's pretty much all I had at the top of my head. I 'll add more if I remember.
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