How to Level Up FAST in Triangle Strategy!

As I'm playing New Game+ and trying to catch up my underleved units so I can use new ones, I realized how quickly it could be to level them up and found a really fast method that I figured I'd share. Feel free to let me know if you guys have any more ways to optimize it or figure better ways out!
Timestamps:
0:00 Intro
1:03 How Level Ups Work
6:06 The Strat
All music used is from the OST itself.
#TriangleStrategy #Nintendo #SquareEnix