ELIMINATING ALL ENEMIES ON YOUR FIRST TURN LETS YOU CHAIN BATTLES
When you’re fighting random encounters, it’s possible to chain multiple battles together for a big experience bonus. The only condition to do this is that you defeat all enemies on the first turn of the battle. By doing this you can hit the left shoulder button to advance to another battle.
The only thing to keep in mind by doing this, is that any brave points your characters used in the previous battle will carry over. So if you had a character at -4 brave, they would still be at that count at the beginning of the next battle. However, you can chain battles together more than once, increasing the experience bonus every time that you chain. It can be difficult to keep going for multiple rounds, but the chain function is a good way to get a huge experience boost early on.