LogFAQs > #980330945

In Operation Abyss you can convert gold into experience for your party members. So if you wanted to swap in a new party member in the late game you can just dump your gold into catching them up in levels. Or more importantly, if someone dies in a random fight and ends up with a different amount of exp from the rest of your party you can spend a little bit of gold to get everyones exp values to the same numbers again.