For those that haven't played the game, here's how it works. Instead of magic points or skill points you get battle points (BP). Both magic spells and physical techniques use up BP. Here's what it looks like...

4/10 +5

4 equals the amount of BP you start with. Starting BP.
10 equals the maximum amount of BP you can have. Maximum BP.
+5 means you gain 5 BP after each round of battle. BP regeneration rate.

Here's what that means. At first you only have 4 BP at your disposal. At the end of the round, if you didn't spend any BP, you will gain 5 BP for a total of 9 BP (9/10 +5). At the end of the next round you'll get 5 more, but since 10 is your maximum BP you will have 10/10 +5.

Confused? It's a very simple thing that is very hard for me to explain. Here's another example. You begin at 4/10 +5. You then use a skill that costs 2 BP, which brings you down to 2/10 +5. At the end of the round you gain 5 BP, which brings you up to 7/10 +5. Does that make sense?

Here are some more rules about the game's BP system.

1. If you were KO'd and revived in battle you come back to life with your starting BP. In other words a character's BP is reset when they are KO'd.

2. Your starting BP and maximum BP can raise as you level up, but not your BP regeneration rate.

3. Your BP regeneration rate is always equal to a certain percentage of your maximum BP. In the above example, a character that has 4/10 +5 has a BP regeneration rate of 50% because 5 is half of 10. In other words, +5 is only the BP regeneration rate at the moment. As the character's maximum BP goes up the BP regeneration rate will go up as well, but the BP regeneration rate will always be 50% of the maximum BP.