Hmm...
I'm not going to use the common Lv. System from yeolde games. I'm going for something a *LITTLE* more customizable. Hm.
So, you gain Exp as usual. From the battles. And a little bit (usually a single EXP) every turn. You have the option of allocating this Exp. to your Lv, to convert it to Bp (currency), to apply it to skills... Some of it is always force on the level, tough. You can choose a "style" for your character to follow - it determines the status he gains when he levels up. Hmm...
You can always change it, but it costs Exp. However, it does not restrict anything at all - equipment , etc. And changing it results in a small stat change. A very small one. If Purun goes from Fighter to Spellcaster, to exemplify, her Hp mihgt drop from 110 to 95, her attack from 18 to 15... Her Mp would go up from, say, 7 to 13. Something like that. Based on percentages. You lose or gain about 10% of certain statuses. I'm still thinking on this, I need opinions.
Also, regarding skills - Larselle gains them from finding spirits and from Exp. purchases, whereas Purun gains them from Exp and at a Blue! magic like system.
I'm thiiiiinking. Also, forgive my poor english. >: