Thanks bro ! Maybe the players with LV 24,23, 22 are not bots.
but human players who have changed their specialty by increase the stats of another specialty as charm or know-how.
I notice that these players only was avaliable to fight vs when i Reached LV16.
Update
Forget What do I talked, I remembered that they're Lv22, 23, 24 also the girls then it is obvious that they are bots.
After Lv 18 to raise level of the girls need 9999999999 xp, not human .But thanks a lot for the help these stats will be useful for the wiki and knowledge. I think you're right linear 9/5/7.