How do you get a class upgrade on grand Fantasia

Go to this link and they will tell you all about Grand Fantasia: here is the link for the classes: http://wiki.aeriagames.com/grandfantasia/index.php?title=Character_Classes
--------------------------------------------------------------------------------------------------------Bad answer ^ Actually you class upgrade when you reach certain levels.
First class upgrade is at lv 5, then 15, then 30, then 65, then at lv 85.
You will automatically get a quest for the class upgrade.
-Dai LV 50 Paladin Server Bodor Ch2 Give me trust points :)