Basically, we will have to kill more than one monster to lv up. It is as simple as that, you gain exp for every kill. Either I or The One will determine when you lv up, so you can't speed lv and say you lv up 10 lvs in one post.

The One

I was thinking pretty much the same thing, but I was thinking at least 5 points at every level simply because the stats include strength, dexterity, vitality, intelligence, mind, stamina, accuracy and agility. So if you only gave 1 point skill at each lv you would end up with a character that is pretty weak. 

Yeah that is exactly right, which is why I gave them powerful starting skills to the mages and support class even though that means they can't use them very often it means when they get attacked by a group of monsters which normally they would never be able to handle on their own, they can use their class skill to save them, where warriors in the same situation would be able to handle it a lot easier. Even the black who would be one of the most powerful damage dealers, will be vulnerable to physical attacks because of light armor which provides virtualy no defense and low dexterity and vitality, but if they call a zombie or skeleton to their side they can have provoke the monsters and pick them off one by one.