Skill Point

Skill Points are points that you gain after you level up your character. They can be used to increase your attributes. 1 Skill Point is required for each attribute increase. Note that increasing your Stamina will require you to use 2 of your Skill Points. You usually gain +5 Skill Points, when you level up. You also gain one Skill Point for mastering a job on each level.

Buying skill points from The Godfather
The Godfather offers you skill 4(upgrade) points.