Spirit Energy Point/ power value

power value although doesn’t directly enhance human strength, but their usage is enormous.
 * First of all, it can be used to speed up the practice speed. With the usage of power value, the practice speed increase twice or more times as fast than those who doesn’t use it. The speed increase depending on the total power value a person has and the speed will be decided according to it.
 * Secondly, the power value is needed for the occupation promotion, every promotion needs to consume a certain amount power value, the higher the order the more it consume.
 * Finally, the power value is the mainstream currency of the world. The six building in the city also use power values as the main currency. Because that five building respectively are the tailor shop, blacksmith shop, woodworking shop, carving room, and alchemy rooms. If you want to buy something from there, it has to be with power value.