I guess you haven't played 12 Sky 1. Well in 12 Sky 1 there are things called Loyalty Points. You gain these Loyalty Points by tsing a student and by just being logged into the game. For every minute, you gain x amount of Loyalty Points. When you have gained enough Loyalty Points, you can exchange a certain amount for either CP or a Mighty Reward. A Mighty Reward is a random but valuable item. In 12 Sky 2, Loyalty Points are called Merits. The npc/ability to exchange your merits has not been implemented, however.