World background: In another galaxy, there is another planet, inhibited by some human that moved out of earth many years ago. And they start a different civilization on this planet, which magic power exist, but its nothing like earth. So there is a magic school, teaches student element magic, and there are five departments indicate the five elements from earth: water, fire, metal, wood and earth(ground). The school takes student from all around the galaxy. Because this planet does not have the balance elements, creatures here cannot live long.