The emperor mage

In this world every person is born with a certain magic, the magic of air, the magic of plants, ect. In this world, all the mages are fighting to get the position of the emperor mage, so you, the owner of the story, will try to reach this position. But there are many stages to reach this rank, first you must join a magic academy, and in magic academies you graduate once you win the annual tournament, which is a tournament where magicians in the academy face each other and the strongest graduates . Then you will go on missions that the emperor mage gives you and he will promote you whenever he feels that you are getting stronger. The emperor mage has ranks: beginner, intermediate, and professional. Every 8 years, the emperor mage must change by choosing the person he feels deserves this position from the professional rank.