I, a Non-System Mage, Can Upgrade My Magic

A hundred years ago, the world changed, and the real world and the alien world overlapped. Countless monsters appeared and wreaked havoc. However, humans also gained extraordinary power. When everyone is sixteen years old, they can awaken their own magic book. These magics are divided into five major categories. Elemental, weapon, spiritual, summoning and special classes! But Zhou Tong awakened to unsystematic magic, which did not belong to one of the five major categories. Therefore, you can only practice basic magic! However, he activated the upgrade system at this time! As long as you keep fighting monsters, you can upgrade your magic. Then! When everyone saw a huge meteorite falling from the sky, they all exclaimed! "Are you crazy! You call this fireball?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.