Magic: Able to Combo

Ye Gu traveled to the magical world and awakened the combo system... From then on, there was an outrageous mage in the world. A classmate: What the hell is this? Why is there an ice-type Frostbolt after his fireball spell ends? A certain villain: *, how come this guy's thunder element has evolved into the Nine Heavens Divine Thunder? A certain abyss lord: What's going on with this kid? Why can he release various attribute magics? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.