The Years I Taught in the White Tower City

Thirty thousand meters above the horizon, under the pure white tower standing upside down in the sky, the boundless floating city stands quietly. This is an extraordinary world. Everyone has their own abilities. They can release flames, cause earthquakes, and turn stones into gold. The wonders of the world gather here... Following the steps of the Tower Master, the four strongest followers founded four academies and ruled everything in the White Tower Capital. The impoverished Gu Chen, because of a teacher invitation letter from an unknown source, crashed into this strange world and witnessed a unique miracle in the world. The first thing he had to do when he took office was to deal with three problem children with different personalities...