Fighting in the Immortal Sky

This is a world dominated by immortal power, and technological civilization can only serve as a supplement. A different Earth, where the four ancient capitals were once classified as forbidden areas. The ancient cities were floating in the sky and no one dared to approach them. Those places of interest and historical sites on the former earth are all shrouded in the color of myth. Is this parallel time and space? Or is it an ancient mythical world? Jiang Lingkong was forced to rise in such a mythical world. With a sword in his hand, he could break his destiny and cut down the myth. One person could suppress the galaxy.