Something After the I of the Heavens Became a System

After Lu Xuan died, he found that he had become the legendary soul, but it kept getting lighter and more transparent. Just when he was about to die, a colorful light ball the size of a fist flew out of a stone on his chest and merged with Lu Xuan. Afterwards, Lu Xuan realized that he had to rely on a living body to survive. This! Isn't it just a system? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.