Zuo Yong Xing Qiu

The immortal emperor Xia Guixuan and his archenemy were both badly wounded in battle, and he retreated into the core of a remote planet to heal himself. The planet's environment was gradually transformed by the spiritual power that emanated from his presence, and it became a habitable planet with a rich spiritual aura. Many years later, humanity's galactic exploration ship came upon the planet. They found all sorts of powerful beings living on the planet, and conflicts will ensue.

(Source: Kuaikan, translated)