I'm Really Not Taking Your Body by Lending It to You.

Su Wu, the genius of the soul world, was harmed by his rival Wanzai's conspiracy. He had no choice but to burn his soul and self-destruct, and escaped with a trace of his soul to the mortal world. Fortunately, I met Zhou Yang, a young man who owned a Horcrux. It was also a sudden misfortune. One was a giant of the soul who had been born with an immortal soul and had traveled across the three realms. He met a young boy who was just starting out and had no interest in world affairs. . . . . .