Divine beasts obviously don't need any sword techniques, so this swordsmanship is actually the sword technique used by the owner of the Aolai Divine Beast. It's just that, at some point, this sword technique was spread in the world and ended up in the hands of Doctor Sun's ancestors. However, his ancestors were clearly not strong enough to comprehend it, and after generations of refinement and practice, they eventually transformed it into a set of medical skills.
Han Yan felt a surge of joy in his heart. Nine Heavens Star Falling Sword is the swordsmanship of the Aolai Divine Beast's owner. Although such a powerful figure who knows countless ancient techniques certainly knows more than just this sword technique, and this may not be his strongest swordsmanship, for it to catch his eye, it can't be weak, and it's definitely superior to the vast majority of sword techniques in the world.
