Ethan Sullivan, a descendant of the Heavenly Medical Sect, descends the mountain on his master's order, bearing peerless medical skills and cultivation to fulfill a marriage contract, only to get caught up in wealthy clan disputes and martial arts conspiracies. He saves lives with divine needles and subdues enemies with his strength, growing into a supreme powerhouse who controls the fate of Great Xia, uncovering the secrets of his background and embarking on a path of revenge and protection.