While practicing medicine and saving lives, Xiao Jiangxi reveals the secret of the Yin-Yang Revitalizing Needle, attracting the covetous gaze of Shen Guoshi. Consequently, the Jiang family falls into ruin. Xiao Jiangxi and Xiao Changjin are separated, each holding a Yin-Yang Needle Packet as a token of their hope for reunion. Ten years later, the emperor arranges a marriage between Shen's eldest daughter and Li Changjin, and Shen Guoshi arranges for Jiangxi to take the bride's place.
