Modern doctor Xavier Ward accidentally travels to a wuxia world where righteous and demonic factions are in opposition, awakens the Heavenly Eye superpower, and travels the martial realm using his Acupuncture Needles medical skills. He saves Senior Sister Luna of the Demonic Sect, gets drawn into the three-way power struggle between the Demonic Sect, Chan Sect and Nether Guard, learns the ancient divine skill Serpent-Sparrow Skill, eventually uncovers the national restoration conspiracy of Demonic Sect leader Milo Mo, defeats his powerful enemies using the Formless Sword Body and Formless Sword Formation, takes over as the master of Nether Guard, and finally finds happiness with Senior Sister Luna.
