The heroine Ling Suwen comes from a medical family and possesses superb medical skills. However, due to her physical constitution, she is unable to practice superior internal skills. Her fiancé, the young master of the Qingyun Sword Sect, who is known as the number one genius in the martial arts world, broke off their engagement in public and was humiliated, making him the laughing stock of the entire world. However, the humiliation of breaking off the engagement did not defeat her, but instead inspired her unyielding fighting spirit. Relying on her ultimate understanding of the meridians and acupoints of the human body, she integrated medical theory into martial arts, and created the miraculous skill of "pointing acupoints and cutting pulses" using filiform needles as weapons to target the weak points of the human body.
Ling Suwen traveled around the world, saving people with one hand and killing enemies with the other. She rescued the demon sect elders who were being hunted by the righteous, and also punished the hypocrites who were disguised as benevolent and righteous. In the process, she got acquainted with Ye Xun, a knight-errant who seemed cynical but actually possessed unique skills. From testing each other to joining hands, the two jointly uncovered a shocking conspiracy: It turned out that the Qingyun Sword Sect coveted Ling Suwen's "Innocent Body" that could only be found in a century. They broke off the engagement just to force her into a desperate situation, and then captured her as a "savior" to practice evil skills and plot to dominate the martial arts world.
In the end, at the martial arts conference, Ling Suwen used a silver needle to break his ex-fiancé's "unbreakable sword body" in front of the world's heroes, exposed the hypocritical mask of the Qingyun Sword Sect, and proved in his own way that "healers" can also shock the world, reshaping the world's definition of "powerful".
