During the Dayin period, the four martial arts sects were in dispute, and only the "Double Heart Order" could stop the war. This order recognized the master and ran in both directions. Shen Zhiyao, a female officer in the Turning Division, was originally a medical woman from Yaowang Valley. She was ordered to investigate the case and met the ranger Xie Wuyan. The two of them unexpectedly received help while tracking down clues to the "Double Heart Order", which made them fall in love as they cracked the three secret realms. They are different from ordinary Jianghu people in that they can always turn danger into safety. In the end, the two turned their murderous intentions into benevolence and ended the centuries-old grudges in the world. Their two minds united to create a beautiful martial arts world.
