On the Snake Island far away from the Central Plains, the Dulong Master lived with his apprentice Jin Shiyi (played by Lin Feng) and taught him his lifelong skills. One day, the Dulong Master suddenly became possessed and died. Before his death, he asked Jin Shiyi to return to the Central Plains with a handwritten letter and hand it over to the head of the Mangshan School, Lu Siniang. Jin Shiyi, who had always grown up on an isolated island and did not know the etiquette of the Central Plains, set foot on the land of the Central Plains in rags. He was mistaken for a disciple of the Beggar Gang and was involved in gang disputes. His extraordinary moves attracted the attention of Gu Zhihua (played by Li Caihua), a female disciple of the Mangshan School. The blood-drop killer Li Shengnan (played by Ye Xuan) also set his sights on Jin Shiyi, and even educated him to reverse black and white to let him deal with decent people. On the way to Mangshan, Jin Shiyi and Gu Zhihua gradually fell in love, but Li Shengnan also developed a subtle daughterly love for Jin Shiyi. This unexpressible love and her special identity made her moody, and Jin Shiyi could not figure it out. As the conflict between the sects further expanded, Jin Shiyi and two peerless women, Li Shengnan and Gu Zhihua, also experienced emotional cleansing.