Two martial artists are brutally killed by a team of assassins, leaving their wards, a young boy and girl, defenseless. A martial arts master dispatches of the assassins, sparing their lives, and decides to take them in. He raises them and teaches them martial arts.
The story takes place at the end of the Tang Dynasty, when the situation was turbulent and people were in panic both in the court and among the people. The mysterious organization “Bad People” affiliated with the government has lost all traces, and the priceless treasure of the treasury is also missing. According to legend, all the secrets are hidden in the Longquan Sword. Those who get the Longquan Sword have the ability to control the world. Li Xingyun lost his parents and became an orphan since he was a child. He was adopted by the kind hermit Yang Shuzi and followed him to practice martial arts. In a blink of an eye, many years have passed. Li Xingyun has grown into a high-spirited teenager. He and his fellow apprentice Lu Linxuan went down the mountain to improve their martial arts, and met Ji Ruxue and Zhang Zifan. By chance, Li Xingyun actually got the Longquan Sword. The news spread like wildfire, which aroused the vigilance of the major sects. They sent assassins to track Li Xingyun and his group in an attempt to snatch the Longquan Sword.
