At the end of the Yuan Dynasty and the beginning of the Ming Dynasty, ten factions from the five continents in the south of the Yangtze River wanted to form an alliance in order to resist the annexation of the Longxi God Ax Sect. Unexpectedly, on the day of the alliance, they were attacked by Qin Long and others from the Divine Ax Sect. The two sides started a fierce battle. Jiangnan Wulin was defeated miserably. At the critical moment of life and death, Qin Long uttered wild words and drew the Floating Cloud Sword. An old man saved Jiangnan Wulin. The old man and Qin Long were both seriously injured. The old man revealed a shocking secret before he died. After Qin Long was seriously injured, he was chased and intercepted by ten sects from the five continents in the south of the Yangtze River, and his disciples died tragically. Qin Long was rescued by Huangshan sect Cheng Song and fled to the Blood Valley deep in the mountains, where he met the guardian of the Fuyun Sword, Blood Valley Zhi. Before his death, Qin Long passed on the magical skills to Xue Guzhi and asked Xue Guzhi to fulfill his last mission.