Emperor Chongzhen, the last emperor of Ming Dynasty, on coming to power, distanced the mighty eunuch Wei Zhongxian and removed all his supporters. The country was in turmoil, but the heroes of jianghu had a legendary sword. Green Dragon Sword. The Qinglong Sword is a famous sword from the Tang Dynasty. One of the four famous weapons in ancient China, and is known as the "king of all weapons". This sword is made of iron and wood, It is 74 cm long and 3 cm wide. The scabbard is made of two pieces of hardwood, fixed by five groups of copper rings, with different patterns on the copper rings. There is a blue dragon on each side of the copper ring in the guard ring, so it is called the Green Dragon Sword.

明朝末年，崇祯皇帝即位后，削去大太监魏忠贤一切职务并清除其党羽，各地残存乱党趁此机会叛上作乱，江湖上有一青龙剑，为求江山永固，皇帝昭告天下，持此剑可无罪斩杀江湖逆党，江湖各派伺机而动，少年李一飞在目睹父亲因青龙剑被害后，遵循父亲遗愿拜入鬼渊堂门下，为父报仇却卷入更大阴谋的故事。