the emperor suffered from a strange disease, and lu xiaofeng (played by lin feng) was ordered to investigate, which caused the ancient jinpeng dynasty, which had been forgotten for many years, to surface, and involved the remnant princess shangguan fengdan (played by lan xi). it turned out that the emperor was actually framed and poisoned, and the person who could detoxify was hiding in the jinpeng dynasty. it became lu xiaofeng's top priority. ccc。 people in the court were panic and undercurrents were surging. lu xiaofeng's investigation was already in a bottleneck and it was difficult to move forward. in the most difficult time, lu xiaofeng met the famous doctor hua manlou (played by zhang xiaolong) and the sword saint ximen chuxue, and the three formed a deep friendship. at the same time, a girl named ashin (played by zhang meng) has been silently supporting and helping hua manlou. even though she knew that hua manlou loved princess fengdan, she still devoted herself to everything without hesitation.