During the Yuanxing period of Tang Dynasty, Prime Minister Wu Bocang was assassinated in Chang'an City. The whereabouts of his body were unknown. The murderer "Ye Ling" escaped after committing the crime. The Holy Spirit ordered Dali Temple to solve the case in three days, and the Jianghu organization "Wuxinlou" had to get involved, but the real murderer was still plotting his funeral. Where is Wu Bocang's corpse? Who is the murderer "Eidolon"? What is the purpose of the mastermind behind this? Can Dali Temple solve the case in three days? Why did "Wuxinlou" get involved in the assassination case?