During the reign of Emperor Da Zhou, the political situation was turbulent, and treacherous officials held power. Bu Liang Ren, a secret assassination organization directly under the emperor, suddenly lost its leader overnight, and their chief, Yuan Tiangang, resigned with a letter. Lost and directionless, Yuan Tiangang, guided by a brocade pouch left by his friend Li Chunfeng, arrived at the Anle Pavilion in Chang'an, only to discover it was a brothel. What followed, with the appearance of those seeking freedom, immortality, and power, set a new stage in Yuan Tiangang's journey…