In the solemn Forbidden City, there was a bustling scene. Castrated by the Eastern Depot, Cao Renchao was deeply favored by the Emperor, holding a high and heavy position, always serving beside the Emperor. He often pretended to have no martial arts skills, but in reality, he kept his true abilities hidden. However, only the twelve inner court secret agents, arranged according to the zodiac signs from Rat to Pig, were established by the previous emperor and only took orders from the current emperor. Within the palace, these twelve agents were usually lurking in various places, gathering intelligence. They had practiced martial arts from a young age and were sent to the mountains to fight tigers and wolves. They could transform into various shapes to disguise their identities and were responsible for ensuring the emperor's safety within the palace. And Lingling Dog was the most special of the twelve secret agents, around whom a series of grievances and entanglements unfolded within the palace...