Lu Feng, nicknamed Little Six, is transported to the Great Xia imperial palace and becomes a fake eunuch with a mysterious past. After being assigned to the Empress's quarters, he discovers that the Empress is incredibly beautiful. With the eunuch chief holding power and the Emperor under house arrest, Little Six must cling to the Empress for survival. However, he inadvertently offends the Imperial Concubine and is summoned to her chambers, only to discover a shocking secret about her identity. The Empress demands, "Little Six, you're not allowed to go to the Imperial Concubine tonight!" while the Imperial Concubine insists, "Little Six, you must come to my chambers tonight!"