Nine Thousand Years: Rise of the Shadow Emperor

When elite detective Lu Chen goes undercover in an ancient palace, he never expected to wake up as a freshly castrated eunuch! Armed with a chaos-fueled system that rewards him for stirring up trouble, his dreams of lying low are crushed. Now trapped in a cutthroat world of scheming concubines, power-hungry officials, and deadly martial artists, Lu Chen must use his modern knowledge and cunning to survive. Learning from history's most infamous eunuch, he transforms from a disposable pawn into the empire's true puppet master—proving that the greatest power doesn't sit on the throne, but whisper…