My Dear Concubines, I Am Really Not a Eunuch.

A young man, Lin Yang, travels through ancient times and almost betrays his "second child" in the cleansing room. He is lucky enough to be rescued and sneaks into the palace. He is a tyrant and has no moral principles, but he has a harem of three thousand beauties. Let's see how Lin Yang plays tricks from a "little eunuch" to win the hearts of beauties, ascends to the throne, and has all the power in the world.