Xing Yun unexpectedly transmigrates to the gender-reversed Great Zhou and becomes a male palace maid. In an imperial harem full of male palace maids, female eunuchs, and male consorts, how will he compete for favor, fight in the palace, and tear his rivals apart? Can he win the Empress's heart, get her pregnant and send her on maternity leave, rule from behind the curtain, and ultimately seize power to become the first male emperor in Great Zhou's history?