My Man Entered the Palace for His Twin Sister and Became a Fake Maid.

Ye Qing travels through a fantasy world, and at the beginning takes the place of his seriously injured twin sister and enters the palace as a fake palace maid. He has to investigate the truth about his sister's injury in a palace full of crises, and also avoid being discovered. It can be said that he is walking on thin ice. Fortunately, he awakened the "undercover maid" system. As long as the identity of the male maid is not made public, you can get generous rewards: "Ding, on the first day of being undercover, you will be rewarded with the blood of the Immortal Phoenix." "Ding, on the second day of being undercover, I will be rewarded with Five Thunder Zhengfa." "Ding, on the third day of being undercover, you will be rewarded with the Great Five Elements and Small Three Wonderful Sword Formations." … A few years later, Ye Qing not only went undercover to become the Immortal Holy Emperor of the Great Yu Dynasty, but also became the only man among the peerless concubines of the Three Palaces and Sixth Courtyard... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.