Oops! The King Is in Love (2020)

Oops! The King Is in Love 2020 / 愿我如星君如月 2020 / Oops, My Heart is Beating , Zao Gao, Bi Xia Xin Dong Le , 糟糕，陛下心动了 , Yuan Wo Ru Xing Jun Ru Yue

Despite Yan Zhi Xia being the daughter of a minister, she must find a way to make some money. She can only work in the royal palace if she disguises herself as a male. She becomes Emperor Yan Jin´s personal eunuch, and with his help, is eventually promoted to Head Eunuch. Meanwhile, the emperor has been keeping her secret all to himself. (Source: DramaWiki)