The Powerful Eunuch Who Ruled the Realm, Starting with a Night with the Empress

Qin Yu transmigrates to the Great Qian Empire and somehow becomes the empress's personal eunuch. Thinking he's dreaming, he immediately sleeps with the empress. And so, Qin Yu becomes the only person who knows the empress is a woman! “Do you want to live?” “I do!” “Good! From now on, you'll take my place. When the empress is expected to spend the night with the empress consort, you'll have to handle it!” “And Consort Ming, Consort Xian, Consort Shu... My identity must stay hidden. You know what to do, right?” Qin Yu suppresses his excitement. “Your Majesty, leave these tough jobs to me. I'll take care of them for you!”