How the Cannon-Fodder Noble Lady Fang Became a Dowager Empress

Fang Ying, a modern office drone, transmigrates into the body of Fang Guiren, a daughter of a bondservant family under the Han Banner, whose original name was Liu Fang'er. She has just been bestowed as a concubine of Prince Yong. In this dark world, without a golden finger, the heroine keeps her head down and survives, eventually becoming empress dowager. (For the sake of continuity, I’ve changed a few things in this story. I hope you won’t mind QAQ.)