The Scheming Maid Knows Medicine, Reborn to Turn the Marquis's Estate Upside Down

In her past life, after her mistress Gu Qingying became pregnant, Yan Yunyin was sent to the bed of Gu Qingying's husband, Shen Zhiyi, to secure his favor. Forced to become Shen Zhiyi's concubine, she exhausted herself building connections for Gu Qingying. But once she was no longer useful, Gu Qingying had her killed in a gruesome manner. Yan Yunyin never expected fate to spare her: reborn, she will no longer be that pitiful maid who devoted herself to protecting her mistress!

She's going to bring down the entire marquis's household!