The Regent Prince's Peerless Physician Consort

A medical genius from the 21st century transmigrates into the novel she was reading, The Prince's Cruelty to His Disabled Consort, after overworking herself. Here, she begins a brand-new life: taking on her father and her father's concubines, and embarking on her true career as a poison doctor. She picks up her family's ancestral art of poison, treating the sick and saving lives, and thrives as she romances the regent prince. When she's bored, she can even find someone to test her poisons on.