I recommend 'Little Cutie Concubine: Black-bellied Prince, Please Wait' and 'Imperial Physician Does Not Become a Concubine' to you. These two novels were about the plot of the female protagonist transmigrating to become a doctor. " Time Travel Little Cutie Concubine: Black-bellied Prince, Please Wait " The female protagonist broke off the engagement and the prince became a princess, and she signed a marriage agreement with the Ice Mountain Prince. Meanwhile, the female lead of " The Imperial Physician Is Not a Concubine " was reincarnated as a princess consort. With her medical skills and the energy left in her body by the thousand-year-old snake demon, her status rose from then on and she played with the world. I hope you like my recommendation.😗