Shuang Shi Chou Fei (2019)

Yu Shishi is born with a scar across her face and cast off by one betrothal after another. Reborn with the medical knowledge of her past life, she heals the scar, only for the Emperor to decree her marriage to the Thirteenth Prince, a man feigning illness to keep the court at arm's length. Neither of them expects the other to be worth watching.