Suterareta Daiyon Oujo wa Bokoku ni wa Modoranai

Born as the fourth princess of the Frall Kingdom, Miiril is considered either a disaster or a fortune for the royal family according to an ancient legend. Constantly ill and incurring enormous medical expenses, she is treated as a burden by her family. One day, her own family abandons her in a forest. She is found and taken in by the neighboring Jarnu Margrave family.