戦場の聖女〜妹の代わりに公爵騎士に嫁ぐことになりましたが、今は幸せです〜

Unlike her younger sister, who is known as the Saint, Finne is rather unremarkable, and has been treated poorly at home. After being sent to a dangerous battlefield as a military doctor, Finne meets a critically injured duke knight named Leon and uses her healing magic to save him from the verge of death. Then, everything in her life starts to change dramatically…?! (Source: K Manga)