The Emperor's Partner

After learning that her younger sister sacrificed herself for her, Shin-Joo dies in an accident after saving a child that reminded her of her sibling. She wishes that if there is a god, may he give her a life that she can spend for her younger sister, and her prayers are seemingly answered, she is resurrected as the Pope by the name of “Charles Hildegarde!” But before she even realizes what's happening, she is kissed by a man.

(Source: Copin Comics)