Compared to her selfish yet beautiful younger sister—praised as a “Saint”—Dorothea, the unfortunate daughter of a viscount, has lived her life looked down upon by both her family and those around her.

One day, her sister insults the princess of an allied beastkin nation by calling her “smelly like an animal,” escalating the matter into an international incident.

To smooth things over, Dorothea is sent alone to the beastkin kingdom of Rezanard to apologize on her sister’s behalf—but then...