Saimori Miyo

Miyo is the eldest daughter of the Saimori family. Without exhibiting any supernatural talent, she had a very traumatic upbringing, being treated like a servant by her stepmother and younger sister, while her own father deemed her to be useless. Miyo is married off to Kudo Kiyoka, a "ruthless soldier" and the head of the famous Kudo family, just so she can be "at least useful" to the Saimoris. It is later revealed that she is connected to the infamous Usuba family through her mother, making her highly sought after for her offspring's potential for great supernatural abilities.

(Source: Wikipedia)