Munou Reijou no Keiyaku Kekkon

Overview

"Sakurako, this is a contract..." In Shimanokuni, an autonomous region of Japan where supernatural powers are revered. In this land where everyone can use supernatural powers, Sakurako, the daughter of a baron, is "powerless." Compared to her younger sister, who possesses more powerful supernatural powers, she is treated worse than a servant and oppressed every day. With no hope for the future and nowhere to go, one day, a girl with no place to belong receives a marriage proposal from Nioroji Shizuma, the most feared supernatural power user of the time. He has pale skin and scarlet eyes, and is the most beautiful man she has ever seen... Sakurako is confused that she, a powerless person, was chosen instead of her sister, but Shizuma tells her that this is a contract marriage for the purpose of a "certain power" that only Sakurako, who is supposed to be powerless, possesses. A Japanese-style Cinderella story in which two lonely people, connected by contract, are drawn to each other! (Source: Starts Publishing, translated)

Source: AniList