The Fallen King and the Contract Bride ~The Oppressed Witch Learns of Love After Death~

https://www.cmoa.jp/title/304913/

Born with the power of dark magic, considered the power of a demon, Claudia grew up facing discrimination and violence from those around her. She endured it all, longing to be loved by someone, but her wish never reached anyone; all she received was disgust and hatred. Scorned as a witch, and finally falsely accused and facing certain death, she still yearned for "love." Even if it was from a demon... she wished, and the one who took her hand was the cold-eyed king of demons. "If it fills your heart, I'll do it as much as you want—" Even though she knew it was for the sake of the contract, she was seduced by the affection directed towards her. Please, just for the duration of the contract, stay by my side—