Watashi no Shiawase na Kekkon

Despite being born into a noble family, Miyo lost her birth mother at a young age and grew up being abused by her stepmother, stepsister, and father. When she finally receives news that she's to be married off, she finds out that her husband-to-be is Kiyoka, a soldier with a reputation for being cruel and heartless. In fact, he's had numerous previous fiancées who have all fled his household; none lasting even a mere three days.