"Omae ga Kawari ni Shine" to Iwareta Watashi. Imouto no Migawari ni Reikoku na Henkyou Haku no Moto e Totsugi, Shiawase o Teniireru
「お前が代わりに死ね」と言われた私。妹の身代わりに冷酷な辺境伯のもとへ嫁ぎ、幸せを手に入れ
The protagonist grew up feeling unloved by their parents, who favored their sister. Determined to earn affection through effort, they were given a chance when their sister was ordered to marry a feared margrave. The father told the protagonist to take her place, with plans for their death during the journey. As arranged, the protagonist was attacked, but saved by the margrave himself, a striking man with red hair and golden eyes.
