"Shinde Miro" to Iwareta no de Shinimashita.

Natalie, who used to be a daughter of a count, was forced to marry a nobleman in another country. She was treated cruelly by her mother-in-law and her servants. Even her husband challenged her to die on her own if she can. She did--thinking there were nothing good in the last ten years of her life. When she opened her eyes, she was alive, back in her happy life which was ten years ago. If she tries, maybe she can change her fate...avoid the tragedy that awaits her. Natalie knows that soon she will lose her parents by a disease and a war, and she has to marry the Dark Knight, who saves this country... She won't let that happen again.