I divorced my husband who prioritized only his younger sister. I will raise my child myself. Who would hand over a child? Please never show your face to me again.

The noblewoman Diphérine, who entered into a political marriage, endures humiliating days as her husband Eld excessively prioritizes his younger sister Marilia, even interfering with evening gatherings and their wedding night. When Diphérine becomes pregnant, Eld and his parents, the Duke and Duchess, demand that Marilia be allowed to raise the child. Unable to endure this any longer, Diphérine flees the Ducal household...