Koori no Koushaku-sama to Watashi no Shiawase na Keiyaku SaikonMy Happy Contract Remarriage With the Ice Duke; The Ice Duke and My Happy Contractual Remarriage; 氷の公爵様と私の幸せな契約再婚

Leonie Merdin, the daughter of a marquis, entered into a political marriage at the age of ten. By eighteen, she was supposed to officially unite with her husband, Cassius, and live happily ever after… or so she thought. Instead, Cassius publicly confesses his infidelity—claiming that the dazzling socialite Primrose is carrying his child. Heartbroken, Leonie decides to file for divorce, but her father refuses to allow it. Just as she finds herself cornered, Charles Claudia, known as the Duke of Ice and coincidentally Primrose’s former fiancé, approaches her with a surprising proposal—marriage. A story of betrayal, dignity, and unexpected romance begins, as two wounded hearts join forces in a society of schemes and secrets. (Sana Scans) https://www.cmoa.jp/title/359979/