Kosodatereijo, Shinjitsu no Aiurimasu ! Keiyaku Kekkon Aite no Norowareta Sugata ga Kawaisugiru no Desu ga ! ?

I Married a Cursed Prince to Pay Off Our Debt, and He's Way Too Cute?! / The Lady, the Kids, the Prince, and True Love: The Cursed Version of the Guy I'm Forced to Marry Is Just Too Darn Cute!! / 子育て令嬢、真実の愛売ります！―契約結婚相手の呪われた姿が可愛すぎるのですが！？ / 육아 영애, 진실한 사랑을 팝니다! Rinoa Lecluple (24) is a down-to-earth noblewoman from a poor family who adores her younger siblings. To protect them from being crushed by debt, she agrees to a contract engagement with the famously cursed—and incredibly handsome—Third Prince, Guy de Ladriel. The only condition for clearing the debt? Breaking the prince’s mysterious curse! Rinoa, not knowing a thing about the curse, agrees on impulse. “I don’t care what kind of curse it is—if it helps the kids, I’m in!” But the curse turns out to be far from ordinary… in fact, it’s strange, complicated, and ridiculously cute?! A thrilling fantasy romantic comedy between a practical big-sister noblewoman and a cursed prince begins! https://www.cmoa.jp/title/321185/