The Monster Duchess and Contract Princess

Reading The Monster Duchess and Contract Princess manhwa, The Monster Duchess and Contract Princess manga with alternative name: The Monstrous Duke’s Adopted Daughter / The Monster Duchess and the Contract Lady / 괴물 공작가의 계약 공녀
– Description: The Speràdo family has a hidden secret: the ability to use shadow magic. However, it has been a century since someone from the family has wielded it. When the Marquis Speràdo attempts to sacrifice Leslie for her more favored sister Ellie, he inadvertently awakens her own dark powers. In order to escape her family’s greed and abuse, Leslie seeks to make a deal with the Monstrous Duke: she will be adopted by him in exchange for her powers being put at his disposal. Will Leslie be able to break free from her parent’s cruel control or fall victim to their evil plans?