Reading The Lady’s Dark Secret manhwa, The Lady’s Dark Secret manga with alternative name: Devious Daughter of the Duchy / The Duke’s Dark Lady with Description: The protagonist, Estelle, has gone through a significant amount of hardship in her past life, growing up as an illegitimate child and suffering abuse despite being a powerful saintess. She was betrayed and sacrificed to the devil and suffered in hell for 600 years. After being given an opportunity to return to the living world and take revenge, she steals the body of the youngest daughter of the empire’s greatest house, Garnet, and is determined to bring devastating destruction to those who betrayed her. It appears to be a story about a woman who is seeking vengeance for the wrongs done to her in the past and is willing to take drastic measures to achieve it. Depending on how you choose to develop this story, it could explore themes of betrayal, redemption, and the consequences of seeking revenge.