The Heir's Secret Healer

For revenge on the Summers family, the female lead hides her divine doctor identity, marrying the Forrester family's sickly heir, pretending to be a fool. Her plan: ruin Forrester family. Discovering his illness is from his uncle and aunt, she cures him, helping him regain Forrester control. She proposes a deal: he helps her target the Summers family. When the uncle and aunt poison him, she reveals her divine doctor identity to save him. He learns of her Summers family abuse and sympathizes...