The Heiress's Secret Deal

A fallen heiress, seeking truth behind her family's annihilation, infiltrates a prominent family as a housekeeper. Caught by the cold heir while investigating, she's forced to pose as his fiancée. Feelings blossom amidst family schemes. When her true identity is exposed, trust collapses. After a cold war, they join forces, exposing a family elder's conspiracy and clearing her family's name. Love triumphs, and they start a new life.