Vivienne, a restrained university literature professor, hides deep trauma from three years prior. Back then, she was forced to abandon her student Camille under gun threats from the powerful Sterling clan. Camille barely survived the stabbing attack and returns as ruthless school chair, signing a 90-day companion contract to force Vivienne to pay for her abandonment. As they spend time together, tangled hatred melts into lingering love. They gradually uncover the conspiracy engineered by Camille’s father and scheming marriage rival. A fatal car ambush arranged by the tycoon takes Vivienne’s life. Camille crushes the entire Sterling empire to avenge her lover, yet she is left trapped in endless lonely grief for years, haunted by the unfulfilled promise they once shared.
