Senior college student Theresa works part-time cleaning a luxury mansion to make ends meet. One night, she has a chance encounter with a mysterious man, only to later find out he is Leonard—her university’s cold and distant visiting professor, and also the powerful CEO of the Lu Group, a business empire. Facing her brother’s life-threatening medical bills and an unexpected pregnancy, Theresa is pushed to the edge. With no way out, she signs a marriage contract with Leonard.