The hard working, kind and timid Kim Miyoung has little in the way of education, beauty or wealth, but all that changes after a fateful night of accidental passion with the spoiled, rich heir of a family company, Lee Geon. Her insignificant existence completely transforms when she finds out she is pregnant and must tie her life to his in a shot-gun wedding. The couple decides to make the best of a bad situation, but just when Geon begins to show his growing affection for Miyoung, his first love re-enters the picture to stake her claim.