该剧讲述富有的企业继承人与普通办公室职员发生一夜情，由于意外地使她怀孕而只得与她结婚的故事。

辦公室職員美英在工作上只是一個便利貼女孩，但她在與富二代李健開始一段關係後，人生出現劇烈的變化。

The hard working, kind and timid Kim Mi Young 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 Gun. 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 Gun begins to show his growing affection for Mi Young, his first love re-enters the picture to stake her claim.