My Little Bride

Boeun (Moon Geun Young) is an ordinary 15-year-old high school girl who worries about grades and has a crush on her school's baseball team ace, Jungwoo. One day, Boeun's grandfather orders her to marry Sangmin (Kim Rae Won) because of a pact he made with Sangmin's grandfather during the Korean War. Despite the grandchildren's opposition, they are forced to marry because of Boeun's grandfather's strong influence. However later on in the story,it is revealed that Sangmin actually loves Boeun. Boeun's undercover married life begins: She pretends that she doesn't have a husband and starts dating Jungwoo. Boeun believes that she can manage both men and live a double life.