Synopsis：Orphaned at a young age, Nam Yujin is raised by the three Nam brothers, bound by a promise that one of them will marry her when she comes of age. But when their long-lost biological sister Nam Sua returns, Yujin is cast aside and stripped of their love. Even after she marries her suitor Ha Jihoon, they dismiss her as dramatic and attention-seeking. Only when Nam Sua’s true nature is revealed do the brothers regret everything—but by then, Nam Yujin is gone for good.