A marriage arranged solely for the family's benefit and to secure a heir. "As long as you bear my child, nothing else matters." Yeon-ah only wants to escape her indifferent husband, Won Sejun. “I’ll run away from you, from this house, to a place where no one can find me.” But the one and only opportunity she had hoped for brought nothing but frustration and despair. "...I have nowhere to go now." Confronted with Yeon-ah’s true feelings, Sejun decides to fix their broken relationship from the start. "After we dance the waltz, I'll give you a gift. The one thing you want the most." He realizes the love he never acknowledged. And now understands that, he must let her go because he loves her. "If our beginning had been different, would our relationship have changed?" "No. It would have been the same." A waltz-like romance, starting again at the end.