In order to make Clayen, the daughter of Count Macarena, the prince's fiancée, Karuna, who has lived her life pretending to be Clayen, committed all sorts of bad things. The day she finally became the prince's fiancée, a sharp dagger sent by the Count pierced Karuna in her stomach. Ah, what a cold feeling. I prepared for this day. The promise that you can turn your life back! But why didn't I go back to the past, and why is it the next day? Why did my surroundings stay the same, yet I'm the only one who returned to being a child? And why are you doing this to me? Duke Bikeld, who even sent an assassin to me as we tried to poison each other? We couldn't manage to kill each other, weren't we the best of friends? “I have finally found you, my mate.” Shouldn't you be saying, “Die, my friend”?The villainess caruna has become a child

Soo-ah is about to marry a sweet man named Hamin. In front of her is Lee Gyeom, whom she has been crushing on for 19 years. Six years ago, Lee Gyeom left for abroad without saying a word, and for 19 years he refused to confess, He proposes to Soo-ah, who is three months away from getting married... “If you marry him, you will die.” Surprised by the situation, Soo-ah keeps him at arm's length, but he begins to intrude into her life. “Why are you doing this now? Once, I loved him so much, but he hated me so much. Now, the man who promises to marry me and loves me only for me, Hamin. And the woman who is loved by both of them, Sua. The strange fate of three men and three women over 49 regressions.