On the day of her first love’s wedding, Ji-yu accidentally answers “yes” and time-slips back to when she was 18. After losing her memory in an accident, she grows close to him again through constant bickering. As rivals and mysterious helpers appear, Ji-yu must choose whether to rewrite her past love or step into an new future with the man who risked everything to save her.

Cast: Kim Min-ji, Ahn Do-gyu, Baek Dong-hyun, Song Gyo-hyun