In her past life, Yoon Seo-ha was betrayed by her fiancé Kang Ji-hoo and her best friend Choi I-na. Reborn, she calls off the marriage and marries Kang Do-yoon. Six years later, conspiracies unfold as Jihoo and Ina return. Seo-ha discovers Doyoon was her savior, and the family moves to Switzerland.