Han-Gang (Kim Hyun-joo) is a successful lawyer but that does not satisfy her ambitions. This makes her relationship with her husband (Jin-Eon) worsening. Meanwhile, Jin-Eon met with Seol-ri when they high school general education class. Seol-ri personality much like his wife before. Hae-Gang encountered an unexpected accident and amnesia after the accident she became twin Baek Seok (Lee Gyu-Han), with Yong-Gi’s name (Kim Hyun-Joo). Again she falls in love with his ex-husband, whether this time she can conquer him to rediscover his happy or not?