After seven years of marriage, a couple decides to call it quits—but their “perfect breakup” quickly turns into a messy battle of pride, jealousy, and unresolved feelings. As unexpected twists pull them back together, they must confront the love they thought was long gone. Can they truly walk away from each other?

Following their divorce, Hyun-Woo's ex-wife Sun-Young starts dating another man, who is unaware that the two of them were once married.

Myo Jin lost her parents in a mysterious accident when she was a child. For 15 years, she has endured, only thinking about revenge. The perfect opportunity presents itself, but..She is involved in a car accident and loses all her memories.