What better way to get at each other? Of course is, by ruining each other.  This is a story of two former high school girlfriends meeting again after so many years, at their children's school when the kids got into a fight. As the two women reconnect, long-buried hostilities, jealousy, anger and perhaps love... explode into a vicious discord that got them both loosing everything.

In a chance encounter, Taeyeon found out that she had a twin sister and the injured woman brought home by her uncle is indeed Tae ri. Tae ri had a hard life, and when Taeyeon found out about how horrible she'd been treated by her in law's; (The Jungs) she decided to take matters into her hands and deal with them in her own way.