When her little sister Seorin took her own life, Seoyoon was convinced it was her husband Yeonsuk's deed. Through a full body surgery she changes her identity and approaches him as Arin, planning revenge by luring him. However as Yeonsuk's brother Jubin falls for Arin, Seoyoon's plans twist unexpectedly. Will she be able to succeed in her revenge, or will other emotions get in the way?
