"You are under arrest as a suspect in the murder case of Mr. Han Jong-in." Seo-hee had only gone to visit her grandfather, so why this? Before the shock could even subside, she discovered her husband's affair with her cousin. "From now on, I'm going to take everything for myself. Even your share, Unnie." As everything felt surreal and her eyes closed... she returned to the past, ten years ago!? Seo-hee awakens to the sight of a university lecture hall. Seeing her cousin, who speaks to her so loathsomely, Seo-hee makes a decision: 'I won't let them have what they want.' She decides to live a different life. To do that, she first had to delete her ex-husband.