"Do you know the easiest way for a poor person to become rich? It's becoming part of a rich family. That's why I became your mother." "And I became your husband." "I became your sister, didn't I?" Mother, sister, husband. People she believed were her precious family. Only on the day she meets a miserable end at their hands does Yun-seul learn the ugly truth: not a single one of them was truly her family. Just as her breath is completely snuffed out by these demons in human skin, "Yun-seul, marry me." She returns to the past, 10 years ago, when her husband proposed to her. Swallowing tears of blood, Yun-seul firmly resolves to carve her revenge deep into her bones. She vows to thoroughly deceive and trample upon those who became her family for money, forcing them to live in a reality worse than hell. The price for stealing my writing. The price for toying with my heart. The price for arbitrarily designing my life. I will make you pay dearly for all of it. You just need to sit back and take it.