"Esika" endures life with her in-laws, believing in nothing but love. However, her husband cheats on her with his own friend, and after suffering a major accident, she suddenly recalls memories from her past life.
She was none other than the villainess "Cheon Yeongryeong," and this world was the world inside a book.
Remembering her past life and the tangled fate she shared with the people who tormented her, Esika eventually vows to take revenge on everyone in the ducal family.