Irina Devin was abandoned by her family twice. Her biological father gave up on her because she wanted to live, and her adoptive parents abandoned her because they found their real daughter. Having spent so much time with her adoptive parents, she thought they wouldn't easily discard her even if they found their true daughter. To quell her anxiety, she even took on a subservient role, trying to endure in the Duke's household. However, the moment their real daughter was perfectly integrated into high society, she was cast aside.... more>>

The Duke's household, which had created the circumstances that forced her biological father to abandon her, had also failed to keep their promise to treat her father. Irina vowed to take revenge on the Duke's household for breaking that promise. And three years later, one day:

“I want to bring you back as my daughter.”

The Duke’s words made Irina realize that the time for the revenge she had been honing for the past three years had finally come. <<less