Ariel Midaris, at the tender age of three, was once cast out of the ducal family for lacking the power of a saint.

The reason: Ariel was originally born a duke's daughter, but her father died shortly after her birth. Her mother, perhaps out of grief for her lost husband, quickly remarried, inviting her stepfather into the ducal household, and subsequently gave birth to Sophia, who possessed the power of a saint.

When Ariel turned three, her mother also passed away, and her stepfather and Sophia began to exercise authority in the ducal household.

As a result… Ariel, who possessed no saintly powers, was cast aside, effectively expelled from the ducal household.

Fortunately, she was taken in by Aunt Palom, and despite living in extreme poverty in the slums, Ariel grew up healthy and strong.

One day, when Ariel turned eighteen, her stepfather, having learned that Ariel's saintly powers were sealed, wished to confirm if she truly possessed them and summoned Ariel back to the ducal household.

It seemed as though a happy life would now await Ariel… but reality was not so kind.

Ariel's powers remained sealed, and she spent her days enduring terrible treatment in the ducal household.

Insidious bullying from Sophia, attempted rape by her stepfather… One day, after enduring days of tears, Ariel was married into a count's family, as she had become an inconvenient burden to be foisted upon them.

From Riordaldo Granvells, the legitimate son of the count's family she married into, she was welcomed with exceptionally kind treatment, a stark contrast to her life in the ducal household.

Ariel was in high spirits, but a command for her assassination arrived from the ducal family addressed to Riordaldo…

Triggered by losing her life once, Ariel, whose sealed saintly powers were released, fully embodies the role of a villainess and returns to the ducal household.

This is a story where Ariel condemns the infamous ducal family, transforms it for the better, and encounters wonderful men.