Cinderella ga Kekkon shita no de Ijiwaru na Gishi wa Cool ni Sa... remasen?!

Once a dedicated and hardworking individual, I have been reborn as Petra, Cinderella’s stepsister. Though my sister is undeniably beautiful, she is also remarkably lazy and unkempt. Determined to see her wed the prince as the fairy tale dictates, my other sister and I devoted ourselves to her education. Unfortunately, our strict methods were misinterpreted by onlookers, giving rise to widespread rumors that we were cruel and wicked. Despite these misunderstandings, we ultimately s쳮ded in marrying Cinderella off to the prince, securing what should have been a perfect happy ending. That illusion shattered when I encountered a mysterious gentleman named Eric at the royal ball. He confronted me with baseless accusations, claiming I had bullied Cinderella out of jealousy. He has gravely underestimated his opponent; this so-called evil stepsister refuses to accept such slander without a fight.