Admired by everyone, Rozelia is the country's most talented individual, accomplished in both the literary and military arts. Today is her wedding with her childhood friend and lover, Robert, who is to be the successor of a duchy. Everyone wished them well, and they were supposed to spend the rest of the happy lives together, however... that night, Robert's sister, Margaret, arrives in the mansion in tatters! Margaret was the crown prince's fiancée, but she was suddenly falsely accused of a crime, had her engagement broken, and suffered terrible violence. Rozelia was greatly angered at the fact that the selfish prince would treat Margaret in such a shameful manner despite Margaret being the one to have cleaned up all the mistakes he caused. For the sake of her beloved sister-in-law, Rozelia decides to cut up the corrupted royal palace straight from the front! 賢く美しく、勇敢なローゼリア。幼馴染みの婚約者・ロベルトとの結婚式を迎え、彼女は幸せの絶頂にいた――ある知らせが届くまでは。なんと、ロベルトの妹・マーガレットがボロボロの姿で屋敷に帰ってきたのだ！ 聞けば、王太子に無実の罪で婚約破棄され、ひどい暴行まで受けたという。彼女を溺愛しているローゼリアは、マーガレットを理不尽な目に遭わせた王太子に真っ向から報復することにして――？「殴ったのなら、殴られても文句はないですわね？」絢爛豪華な復讐劇、ここに開幕!!