The new life of Duchess Opal all started from a dusty attic. The house she resided in after a political marriage with the young Duke, Hubert, was full of hostility. There was also a woman named "Angel," who is treasured by the mansion's owner... Opal gained a bad reputation because of a disgraceful rumor and as a result, she was treated like a hindrance. However, the Duchess doesn't like losing, so it won't end like this! The woman is unrelated to the management of the territory. I will outwit those who let their guard down...! 埃っぽい屋根裏部屋から始まった、公爵夫人オパールの新生活。 若き公爵、ヒューバートとの政略結婚で住むことになった邸は敵意に満ち、そして邸の者に大切にされている『天使』と呼ばれる女性がいた… いわれのない不名誉な噂のせいで悪評の的にされ、邪魔者扱いされるオパールだったが、負けず嫌いな公爵夫人はこのままじゃ終わらない！ 女は領地経営と無縁。そう油断する者たちを出し抜いていく……！！　 オパールの未来は明るいものになるのか―