闇大公様を攻略します！
-Description
Having lost her parents, Aisha lived a miserable life with her only remaining family member, her younger brother, at her uncle's marquisate. However, after being blamed for her cousin's numerous blunders, she gradually became a scorned "villainess." Then, one day, she received an order from the royal family— to marry into the "Dark Duke House," feared throughout the empire, and investigate its inner workings.
"If you don't obey, your brother's life is in danger."
To protect her brother, Aisha married as a substitute bride, but what awaited her there was not the young Duke rumored to be "ugly and terrifyingly cold-blooded"... but a young man who was more beautiful than anyone she knew, clumsy and lonely.