Uchi no Ojou-sama no Hanashi o Kiite Kure: Akuyaku Reijou Isabella Kouryaku KirokuNewウチのお嬢様の話を聞いてくれ ～悪役令嬢イザベラ攻略記録～; Listen to My Lady's Story: Conquest Record of the Villainess Isabella

They tried to teach Baroness Maria a lesson for her behavior. Crow, the young butler serving Duchess Isabella, is caught in her trap and severely injured. When Crow woke up, what came to mind was... Before being reincarnated into another world, I had memories of my previous life working for a black company. Confused by the differences between himself in this life and his past self, Crow eventually regained his composure. When you take another look at your situation, you realize it. In my previous life, I was treated unfairly at a black company. Even after being reincarnated, Lady Isabella remains arrogant, selfish, and proud. I am currently being tossed around by unfair treatment. Eventually, the anger I feel towards the accumulated injustice becomes unbearable. He plays naughty tricks on Lady Isabella under the guise of revenge, but she turns out to be easier to manipulate than he thought!? Furthermore, it seems this world is like an otome game where Maria is the main character and Isabella is the villainess... This is a story about a reincarnated butler who, while training his mistress according to his desires, also makes her happy.