悪役令嬢の継母は荷が重いので、全力で幸せルート目指します

お見合いの相手はイケメンすぎる悪役デューク（仮）。The matchmaking partner was the villain Duke (provisional) who is too handsome. I, Barbara Seitel, am a reincarnated person from modern Japan.It's been 18 years since she was reincarnated into the world of light novels she loved so much when she thought she died in an accident. She grew up to be a young daughter of a count of this world,Finally, when I had a happy marriage meeting this time,The opponent will plunge this country into chaos and fear in the future in this world.The worst villain, Duke Harold!? If I fall in love with this person, I and my family will be ruined.Even though I thought so in my heart, the duke was so refreshing and handsome,My heart is pounding, I can't stop the rising feelings... When this happens, he and his stepdaughter (=villain daughter), who is planning to do evil things with him, are all together,I have no choice but to aim for the happy route with all my might!? Avoiding bad endings is tough! !