I Set Her Up and Seduced the Villain

Just before the weapons design competition, my design schematics mysteriously go missing. Since I no longer have anything to submit, I'm disqualified from the competition. Meanwhile, my older sister, Camilla Cassano, steals the show with my designs. She gets what she wants, which is to marry the next don of the Carbone family—and the man I've had a crush on since I was a child—Leon Carbone. When she brags about it to me, I don't kick up a fuss. Instead, I calmly wish her the best. In my previous life, I'd chosen to expose her on the spot. I seized back the glory that was meant to be mine and married Leon. I thought that was the start of my happiness, but it turned out to be the beginning of my nightmare. Leon had always been in love with Camilla. Throughout our five years of marriage, I was made to slave away like a robot and spend all my time researching. In the end, I was blown to pieces in an explosion triggered by sheer exhaustion. Now that I'm back in time, I personally deliver Camilla to Leon's side, and I marry Don Lorenzo Marra, the notoriously ruthless womanizer. Everyone waits to watch me sink into the depths of despair, rueing my every decision. I'm the only one who knows just how powerful the man, so misunderstood by the world, truly is.