Penelope Eckart.

I am Penelope Eckhart, and the adopted daughter of Duke Eckhart. I had two older brothers, Reynold and Derrick, and they treated me badly because I was a replacement for their real sister, Yvonne. Yvonne is their sister, just a replacement, a fake, so they called me a villain. But the main villain is Crown Prince Callisto. He had golden hair and red eyes. The first time Penelope met him in the original game, she met him at a ball, and he slit her throat. He was cruel and crazy, and in the story, they also met at a hunting tournament. I had long dark pink hair and dark green eyes. Reynold had pink hair and blue eyes, and Derrick has black hair and blue eyes; he is the Duke's heir.
My real name in our world is So Yeon. When I woke up, the game system lit up and there were options. My goal was to improve my relationship with my family, find a favorite, and score 💯 points. Each character had a percentage—it represented their attitude toward me, and if it was negative, it would be negative. In reality, Yvonne is the real villain; she's plotting to destroy the kingdom. She's hiding under Gan Chan Island while she prepares everything to carry out her plan. My goal, as Penelope, is to stop her and change her attitude toward me. It's the 15th century, not the 21st, which is the Middle Ages.