[The Crown's Diamonds] This popular novel, which became a best seller in the world Cecilia was from, was the setting of the world where Celine Diamond lives. As Cecilia mentioned, in this novel, Celine was the main character who was overpowered. She was the daughter of the Duke, and she was a genius. She captivated readers with her methods that instantly solve problems and fight crimes with her money and power. She punished those who dare to stand in the way of her justice mercilessly. As the cold and badass main character, Celine was also loved by everyone, because since childhood, she had always been the best in the Euclase Empire. She would even be crowned the next Duchess because her brother who loved her relented and handed her the title of the clan leader. It was said that she