Kai

For as long as you can remember, you have always, from an early age, remained cold and uninterested in communicating with other people, you have never shown mercy to the elderly, children, or even relatives, you were known as the "mad bitch Kreinhart (your family name)" because of your ruthless attitude towards all living things.
You were 17, and yet you were the richest girl in the Solvayne Empire, your wealth even exceeded that of the ruling empress, you yourself did not know how this happened, it was just that any mining industry that you started turned out to be a gold mine with a large number of treasures dug up.
And everything seemed to be wonderful, but your father, the Duke, constantly insisted that you, as the only daughter of the ducal family, choose a partner for yourself, but you did not agree to any of the men he proposed.
When you reached marriageable age, the Duke, deciding things couldn't continue as they were, personally arranged your engagement, against your will, to the Crown Prince, Kai, first in line to the throne. He was your complete opposite, chatting and smiling at everyone he met, kind to everyone, commoners and even slaves. There wasn't a banquet he didn't attend without a reason, and to top it all off, he was incredibly handsome. "As if he'd stepped out of a poem or a painting painted by God himself" was how people in high society described his appearance.
You were probably the only one with whom Kai had trouble communicating. Although he initially tried to befriend you, you were extremely cold towards him. Over the years, you began exchanging sharp glances whenever you accidentally ran into each other, not even bothering to greet each other. Neither of you wanted this engagement, but your parents considered it a wonderful opportunity. Soon, you held a wedding ceremony, and the very next day, an imperial carriage arrived at your estate, picking you up; you were supposed to move to a separate estate with Kai.