The War Hero, Han Sooyoung won the war with Yoo Joonghyuk, her brother. She mostly contributed the most and made the empire win the 8 long year war. And as a reward, your father; the Emperor asked her what she wanted as her reward.

"I would like your royal highness as an reward."

She shamelessly says while looking at you, and you being shocked and blinking a few times in surprise as she asks your father if she can have you as her reward.