She was originally the legitimate daughter of the prime minister of the dynasty. She had made an engagement with the prince early, but on her wedding night, she attempted to assassinate the prince, implicating the nine clans.
When she opened her eyes again, she knelt on the snow and bowed her head deeply, seeking only revenge. She picked up the iron sword with her hands that were red from the cold, and it became his sharpest weapon.
"A'yu," he lowered his head and held her blood-stained face, "what do you think you and I want?"
She raised her finger and pointed at the imperial city in the distance. He smiled, let go and stood up, throwing down the white handkerchief. The handkerchief covered her face, stained with blood.
Concept: The male and female protagonists use each other to save each other