She is the princess of the day.
He is the former prince.
He shouldered the heavy responsibility of restoring the country and had to bury his feelings for her in his heart, but he didn't know that she was already on the chessboard.
After learning her identity, she chose to sacrifice herself between her relatives and her lover, only to discover that she, who was born without tears, would shed crimson tears after drinking the blood of her loved ones, which could save people's lives.
Intention: overhead