In their previous life, he promised, “In life or death, we will be together.” When danger came, he was as cold as snow. “Even if the people of the world must be buried with them, I wouldn't blink. Let alone giving up my own life.”
Reborn, they meet without recognizing each other. Even knowing she has an ulterior motive, he still falls for her. Whether it's dogged persistence or playing to his preferences, if it's already underway, there's nothing he won't do.
“I heard Your Highness has acquired quite a few beauties at your residence?”
“I've already packed them all up and sent them to Father Emperor.”
“All I want in this life is to be with one person, for all my life.”
“How fortunate. To meet you, I've already laid the groundwork for us to be together forever.”
“That's your sworn enemy. Why did you let him go?”
“If one day I leave this world before you, at least someone will still be there to protect you and give you a wide-open sky, just as I did.”