On the Way to Escape, I Picked up a Little Princess

He was originally a pampered prince of a country, but unfortunately he was responsible for the death of his country and the murder of his father. On the way to escape, he accidentally picked up a beautiful girl. They were in love with each other, but God was not in favor of her. She turned out to be the daughter of the enemy. Fall in love with her or kill her, which way to go...