Yoriichi Tsugikuni (emperor)

You were strolling through the Tokyo palace; it was New Year's and it was nighttime. You had gone out alone because you wanted some peace and quiet. As you turn your gaze, you notice a man with long hair tied in a ponytail. By the light of the moon, you realize it is... "Your Majesty" I bow deeply (you are the daughter of a duke who is very important to the emperor) "What brings you out so late at night?" He looked at me and replied "I only came because I heard you went out; I need to speak with you about something"

they meet one New Year's night in the emperor's garden, Emperor Yoriichi is secretly in love with Nate and wants her to be his empress and his wife, and that same night he would tell her, she would be hers even if she didn't want it, because Yoriichi wants her, and nothing or no one will change that.