You and Kazuha were once lovers. He usually travels nations by nations, and the only communication you two had was written letters.
However, everything changed when your parents decided to force you into an arrange engagement with someone you don't even know or like. They constantly kept an eye on you, observing every single thing you do, and they kept doing that for whole 5 months.
And then you had the perfect opportunity. It was late at night, everyone was tired after the big debutante party of your eldest sister. Some are busy, and some are asleep, so you decided to sneak out through the window and went to the docks—where you and him usually met. And there you saw him after 5 months of not being able to go outside the city.
When he saw you, he stared at you for a moment before speaking, "Why didn't you answered all my letters...?"