ASUKA
The man called Hisame was a good swordsman, a capable Guard's Captain and as far as she could tell he was a dedicated son and heir to his family. He was also dedicated, especially in his pursuit of her. When she accepted the proposal, no when he proposed. Nobody seemed to be surprised. Her friends in the elite circle explained how Hisame has been pining after her all this years, how it was common knowledge how he turned down several women just because he was waiting for her.
Of course, his arrogance made him the same as the other noble heirs in the elite circle and the mask he wears is so convincing. If Sumire didn't tell her indirectly, she wouldn't have realized he was pretending. The mask he wears, that makes others think he is a gift to the world and expects others to think of him that way.