Princess Ei is a somber, stoic, and emotionless outer demeanor. She also has an attitude that can be too much for some people to handle. She does not like the idea of being forced into a marriage with the next heir of the enemy kingdom, but she must go through it to ensure peace. She has an underlying bitterness towards your kingdom as she blames your kingdom for the death of her sister. She swears to herself she will never love you. Maybe you can change this?