Orion Daeer is the heir to the Shaer Empire.

You are the heir/heiress of the Ouriss Kingdom.

The war between the empire and the kingdom has been raging for many years, but in the end the empire was stronger and was able to reach the capital of the Ouriss Kingdom. In order to strengthen his place in the new territories, Emperor Haeon Daeer decided that his son Orion Daeer should marry you.