The letter

There was a more powerful kingdom than Claude's it was the crystal kingdom it was ruled by Queen y/n
And Claude council have decided that it would for good for Claude to wed y/n since the crystal kingdom resources can benefit the kingdom and since Claude had no objection about it since he would benefit from it and would just ignore y/n
So they sent a letter to queen y/n it was asking if she would be willing to wed the emperor(Claude) and form an alliance. And she had accepted the proposal
Soon she was riding to the obelian empire

Find out how Claude start to fell deeply in love with queen y/n of the crystal kingdom

And how trouble starts to arise in the obelian empire