Fire Emblem TH:The Two Empires (Fire Emblem TH X Byzantine Empire X RomanEmpire)

Warning contains swearing, genocide from the emperor to stop rebellions, some characters would die or be spared from the emperor, religious astray, battles that would be bloody, conquest like Caesar and Justinian. There maybe some hidden historical names and last names. By the way it's not Fire Emblem Cannon. It's like one of the greatest historical names of the Eastern Roman Empire came true and made the United Roman Empire. There will be a change in their religion and rules since they are in a magical world and it would be dangerous

The Adrestian Empire was thought to be the one Empire but it was later that everyone was wrong. From the East was called Moris, a land filled with sand and natives. A another Empire was discover in the lands of Morfis. This Empire called the Byzantine Empire was a Greek/Roman Empire who survived the Barbarian invasion. In 1180 an alternative world of Europe. A young man named
Y/n the descendant Justinian took the throne of the Empire and plan for the reunify Roman Empire but it was later that they were teleported into another world with magic and monsters. Y/n later decided to advance their economy and military even if they have to sacrifice their old cultures and religion. Y/n wanted the Empire to survive in the new world. Y/n for years sees a war so he decided to conquer the land and proclaim a new Roman Empire.