Yuusia city was a large sized city at the banks of the Mangshua river. It was one of the largest cities in the whole Ioikashi kingdom. The Ioikashi kingdom is ruled by five large clans. The royal clan had the highest authority and the clan leader of the royal clan was called the king. Other than the royal clan, four more clans held the second highest authorities and helped the royal clan in ruling the nation.
These four clans were known as venerated clans and the leader of the venerated clans took on the title of "Profound Venerable" and ruled over very large domains. Even though the royal clan was the overall ruler, the venerated clans almost had autonomy for their domains.
Yuusia city was the central city of the domain which was under the leadership of the Dayflower clan, one of the four venerated clans. On a certain day, this city welcomed the arrival of a golden haired, blued eyed elf girl.