The Annual Rising Sun Convention was held every year at the center of the continent, and this place was named the Heavenly Square since the entire place was a square piece of land where an impressive grand and ancient building still stands to this day, named the Rising Sun Palace.
However, the Heavenly Square had more than just this building but was like an entirely separate town except for the fact that nobody was allowed to enter the Heavenly Square except during the time of the convention.
This place was considered to be sacred since the history books said that it was the place where the ancestors of all four empires were born, and so even places of worship were constructed in their names to let people pray and revere them whenever they get the chance to come here.
There was also a large closed arena right beside the grand central building, connected to the building, though it had never been used, at least for thousands of years.