The Hall of Thrones

The Central Palace was the place where the minds that ran the entire Oukiwa City came together, and also where matters that could impact the entire Empire were decided. 

Since the Emperor's job was to take a broader look at the entire Empire, he couldn't waste time on small things like criminal trials, bureaucratic laws, reports, financial administration and the like, so this was the nobles' job.

There were eight Noble Families: Hangen, Smakusa, Collalto, Sallow, Strogueher, Daren, Land and Ballard.

In the past the leaders of these families only met annually, but as the generations passed these meetings had to become more recurring, and so the Council was finally founded two generations before Ayumi Yamazaki took over as Matriarch of the Strogueher.

At first, she had to fight the looks of the other members, after all, she was not a pureblood noblewoman, but a woman who became a noble through marriage to Akai Strogueher, a somewhat unbalanced Elf.