For the first one... I do not know. It seems to be a circular system. The previous six had been left behind too, after all. Perhaps there is no greater power, but just the system. Or rather, that is one theory. The second, we fought each other and grew stronger. When we had collected the stars, we were able to fight the city itself. I can't say too much about this, you understand. As for why the number is six... who knows?

[ she might have purposefully misunderstood that last one. ]