With the expansion of the land to almost half of Deo, Nostria was in a crisis of lack of personnel to govern the kingdom. Luckily for the immature queen, Biane and Clemora decided to step in and aid her in maintaining the huge kingdom. Not to mention that the place was actually separated by a dessert, it would be hard to travel from one place to another.
On the other hand, with the new ruler, Sylviana immediately abolished the human-race only rule to become a multi-race just like the small Nostria. Of course, this kind of rule will be enacted immediately but the result will not be instant since they were taught from a young age that the other races were inferior to them. With that as a fact, the queen humbly asked the original Nostrians to have a merciful attitude toward them, otherwise, there would be infighting.
With the hectic situation and since the world kinda getting into a peaceful state, Lyon's whereabouts were something that not everyone he knew would expect him to be.