It was interesting. The dragon I asked answered everything honestly. It's only limited to what he knew but that's better than nothing.
He was separated with other dragons and giants from Earth #9. And since he wasn't interested in the wish, he didn't have any desire in climbing the tower. Being here is good enough for him.
In this floor, there are several factions. They're mainly from the world they're in. Some worlds actually send many soldiers into the tower in order to conquer it. And it's not just climbing to go to the top. It's literally to conquer each floor.
In this second floor alone, there are several huge factions that have spread to other rooms in this floor. They also made their factions on the upper-floors as well. It's to make those who want to climb to have easier time to climb.