The hundredth floor of the tower was a land littered with hundreds of volcanoes. The temperature of the hundredth floor was the highest out of all the other floors and it was the only EPIC rank dungeon in the tower holding the strongest beast in the tower.
It was taken as an official rule that no one was to go to the hundredth floor of the tower - even Reno wouldn't dare go to the hundredth floor. The reason for that was simple. The entire floor was the territory of that one beast and anyone who dared to come there would meet a gruesome death. There were no dungeons on the hundredth floor because the entire hundredth floor was already a dungeon with only one boss. That beast was the king of the sky and fire. an EPIC rank monster that stood at the pinnacle of the tower.
The great Dragon, Ragnarök.