Clouds could not be seen for kilometers on end and the skies were completely clear. Yet anyone in Floating Cloud City would be able to see a heavy layer of darkness hovering in the skies to the east of them. It was so gloomy that it threatened to sink straight down, and if one were to look at it, it would cause that person’s chest to feel heavy and tight.

Boom! Boom! Boom!

The never-ending sound of explosions rang out from the east, and each explosion sounded heavier than the ...