'This phenomenon… I think I've read about this in one of the old books…'
Lu Sheng focused on the arch before himself. He suddenly remembered a similar record he had read in Libra City's library.
"This is… World Invasion?"
The Heavenly Devil World would frequently conjure up foul winds and bloody rain in other worlds. Hence, he was very familiar with such unique changes in the World Door.
Lu Sheng had seen similar records as well. When a world was being invaded, all World Doors would behave like this as a warning.
'Interesting… To think that there's someone bold enough to invade the Heavenly Devil World…' Among the known worlds, although the Heavenly Devil World was not the most powerful world Lu Sheng had seen, it certainly counted among the small cluster of most powerful worlds.