...
After the Great Cataclysm, numerous alien races emerged.
The war between humanity and the alien races has raged for a hundred years.
The nature of warfare has constantly evolved, from being dominated by firearms in the beginning to the current combination of high-tech melee weapons and firearms.
But no matter how things changed, the key to victory in any war always lay with the high-rank powerhouses.
The high-rank powerhouses of the alien races possessed all sorts of strange abilities, and their physical constitution was generally far superior to that of humans.
In a direct confrontation on the battlefield,
basically, one high-rank alien could fight three high-rank humans at the same time.
Of course, this didn't account for the geniuses among humans or aliens; it only considered the average high-rank combatant.
In fact, in a sense, the number of geniuses produced by humanity was higher than that of the alien races.
