The picture's the link

Thousands of years ago, Earth was in chaos. Monsters walked the land, terrorizing and attacking the humans. One day, however, these monsters woke to find they could no longer access Earth because of a strange, powerful barrier. The monsters retreated to their own dimensions, defeated, and Earth has been peaceful ever since.

But what happens when this barrier breaks?

The Gates of Heaven and Hell are thrown wide open.

Vampires, Demons, Werewolves, and other monsters that lived in the Depths of Hell are now aware that Earth is now ripe for their taking. It's unknown if these species have formed alliances with each other, or they're each in it only for themselves.

Angels and Spirits in Heaven are working frantically, trying to come up with a plan to protect Earth from those who wish it harm, but will they be in time?

Be aware and be known, this is the time of a new beginning, a time of war.

Who will come out on top?