Ever since a worldwide Blood Mist, calamity has reigned over the earth: mutant beasts run rampant, plants spread and grow in mad profusion, turning city after city into ruins. The survivors built base upon base, only to watch them swallowed, again and again, by the beast tides. Darkness spread across this land—and the end point of evolution was never hope.

Until the coming of a gray mist.

The black-haired young man came striding out of the fog, his smile unrestrained and blazing, the trench coat at his back stirring with careless ease; at one lift of his hand, ten thousand savage beasts condensed within the mist, ready to tear all things apart for their master.

He is deeper than the darkness, and more dazzling than the light. He is the most terrifying of tyrants, and the most merciful of saints. He is, in this calamity-stricken world, the first ray of light before the dawn.

"It's time for one last, greatest fog."