The world has long forgotten the shadows that move beneath its light. Kingdoms rise, empires fall, but in the hidden layers of society, an ancient pact still breathes—a silent war between Hunters and Assassins.
Hunters seek balance. Assassins crave chaos.
But among them exists something far more dangerous: a man who belongs to neither side, yet walks both paths.
His name in the old tongue was Kurogane, a boy born in silence, raised in blood. To the world, he is nothing more than a ghost. To the underground, he is known by one forbidden codename:
Methuselah.
The immortal shadow.
Legends say he does not die. That each time his body falls, his soul refuses to vanish. He wakes again, faster, sharper, hungrier. None have lived long enough to prove the tale wrong.
But Kurogane himself knows only fragments of his curse. A limiter binds him—chains that keep his true nature asleep. He lives as a blade dulled by time, unaware of the storm caged inside his veins.
Until the night he is forced to choose:
His life… or the lives of those he swore to protect.
In that moment, the world will see not the Hunter, not the Assassin—
—but the return of the Hakaishin, the God of Ruin.
And when Methuselah awakens, blood and history will burn together.
The Black Dawn has only begun.