Ao never believed in monsters—not after being branded one since childhood. Exiled, he lives with his adoptive guardian, Kaisei Aizawa, amidst verdant valleys surrounded by desolation.
Humanity only had themselves to blame for the wretched landscape. Their war poisoned the seas. Their greed coveted the fertile and the green.
Their ambition set it ablaze.
One hundred years had passed since the war banished Talus to the skies. Doomed to chase the sun, the once proud nation survives as a floating city. But the fallen always hunger for more.
When the Talarians descend to claim the earth as their own, Ao escapes capture—but nothing is without its price. The only man he ever saw as family, Kaisei, is imprisoned instead.
Ao vows to rescue him, no matter the cost—even if it means taking a stand against the most powerful nation left on earth. He knows of the risks. He knows of the dangers. But never would he know that someday, somehow, he would finally believe in monsters.