Ten years ago, an unknown magical energy tore through Earth’s atmosphere, mutating every creature it touched. Only humans remained unchanged—yet that immunity came at a cost. Now, they face the nightmare of living in a world overrun by terrifying, evolved monsters.
Rheo, a boy haunted by the loss of his mother during the early monster rampages, made a vow to protect his family. But fate had other plans. His father—a brilliant monster scientist—vanished during an expedition into a deadly monster lair. While the rest of the team returned, he did not.
Unwilling to accept the official story, Rheo sets out to uncover the truth behind his father's disappearance. In doing so, he mistakenly unlock a powerful legacy that would later shape his path.