In a world where humanity has conquered aging, disease, war, societal segregation, and famine, one resource remains vital for survival: Biocores. These ancient materials fuel Kyslicium, the cornerstone of life and technology, harvested by the elite Wood Hunters.

Zehn and his crewmates embark on what is meant to be their final mission, a routine hunt for Biocores. But when an unforeseen incident occurs, each of them begins to experience inexplicable physical, emotional, and psychological changes. As their bonds are tested and their purpose questioned, the future of their world—and themselves—hangs in the balance.