Synopsis
Scientific experiments that went wrong triggered the collapse of civilization in a future world, leaving most areas reduced to a tribal state. That same event brought permanent changes to humans, dividing them into two distinct groups: those with mechanical enhancements known as Machines, and those carrying animal genes called Beast Spirits. Being a Machine himself, Black-Eyed Rock traveled the boundary between the two factions, seeking the truth behind this world while fighting to uphold everyone's convictions.