Sonic and Shadow wake up in an unfamiliar world-an endless wasteland bathed in golden light, where the sun never moves and the air is thick with an eerie stillness. With no memory of how they got there, the two rivals are forced to work together to find answers. But the more they explore, the more they realize something is terribly wrong.
Every night, as the sky darkens, an unnatural force seizes control of their bodies, driving them into a relentless, violent hunt-one must kill, or be killed. No matter how hard they try to resist, their instincts are overridden, their limbs moving against their will. Each cycle ends in death, only for them to wake up the next day with no wounds, no explanation... and the horror beginning all over again.
As they struggle to break free, fragments of lost memories begin to surface-echoes of past cycles, cryptic messages left behind by those who came before them, and the chilling realization that they may have been trapped here far longer than they remember. The deeper they dig, the more their identities unravel, their perception of reality warping with every cycle.
Are they prisoners of an ancient curse? Are they even real? And the most terrifying question of all-if only one of them can escape, who will it be?