On a world almost identical to Earth, missile drones gained consciousness and began steering humanity toward peril. Shaleen was the sole surviving ICHIRIN‑SHA, a unicyclist who roamed the planet on his battered motorized one‑wheel. While fleeing a swarm of hostile drones, he halted in an abandoned town and encountered a strange girl who was relentlessly hunted by the same machines. In a desolate landscape that echoed with their metallic footsteps, and the silence seemed to hide an secret.