Twelve ancient gods demand humanity pilot them against each other, and the show treats this not as spectacle but as the most crushing compromise imaginable. The cell-shaded visuals make every mecha clash feel like watching stone titans collide in slow motion, weight and consequence visible in every frame. You watch people destroy each other with weapons that were supposed to save them, and the art style never lets you look away from what that costs.

In 2035, the heads of twelve ancient giant stone idols are dug up around the world, and with their help humanity narrowly escapes extinction from a disaster called the Equatorial Winter. The rescue has a price: the statues force people to build colossal suits of armor to serve as their bodies and demand that humans fight each other. As the recovered world takes shape, countries battle one another with these robots to settle the new world order. Japan's machine is operated by a 13-year-old boy and a 14-year-old girl, and their robot battles are only beginning in this mecha science fiction series.