Hajiki finding his GAD in the dark feels like stumbling into the one thing that was always meant to be yours. The show knows its strength isn't plot, it's watching a kid and his impossible machine learn each other's language, moment by moment, in a world that's forgotten how to dream. That charm, that strange Nintendo-bright energy in a dead future, is enough.

Several centuries from now, Earth has used up its resources, human progress has stalled, and the world is split into zones called Units. Hajiki Sanada shares a home with his mother and sister in Night Town, part of Unit 74, where every light goes out at midnight. His life changes when he accidentally touches a GAD, a strange object that rebuilds matter in response to the emotions of living beings, with the size and shape of the result depending on those feelings. The GAD becomes an enormous robot, a Tekkoudo, which Hajiki names Lightning. He soon learns that other people have Tekkoudo too, and he has to figure out how to face those he senses are like himself. Expect a science fiction adventure built around giant robots.