It’s the future, and humanity is worn out. Hajiki’s struggling to make ends meet on the hard-luck streets of Night Town, where everyone is fighting for the same thing: the Gad. If you’ve got a Gad, you’ve got the power of a robotic Techode at your disposal. And if you’ve got a Techode – you’ve got a chance.
Hajiki is about to find out just how much life can change when machine and man form an incredible bond.
Several hundred years in the future, the resources of the Earth runs out, and the progression of the human race has stagnated. The world is now divided into “Units”. A boy named Hajiki Sanada lives with his mother and sister in Unit 74, in a place called “Night Town”, in which all electricity is shut down at midnight. The key in this story is an object called the GAD. GADs have the ability to reconstruct materials while reacting to feelings of an organic life. The size and shape of the resulting product seem to be different depending on the kinds of feelings that the life possesses. When Hajiki comes in contact with one by accident, it transforms into a huge robot–a Tekkoudo, or “Iron Giant”–which Hajiki names Lightning. And soon he realizes that he isn’t the only one with a Tekkoudo, and must find out how to deal with those others who he feels are the “same” as himself.
In the near future, the poor dwell in a place called Night Town, where survival is the order of the day. While working for a delivery service, a boy named Hajiki stumbles upon a strange cube called a Gad, which turns into an iron man when his life is on the line. All he ever wanted was to live a decent life with his family, but now he must fight against others to defend all that he holds dear.