Astroganger

Let's Go, Ganger

The Blasters, who destroyed the planet Kantaros ten years earlier, begin moving on Earth as their next target. Dr. Hoshi sees their hand behind a string of strange incidents, and nobody will listen to him. When the giant Big Eyeber attacks the city, Kantaro merges for the first time with Ganger, the robot born from the living metal, and goes out to meet it.