Once upon a time there was a "Giant of Light" who was responsible for defending world peace against the threat of giant monsters and alien invasions. He was Ultraman. He had established a connection with scientific expedition member Hayata Susumu during his mission and left the earth after completing his mission. Today, mankind has entered an era of prosperity, but this was just an illusion of peace...Now, the world needs the power of the "Giant of Light" again. Just then, a new hero appeared, who inherited the gene of light. But he is not tall, a middle-aged, sentimental high school student wearing a metal-powered uniform. His name is Shinjiro Hayata, the son of the first Ultraman Hayata Susumu. Shinjiro Hayata overcame all difficulties to become the new generation of Ultraman, and a new story unfolds.