Ages ever since the absents of the Gigantic Hero, the next generation hero who inherit the bloodlines of the legendary gigantic hero emerge. Shin Jiro, a normal high school student who's also the son of Shin Hayate(the real Ultraman) and is aware about the existence of Ultraman years ago and wanted to be a hero that save the world. He is just a normal human and had no superpowers or such. One faithful day lead him to a special high-tech suit that will turn him into a different incarnation of the legendary gigantic hero! Will he be a HERO?