Three computer-savvy kids, Naoto, Yuka and Ippei created their own videogame superhero, but then discover it possessed by an inter-dimensional police officer, Gridman. Pursuing an evil program called Kahn Digifer, he merges with Naoto and fights Kahn Digifer's digitized monsters in order to prevent the computerized demon from wreaking havoc on the Human World.
Masaya Obi, Jun Hattori, Takeshi Sudo, Takeshi Sugawara
Hikaru Midorikawa, Masaharu Sato
Yasushi Hirano, Mie Hirano, Hiroyuki Kawasaki