Yuuta Hibiki wakes up in the room of Rikka Takarada and notices two things: he has no memories, and he can hear a mysterious voice calling his name from a nearby room. On further inspection, he finds a robot—which introduces itself as Hyper Agent Gridman—behind the screen of an old computer. Much to Yuuta's surprise, Rikka cannot hear Gridman, nor can she see the ominous monsters looming over a thick fog as it envelopes the town outside.
Another giant monster materializes in the city and proceeds to wreak havoc. Amidst the confusion, Yuuta is once again drawn to the old computer and merges with Gridman. Suddenly, he appears in the middle of the battle and is forced to fight the monster. Together with Rikka and fellow classmate Shou Utsumi, Yuuta forms the "Gridman Alliance" to defeat the monsters plaguing the city and find whoever is responsible for their emergence.+ More
Characters & Voice Actors
Gridman
Main
Midorikawa, Hikaru
Japanese
Hibiki, Yuuta
Main
Hirose, Yuuya
Japanese
Shinjou, Akane
Main
Ueda, Reina
Japanese
Takarada, Rikka
Main
Miyamoto, Yume
Japanese
Utsumi, Shou
Main
Saitou, Souma
Japanese
Anti
Supporting
Suzumura, Kenichi
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