The story centers on Yuta Hibiki, a first-year student with amnesia who lives in the fictional Japanese city of Tsutsujidai. One day, he meets the Hyper Agent Gridman on an old computer, who gave the boy a mission he must fulfill, just as he has to look for the meaning of those words and his memory loss. While that happen, the day reset by some reason and when someone die, they will not come back. In my opinion, it sound interesting, but it didn’t squeeze the reset as much as I wanted. It answered how the day is reseted and what would happen if those shadowing kaiyus were killed, but it could be used in a different way to give more character development to the protagonist. How? Killing more characters. Important characters. What I meant with the reset the day is that the fights of Gridman and the buildings destroyed during the fights disappear from the people’s memories and the buildings turn back as it was before the fights.
It reference attacks like: jump and do a karate chop in, mid of the air, to the kaiyu's neck or the shoulder, if it has one, or grab the kaiyu's neck then lift it while it rotate and throw it to somewhere. Also, huge explosions are common, after eliminating the kaiyu. The need of a secundary hero, as a copy of the main hero. Then the color design of the hero, being red, the most prominent of Gridman, then gray and blue. For Anti is the color purple as the prominent color of it design, then the gold and gray. But a really great reference to this genre of super hero in specific is the movements and reactions of some kaiyu is their limited movement and how it react and counterattack. It give the sense if the kaiyu was really a person wearing a costume of a monster. In the first episode, the kaiyu always has a neutral face and the mouth open, or when the kaiyu rotate the head to hit Gridman, it didn't has any expression but the same face.
Having as antagonist: a charismatic and human Akane Shinjo, although I can not say the same with Alexis Kerib, being a unilateral character as Gridman. About Akane Shinjo. Initially, she was a average antagonist, until she showed her human side, a depresses Akane Shinjo because everything she had done was in vain. Something that a person can empathize with it. While the protagonists: a forgettable Yuta Hibiki and Gridman, the friendly Rikka Takarada, and the most human of the group, Sho Itsumi. Why is he the most human? During the 12 chapters, he has done anything remarkable and he is aware of it, leaving him into a semi-depression because of his impotence. Something that we could not see much. Anti, an intermediate character who was mistreated by Akane Shinjo and Alexis Kerib, while Rikka Takarada and Samurai Calibur were the ones who took care of him. His move from antagonist to protagonist was not forced but great either, Anti was an antagonist because he wanted to be on the lookout for Akane Shinjo, he uses the argument of wanting to kill Gridman as an excuse to have a goal in his life, although close to the end he questions it, and then become a ally of Gridman.
The protagonist and the antagonist probably have a good or average designs, but they really don’t have a character development or just a little of character progression for some, like Sho Itsumi or Akane Shinjo. Yeah, she got one, near the end of the anime. We don’t know nothing about the protagonist, beside of their personalities, and a little bit of Yuta Hibiki’s past before his memory loss. The glasses guy said he was a nice guy. That’s it. How about the antagonist? Ha! None. We don’t even known how they got there. Or how Gridman and his comrades got there. Note, I haven’t watch the original source, so I don’t know anything about gridman serie beside this one. I think the only antagonist that I don’t really care of character development and progression are the kaiyus, except Anti, he is decent. They are just huge monsters with the only objective of destroying gridman.
