Akibaranger tells the story of three people being part of an otaku club and living in the new "Electric-Town" Akihabara. They have to fight a mysterious malevolent entity that swore to conquer Earth with cool gadgets created by a brilliant genius. However, the Akibarangers' ultimate goal is to become an "official" sentai team. The Akibaranger's secret base/hideout is a "Sentai Cafe," a Super Sentai version of the popular maid cafes in Japan.
As the Akibarangers bid farewell to Nobuo Akagi, Hakase’s half-brother Takuma Tsuzuki takes on the role of Akiba Red. As Nobuo is preparing to leave Akihabara for the United States, he comes to a shocking revelation about their world.
Nobou receives a DVD from the creator of the show telling them to review their mistakes for the show and if they do, they may be renewed for a second season…
Dealing with Luna quitting the team, Akagi learns that Yumeria got married during their time away from their life as the Unofficial Sentai, but her mother-in-law’s anti-otaku feelings create trouble for her. When Malsheena uses her own version of the Z-Cune to transform, and a monster spoils the Z-Cune Aoi film, it’s up to Yumeria to inspire Akagi’s delusions on a whole new level, but can they dodge the mother-in-law?!
Luna’s misunderstanding causes a twisted delusion where Super Sentai is an adaptation of America’s popular Powerful Rangers franchise! With the Red and Green Powerful Rangers teaming up with Malsheena against the Akibarangers and their “knockoff” Super Sentai, could this be the end of the Super Sentai franchise forever?!
As Super Sentai fanboy Akagi Nobuo, age 29, is hard at work in Akihabara, a woman named Hiroyo Hakase appears before him and asks him to “become Akiba Red!”
A drunken Nobuo attempts to save a girl from a pushy club owner’s advances, and transforms into Akiba Red. With this, the Akibarangers discover a new power! Following Hiroyo’s suggestion to try getting hammered, our heroes really nail their foe!
As Yumeria’s mother arrives for a sudden visit, Nobuo dives into a delusion based on Sentai family-visit episodes. Yumeria’s mother is anything but typical, though: she was a famous cosplayer in her own right! This hot mama is more than the Akibarangers can handle!
For the safety of the real world, Hakase disbands the team. Despite attempting to return to their normal lives, they are met by Malshina and a mysterious man who has their MMZ-01s.
With the mysterious Doctor Z now in control of Blatantly Evil Marketing Firm B, Hiroyo finally reveals the truth regarding the Akibarangers, the Delusional World and their connection to the Z-Cune Aoi anime, even as they find themselves against a tough new opponent.
With Nobuo’s discovery that their world is in fact a television show, the Akibarangers must subvert the final episode tropes to prevent the end of their world.
Nobuo is struck with disappointment at the discovery that Akibarangers’ feats are neither “Official” nor actually “real.” With Red unable to transform, Mitsuki and Yumeria struggle against a brutal foe. Then, the heartbroken Nobuo encounters…
Mitsuki explains that she is going to a martial arts training camp, and because of their drunken mishap on their last battle, Nobuo and Yumeria are asked not to enter any delusions while she is away. The next day, the duo go to Otamix for Yumeria to try out some new costumes, and when she does, the delusions begin…
Nobuo takes a job to deliver something for the studio director at Toei in Tokyo. For him, this is the Holy Grail for any Sentai fan. Thinking that they might learn to finally make the Akibaranger an official team, he takes Mitsuki along. After delivering the package, they meet the legendary stunt and suit actor Kazuo Niibori. Fascinated by his sword play, Mitsuki applies as an apprentice.
Discovering Akibaranger has become official at the cost of Dairanger, Nobuo tries to fix matters by himself, but he must ultimately reteam with Yumeria and an idol wannabe to deal with the new threat to reality.
After somehow escaping the Delusion, Malshina opens up her own Evil Base in Akihabara. Even worse, she has taken Hakase hostage. Can the Akibarangers stop her plans, and what is the connection between Malshina and Hakase?
A Toei producer calls the Sentai Cafe, telling the Akibarangers that he wants to make them an official Sentai team. However, Hakase is suspicious of the sudden timing of the call, but the Akibarangers travel to Ginza anyway. Meanwhile, Hakase tries to discover the secrets behind Malshina and the Moe Moe Z-Cune.
Visiting the Secret Base for the first time in nine months, Nobuo and Hiroyo recollect what happened during the previous battle… but their memories aren’t quite right…
Having found General Pain’s hideout, the Akibarangers fall into his trap and are Delusimported into a Grand Delusion where General Pain makes the rules! As they struggle to find a way out, they realize that they are experiencing another franchise trope: the defeat of the team’s mecha!
Withe General Pain seemingly trapped in his own Grand Delusion, things go somewhat back to normal, but Malshina talks General Pain into creating a new Alpaca Section Chief to eliminate the Akibarangers!
The Akibarangers confront Malshina, who has remodeled the entire reality to become the star of her own franchise in place of the Super Sentai! As the Akibarangers lose their will to fight, will Malshina’s new reality stand?!
After defeating Delu Knight by exploiting the defeat flags in the warped reality, a strange new hero appears to become the 4th member of the Akibaranger team! However, upon their return to Secret Base Cafe, things are still twisted as they discover their new teammate is intended to replace the Super Sentai franchise entirely! The grand final battle is about to begin!
As the final battle has come to a close, the memories come flowing back as Kozkoz and Hakase remember their friends’ adventures, but what is the future of the Unofficial Sentai?
As the Akibarangers try and figure out how they’ve replaced Dairanger as the 17th Super Sentai, they are attacked by an angry Kibaranger, who declares he’s now only a shadow of his former self, when suddenly, Malshina appears!
After General Pain creates a new mascot character that exploits Akagi’s weakness for super smooth shiny robotic girls, the Akibarangers are swiftly defeated and the effects leak into the real world! Can they find a way to train Akagi to overcome his weakness and defeat the latest threat to reality?!
General Pain creates a 3rd Goraiger who steals the justice-loving hearts of the other two Goraigers and turns them to evil! Thanks to Malshina’s meddling, reality now features three extra days in the week, and otaku activities are outlawed!