Upon telling her comrades that she will not take part in any further delusions, Mitsuki explains that she is going to a martial arts training camp in Izu for three days. This, however, does not mean she will leave the team for good. On the other hand, Hiroyo tells the trio that the delusion amplification system does not work outside of Akihabara. Because of their drunken mishap on their last battle, Akagi and Yumeria are asked by Mitsuki not to enter any delusions while she is away. The next day, Akagi and Yumeria are living their normal lives while resisting the temptation to delude. The duo go to Otamix for Yumeria to try out some new costumes. When she dresses up as Mere, Akagi starts having delusions of his female comrades, Sayaka and Malseena cosplaying as various Super Sentai female characters. Suddenly, Chief Clerk Monzen-Nakach? Hashibirok? appears and uses a spell to purify all of the nerds of their vices, causing them to leave the store and live normal lives. Surrounded by a group of Shatieek priests, Akagi and Yumeria are forced to enter this delusion and change into Akibarangers. With one member missing, they must wait until Hashibirok? indicates a sign of defeat. Upon remembering that only the suit actor for Yellow Four appeared in episode 10 of Choudenshi Bioman, Akiba Red considers bringing Akiba Blue in the scene without Mitsuki around; Hashibirok?, however, does just that, having her attack them instead. Thinking that Akiba Blue has been brainwashed, Akiba Red and Akiba Yellow try to find ways to make her snap out of it, but to no avail. Right when she is about to finish off her comrades, the real Akiba Blue suddenly appears out of nowhere to intervene, which reminds Akiba Red of several "imposter" episodes of past Super Sentai titles. Malseena, who reveals herself to be the fake Akiba Blue, drops the act before leaving the scene, prompting the Akibarangers to destroy Hashibirok?. Back at Himitsukichi, Akagi and Yumeria shop online to buy a gift for Mitsuki as a token of gratitude for helping them. Mitsuki returns from Izu, but upon seeing that she has a set of Aoi keychains that were exclusively sold at a recent convention, Akagi and Yumeria begin to question her whereabouts. She embarrassingly explains that she really went to Izu, but admitted to going to the convention; hence her ability to enter their delusional battle at the last minute. This enrages Akagi and Yumeria, who chase Mitsuki out of the café.