Ikki Igarashi and his demon partner Vice had been called in to deal with a situation. This time, it was just a regular Deadman, that seemed to resemble a stag beetle. "Looks like, this one will be a cinch.", Vice commented. "Hey, Ikki. We won't have to do much to get rid of this guy."
"Right.", Ikki nodded as he took out one of his basic Vistamps after donning the Revice Driver. Rex! "Henshin!" He stamped the Vistamp against the screen on the Driver, causing it to burst into life. Come On! R-R-R-Rex! He placed the stamp into the Drover and turned it, causing him to transform into Kamen Rider Revi, while Vice materialised as Kamen Rider Vice. Buddy Up! Ohin, Shonin, Rolling, Going! Kamen Rider Revi! Vice! Revice! "Let's do this in one shot."
But as the pair ran in, a crowd of ordinary looking people, some of them armed with unusual looking hammers, ran forward, attacking the two Riders. "Hey, what's with these guys? Don't they know heroes when they see 'em?", Vice asked with annoyance, before his eyes flashed. Now, when he looked at those people, he saw some grey coloured humanoids, with rainbow coloured faces. "Whoa! These guys are more rainbow than people. What's up with that?"
One of the creatures then turned towards him, advancing menacingly. "You… saw.", it burbled out before it took a swing at the demonic Rider, knocking him back.
The fight was then interrupted as everyone involved heard the sound of festival music starting up. They then saw a man in a red costume with a ponytail on his helmet riding a motorcycle, which was mounted on a palanquin held up by a group of bodybuilders. All of a sudden, the man laughed while waving a paper fan, before launching into a dramatic speech. "Hey, all! It's a festival! Even a chance meeting can lead to a deep link. Even the pebble you stumble upon links to something. Dancing together links us together. This world is a paradise! I'll blow all your worries away! Now laugh!" He then resumed laughing.
"Hey, he stole our thing.", Vice complained. "We were doing the rhymes long before he showed up."
Ikki was more confused than anything. "Who is this guy?"
It was then that the figure noticed them. "Oh, forgive my rudeness." He stated, leaping off the bike onto the ground. Don Momotaro! "Coming forty from a peach, Don Momotaro!" Yo, Nihonichi (Japan's best)! "Now, come my companions."
"Eh, companions?", Vice asked. As if on cue, 4 differently coloured, differently shaped figures leapt in. "Whoa oh, just like that fairy tale."
The 4 then started to introduce themselves, starting with the blue one, who had bulky arms covered in fur. SaruBrother! "Farewell to Ephemerality, SaruBrother!" Yo, Mukimuki (Brawny)!
The the yellow one, who had large shoulders covered in spikes, began beating the rainbow men back with a club. OniSister! "Master of Manga, OniSister!" Yo, Oni ni Kanabou (Giving a metal club to an Oni)!
The an inhumanly small fighter, in a black costume, ran forward and jumped at some of the enemies, knocking them down. InuBrother! "Number Woof at Getaways, InuBrother!" Yo, Wonderful!
"Kenkenken!" The last of this unusual group, dressed in pink and sporting wings and inhumanly long legs, appeared to knock down more of the grunts, first be flying in, and then by kicking them away when he landed. KijiBrother! "This Bird is Dependable, KijiBrother!" Yo, Tricky!
With most of the grunts knocked back, the 4 newcomers then pointed their guns and pressed buttons on top. Parley Time! "Avataro Sentai…"
Don Momotaro then ran forward, spinning a gear on his sword. Hey, Hey, Hey Come On! "Peachy Resolution!" He then delivered a slash attack at the same time the others fired their weapons. Hissatsu Ougi! Momotaro Zan!/Doburako!
As the grunts that appeared human to normal eyes exploded, the 5 turned around to finish their declaration. "Don-Don-Donbrothers!"
It was at that point that Ikki's younger siblings, Daiji and Sakura, made themselves known, having seen what they perceived as 5 people cavalierly executing a crowd of people. "Hold it right there.", Sakura called out. "How could you just kill all those people?"
Vice tried to defuse the situation. "Hey, wait a mo'…"
But she ignored him, as did Daiji, who took out his personal Vistamp. "We"re going to need all of you to come in for questioning." Bat! "Henshin!" He placed the Bat Vistamp against his Two-Sidriver Confirmed!, before inserting it into the Live Gun component. Eenie meenie miny! (Mo!) Eenie meenie miny! (Mo!) He then fired it, transforming into his own Rider form. Versus Up! Precious! Trust us! Just is! (Bat!) Kamen Rider Live!
Sakura then proceeded to do likewise with her personal Vistamp Cobra!, inserting it into her Libera Driver. What's Coming Up? What's Coming Up? "Henshin!" She pushed the stamp to the side, transforming. Liberal Up! Ahhhh! Going my Way! Kamen Rider! J-J-J-Jeanne! "Let's go!"
Of the 5 Donbrothers, OniSister was the first to react. "Eh? Who are these guys?" The fight then began in earnest, with Sakura going after her and KijiBrother, throwing some fast kicks and punches, which the pair managed to duck out of the way of. "So, we're going for martial arts, huh?" She took out one of the Gears from her belt, inserting it into her Donblaster and spinning the wheel. "Avatar Change!" Yoi! Don, Don, Don, Don, Donburako! Ohranger! She then fired at the sky, causing it to open and causing her to change into a different yellow suit, lacking armour, with a white collar, golden hieroglyphics one the cuffs and a visor shaped like an equals sign. She still retained her belt. Yo, Choriki Sentai! "Now we're even." She then went in to battle, swinging a pair of nunchucks.
"How did you do that?", Sakura asked as she found herself on the offensive. But she quickly recovered and managed to turn it into a fistfight, with both sides managing to land punches on each other. "You went from a rabbit to a… shape?"
"I am not a rabbit!", OniSister growled as she put her fingers up to her head and jumped up and down in frustration. "I'm an Oni! Why is that so hard to understand?"
From the side, KijiBrother observed the whole thing. "Perhaps I should get in there." He took out a Gear from his belt, using it in his Donblaster. "Avatar Change!" Yoi! Don, Don, Don, Don, Donburako! ToQger! Henshin Itashimasu (Now Transforming)! He fired upwards, with Sakura observing him turning into a much more normal-shaped female body, with a number 5 on his chest, a visor resembling a train track and a skirt. Yo, Ressha Sentai!
As KijiBrother took some shots at Sakura, she managed to stand her ground against the two pronged attack. "If you're gonna go all out, then I'll have to as well." She took out a second Vistamp. Kujaku! She inserted it into her Driver, pressing the button on top. Re-style! Weaponponpon! (Ponpon!), before swinging it to the side. Re-buddy Up! Ahhhh! (Kujaku) Ja-Ja-Ja-Jan! She summoned a pair of hand fans and continued the fight.
Across from that fight, SaruBrother and InuBrother were facing Daiji. "I'm getting real tired of people declaring me the bad guy.", the latter sighed, as he hid behind a bench.
"Perhaps we could try something more reasonable.", SaruBrother suggested, standing up and putting his hands up. "I surrender. Now then, perhaps we could talk."
"Oh we'll talk alright.", Daiji said in response as he took out another Vistamp. "After I've taken on your canine pal with a canine of my own." Jackal! He inserted it into his Live Gun, firing. Versus Up! Overdrive, Power Dive, Kamen Rider Live! (Jackal) Now sporting different shoulders, a different head, coloured pink and silver, and with green accents where his yellow ones were, Daiji charged in.
Ryusoulger! Ryu So Cool! InuBrother now stood up, but he was wearing a black and silver suit with a logo that resembled open jaws and a helmet resembling an arthropod dinosaur with spikes. Yo, Kishiryu Sentai! He pulled out a sword and slashed at Daiji. "I don't need a collar or a lead. I won't be sent back to the kennel!" He then brought the jaw of the dinosaur head on the sword's hilt up and down a few times. Sore! Sore! Sore! Sore! Sono chōshi! He raised the sword up as it charged with energy, before bringing it down to knock his opponent back. Ken Bom!
"I guess it can't be helped.", SaruBrother sighed as he decided to use a different Gear. "Avatar Change!" Yoi! Don, Don, Don, Don, Donburako! Lupinranger! He pointed upwards, firing to summon the pulse that changed him into a blue hero with a cape and a downwards pointing arrow. Kaitou Change! Lupinranger! Yo, Kaitou Sentai! He ran forward and fired a few shots at Daiji, disorientating him.
Meanwhile, Don Momotaro had avoided fighting Ikki and Vice in favour of going after the Deadman with the pair. "Arrest! Arrest!", the Deadman growled as it charged forward, delivering a series of energy slashed at the three, scattering them.
"Call me crazy, but I don't think that a Deadman ever talked during an episode of the show.", Vice commented.
"You're right.", Ikki nodded. "Though I don't know what you mean by 'show', I know they only talking Deadman is a Pahse 2 or higher."
"I don't really know what a 'Deadman' is.", Don Momotaro added. "But I know that something led me to this creature. And I sense it's not something I can form a relationship with. So let's work together to destroy it, Revi, Vice."
"You got it.", Ikki nodded as he took out another Vistamp. Brachio! "Let's go at once." He then pressed it against his pad, as he took the Rex stamp out. Come On! Bra-Bra-Brachio! He then initiated the full transformation, turning the two into their Kamen Rider Zi-O based form. Buddy Up! Saidai! Saichou! Saiko de saikyou! Brachio! Iwae! Nagaki ou no tanjou o (Buddy Up! Greatest! Longest! Oldest and strongest! Brachio! Rejoice! For the birth of the long-necked king!)!
"Avatar Change!", Don Momotaro placed another Gear in his Donblaster, spinning the wheel. Yoi! Don, Don, Don, Don, Doburako! Zenkaiger! He then pointed up and fired, transforming into his primarily white immediate predecessor. Babang, babang, babang, babang, babababang! Zenkaiger! Yo! Himitsu no Power! "Let's fight!", he stated as he ran forward, firing a flurry of shots at the Deadman, knocking it down, before he leapt in to kick it. He was then followed up by Ikki and Voce coming in and delivering several powerful punches, knocking the creature down. "Alright, finish him."
"Got it.", Ikki nodded as he pressed against the Brachio stamp twice. Brachio! Stamping Finish! He and Vice leapt up into the air, coming down together with a 5 mark on Ikki's left foot, and a 0 mark on Vice's right.
At the same time, Don Momotaro, still in the form of Zenkaizer, pointed his Donblaster, before pressing the button on top. Parley Time! Zenkaiger! He then spun the wheel back and forth several time. Hey Come On! "Don Zenkai Finish Buster!" He then pulled the trigger. Yo, Donburako!
The shot fired and hit the Deadman at the same time as the Brachio Stamping Finish. "Arrest!", the monster cried as it fell backward.
"Alright everyone, even though his is text-only, we can still do this.", Vice stated. "All together, 3! 2! 1!" The Deadman then exploded. Medatashi Medatashi (And they all lived happily every after)! "Wait a minute, who created that Deadman?"
"I don't know.", Ikki said in response. "Hey, Mr. Don Momotaro…" But when he turned around, all 5 of the Donbrothers had vanished completely, with both Daiji and Sakura standing there confused. "Where did they go?"
"I don't know.", Daiji answered. "They just vanished when that Deadman was destroyed."
"Perhaps if we can try looking for the contractor, they'll show up again.", Sakura suggested. "He could have been why they showed up."
As the Igarashi siblings walked away, the scene had been observed from afar by another trio: a man in an entirely blue suit, a woman in a revealing white dress and a man in a brown casual outfit, wielding a spear. These were the Noto, the Donbrothers' usual enemies. "I sensed the foul essence of human desire.", the man in the suit, Sonoi, stated. "But there was no human beneath it."
"A different type of demon to the Hitotsuki?", the second man, Sonoza, laughed. "That seems like it could be an interesting prospect, especially with these three in the picture."
"There is still a human creating that desire, if what they say is true.", the sole woman, Sononi, commented. "And they'll likely use that foulness to birth more like that creature. And I'd personally like to see the results of that."
"For now, we need to observe each of these three.", Sonoi stated as he indicated the three siblings. "For now, they are our best chance to stamp out this current infection."
And at a nearby police station, the officer on duty was pounding his fist against the wall. "Not enough!", he growled. "I need more arrests on my record." He picked up the Vistamp, which he had confiscated off a criminal on a routine sting operation a few months back, pressing the button on top. Kuwagata! He pressed it against his chest, birthing a second Deadman, exactly identical to the first. "I won't stay a sergeant forever! I won't." Unseen to anyone who lacked special means of seeing it, the red-coloured image of a dragon-like creature, with two blade-like spikes emerging from its shoulders, appeared behind him.