DISCLAIMER: The following is a fan-fiction based story.Engine Sentai Go-Onger, the Super Sentai series, Kamen Rider Build, and the Kamen Rider series in general are properties of TOEI, TV-Asahi, and Ishinomori Productions. Soul Calibur is property of Project Soul and Bandai Namco.
Please support the official release of the upcoming Super Sentai V-Cinema, Engine Sentai Go-Onger: 10 YEARS GRAND PRIX.
Lap 010: Riders on the Storm! [嵐の中でライダー!/Arashi naka de Raidā!]
(*Opening: "Be The One" by Pandora feat. Beverly from Kamen Rider Build*)
"It has been four months after the destruction of the Skywall and Pandora's Box. A new era of peace has been begun. But, when monsters from different dimensions start attacking, a new chapter of Kamen Rider Build's battles are about to unfold..."
[~Kono mama aruki-tsuzuketeru~] (Tonight again, I keep on walking)
[~Konya mo massugu hitori no ashiato tadotte~] (Down this same path when I come across a set of footprints)
[~Hateshinai dakedo kimi dake wa~] (Which never end. But you're the only one...)
[~Dokoka de matteru egao tayasazu ni~] (Waiting for me somewhere without ever losing your smile.)
[~There you will...~]
[~Be the One! (DA!) Be the One! All right!~]
[~Ashita no chikyuu wo nagedasenai kara~] (I won't give up on the Earth's future.)
[~Be the Lights! (DA!) Be the Lights! All right!~]
[~Tsuyoku nareru yo ai wa makenai~] (I will become strong! Love doesn't lose!)
[~Nanika wo tasuke sukutte dakishime~] (Help something, save something, hold something)
[~Kokoro ni furete todoku yo tsutaware~] (Touch my heart and get through, shout it out)
[~Be the One! Be the Lights!~]
[~Messeeji okuru yo hibiku yo~] (Send the message, it resounds!)
[Interlude]
Katsuragi (Sento): It's been already four months after the destruction of the Skywall, Pandora's Box, the downfall of Kozuki Kaguya, and the fall of the mysterious alien lifeform Evolto. Peace has been restored to the unified Japan. However, everything changed when an organization known as Neo Faust made its presence known. Kamen Rider Build, aka, Kiryu Sento, or rather...the person whose original memories restored, Katsuragi Takumi alongside SOLGU captain Izumi Goro and his team encountered a trio of giant dinosaur trains who happen to be Engines themselves and are linked to the Go-Ongers. We were able to earn the Ancient Engines' trust when we managed to catch them into the mountains, Goro was able to tame the giant machines by combining them into a giant robot. As a result, we were able to gain its trust.
Sosuke: Hey, why are you Kamen Riders hogging the spotlight? I thought we Go-Ongers are supposed to be the star of this story?!
Katsuragi (Sento): We're almost to the conclusion of the first act of the story on the point of view of us Kamen Riders. Since the second chapter up to this are recollection of the events before we got into your world.
Sosuke: I'm not used to this kind of prologues. But, I'm really excited to meet you Kamen Riders!
Katsuragi (Sento): Just be prepared for what's in stored for episode 10 of Engine Sentai Go-Onger: 10 YEARS PRELUDE feat. Kamen Rider Build.
[Interlude Ends]
After the G7 Riders and Build managed to fend off Neo Faust's forces who are attempting to take Kishamoth, T-Line, and K-Line for themselves, Goro managed to tame the three Ancient Engines by transforming them into their combined form: Kyoretsu-Oh.
That said, the Ancient Engines stayed with the SOLGU operatives until they return them to their original partner. According to Machalcon, most Engines have the ability to transport anybody in different separate dimensions as what the Engines themselves refer to them as Braneworlds.
After taming the Ancient Engines, Goro's team and Katsuragi in the forest listened to Machalcon's explanation of the so-called Braneworlds: composed of 11 dimensions - layered upon each other like the layers of a cake. The Engines and the Gaiark trio reside in the Machine World. Other worlds include the Samurai World, Junk World, and even Christmas World.
During Machalcon's mission to find his parents when Foundation X invaded the Machine World, the Human World he stumbled appears to be different than the dimension he knew. Due to the confusion upon witnessing a war-torn Japan following a civil war, and the debris coming from the remnants of the Skywall. That's where both Goro and Katsuragi deduce that the existence of two Human Worlds was the result that this world [Build's world] is separate from the mainstream universe.
"Barii Barii! So that means, there are two Human Worlds. Which explains this world was torn by a war over an alien artifact?", asked Machalcon.
"Yeah. Even though the Skywall is destroyed along with Pandora's Box, Japan here is no longer the same as the ones in the other parallel world.", Goro replied.
Meaning, the Braneworlds now have 12 worlds instead of 11. Due to the fact that the Human World is divided into two universes - the prime universe where Build's predecessors (from W to Ex-Aid) and other Super Sentai teams reside and the universe where the Skywall once existed.
"That means, going to the other Human World is going to take a lot effort.", Goro added.
"That's why I came here to give you a hand, Goro.", Katsuragi intervened. "If I can recall, me along with a fellow scientist Mogami Kaisei created an interdimensional gateway machine called the Enigma to get a sample of Ex-Aid's powers. However, when I found out what Mogami was planning, I sabotaged his plans and left."
"And, two months back, Kaguya tampered on his machine and succeeded in merging the worlds. Eventually, I managed to destroy the machine with the help of other Riders in the other side and separated the worlds again.", Goro brought up the last time he saw the machine.
Katsuragi also planned to create a machine that allows him and Goro's team to travel back and forth between the two Human Worlds. However, it's going to take him two more months for it to complete. Though, he and Goro will bring out a lot of effort to complete the dimensional gateway device.
Also, Katsuragi is also faced with other situations that only concerned with his past – namely the rise of Neo Faust and his father being alive, and more importantly is Katsuragi Shinobu connected to Neo Faust as well? But for now, he decides to give Goro and his gang a hand in order to bring the Go-Ongers into their home world to find their missing partners.
"While I had to focus myself finding out how my father is still alive. But for now, I'm going to help you guys help find the Go-Ongers and reclaim their Engine partners.", Katsuragi reaffirmed his decision.
Two days later…
In a karaoke bar in Touto, Goro meets up with Gentoku. The latter is surprise when he learns that Katsuragi is starting over again, and he still has many plans for the Rider System. And what's even more surprising that he knows that Katsuragi Shinobu is rumored to be alive.
"If what Katsuragi saw was his father, one thing for certain that Katsuragi Shinobu faked his death in the day what is supposed to be his suicide.", Gentoku said. "And, the fact he was observing you and his son fighting Neo Faust's Kaisers, there are more chances that he's working with Neo Faust."
"How did you find out that Katsuragi's father is still alive?", asked Goro.
"Takigawa Sawa gained information from the wife of a ferry owner who owned a boat to smuggle people from Touto to Seito. From what she said, it's possible that Katsuragi Shinobu had left Touto in the event of his supposed "death". I'm certain that Katsuragi himself is already aware of it."
"Okay.", Goro ends the discussion before he seems to notice Gentoku's clothing; he looked like as if he's a travelling beggar. "You really need to get a new fashion statement, old man. You look like a junkie right now."
The following week, Katsuragi and Goro begin their development of their dimensional gateway machine that will allow Katsuragi himself along with Goro's team to go back and forth between the two Human Worlds – the prime universe and Build's universe. As what Goro and Takumi have talked about, the completion of the machine will take about two months, and the SOLGU operatives are patient enough to await for it to be finished.
However, the two geniuses thought about building the machine to a different location as the SOLGU headquarters, despite being a base hidden under a office building. The machine has no room for it. Goro's idea is to use the abandoned airstrip in the eastern terminus of Touto called the Yokosuka Meadows. A month after the destruction of the Skywall and Pandora's Box, Goro bought the abandoned airstrip and since then he currently owns the airfield.
The development for the dimensional gateway machine is underway, which makes the airfield in the Yokosuka Meadows a more subtle location and a new base of operations for the SOLGU operatives. In addition, CEO Nakajima provided some assistance for Goro and Katsuragi, also providing the airstrip defenses equipped with stealth camouflage in order to keep intruders from entering the airfield.
Later that day...
While Banjou is out hiking into the woods again, this time Sawa and Misora go along with him. As Katsuragi went the abandoned airfield in eastern Touto to work on the new dimensional gateway that will allow anybody to go back-and-forth between the two parallel worlds. Along the way, they stumble into what appears to be a rabbit-like plush doll.
"Hey, this isn't a doll at all!", Misora looked at the rabbit-like object as if it looked just like a robot.
However, this rabbit-like robot opened its eyes. Meaning, it appears to be sentient at all.
"Bom-bom. Where am I, bom-bom?", said the robotic hare.
"Gyaaahhhhghhh!", Banjou screamed and jumped onto Sawa's arms. "It- It- It talked?!"
"Get a grip, will you?", Sawa drops him on the ground.
"Bom-bom, is this really the Human World?", this robotic creature is revealed to be none other than BOMPER, the Go-Ongers' robotic ally.
"Well...I know a somebody who can explain where you are now.", Sawa said and asks BOMPER to come with them.
Afterwards, BOMPER joined with the the three nascita occupants as they bring the robot to the cafe as only Katsuragi can explain what is this world.
That afternoon, Katsuragi arrived at the cafe from the airfield. He is surprised that the robotic creature Banjou and company encountered at the forest is revealed to be an ally to the Go-Ongers. Through Katsuragi's explanation, BOMPER did not realize that he's in the wrong Human World. Since the Human World is divided into two separate parallel worlds - the main Human World where the Go-Ongers and Build's Kamen Rider predecessors reside and the Human World where the Skywall existed, in short the world of Kamen Rider Build.
"You mean this Human World is different than the other Human World where Sosuke and the others live?", asked BOMPER.
"Wait, who is this Sosuke you're talking about?", asked Banjou.
BOMPER mentions the name of Esumi Sosuke to the nascita crew. Sosuke is known as Go-On Red, the red hero and leader of the Go-Ongers. Sosuke is a hot-blooded individual to a fault, but his personality is, if anything, almost at the same level as Banjou of all people. The robot willingly offered the data and profiles of the Go-Ongers to Katsuragi in order to know about them.
"By the way, if you ended up here... That means, where you after the people who are responsible for attacking your home dimension?", asked Katsuragi.
BOMPER recollects the events of the invasion of the Machine World, "Bom-bom, there were a group of humans who made it into the Machine World. They attacked the inhabitants, including the Engines. They were a group of scientists wearing in white and hold a briefcase with a letter "X" branded and kidnapped Speedor and the others. Also, they were also backed by a human called Katsuragi Shinobu."
To Takumi's shock, BOMPER also revealed that his father, Shinobu also had a part in the invasion of the Machine World led by Foundation X.
"My dad...is working with Foundation X? That's impossible...", Takumi could (barely) accept the half-truth at this moment.
If the last time Katsuragi saw his father during that encounter with Neo Faust was not a hallucination. It's more likely the confirmations that Katsuragi Shinobu is never dead to begin with. Made even worse when Shinobu is secretly backing Foundation X. But, the real question is, does Katsuragi Shinobu have any connection to both Foundation X and Neo Faust? Or, does Foundation X have been backing Neo Faust from the shadows? And the rest, are vice versa.
Moments later, the Izumi siblings and Taki arrived at the cafe from the Yokosuka Meadows Airfield as the team set up their new base of operations.
Upon seeing BOMPER, it seems Anzu has a thing for something as cute as this robotic doll of a rabbit. "How...", Anzu approaches BOMPER and grabs him as if he's like a robot doll. "...cuuuute!"
"Bom? Hey, wait? Aren't you...", BOMPER nearly mistakes Anzu for Miu due to their similar appearance. "You look just like her."
"Eh, Miu-san?", Anzu paused.
When BOMPER explains that he along with the Ancient Engines were trying to head for the other Human World to pursue the humans responsible for invading the Machine World, that's when the mechanical lifeform realized that he along with Machalcon and the Ancient Engines ended up in Build's world, which explains their confusion upon seeing Japan being torn by war. Since this is the scars of the civil war is still intact.
Both Goro and Katsuragi reassure that they are going to help Machalcon and the Ancient Engines save Speedor and the others. But, to do so, they must find the Go-Ongers and the Go-On Wings in the main Human World.
"We are going to save the other Engines from Foundation X.", said Katsuragi. "And we will also need the help of their human partners, the Go-Ongers."
"Thank you, bom-bom...", the robotic lifeform is happy to see the determination of the denizens of Build's world.
Later at the ZETA Tech main offices' underground parking lot.
Goro brought his teammates into the parking lot where he introduces them their means of transportation to use while going into the other Human World.
"Wait, street tuner cars?", Anzu had a look of disbelief on her face at the sight of three custom cars - a blue 2006 Subaru Impreza WRX STi, a white Mitsubishi Lancer Evolution IX MR Edition, and lastly, a green Toyota Supra SZ-R.
"We're going to surprise this Sosuke guy in a race.", Goro brings up from BOMPER that Esumi Sosuke is a race car driver. And, Sosuke's race in the other Human World will take place two months from now, and the dimensional gateway machine will be also completed at that time as well.
"No way! But, seriously, those are some sexy rides!", Aizawa also has a thing for tuner cars.
Goro owned these three cars during the time his days as a street racer. He began his career before working in ZETA Tech. The Supra is his first treasured car he drove. The reason he engaged in these dangerous activities was to overcome the trauma he experienced after the death of his parents in a car accident.
"One of us has to choose any of the three cars.", Goro asks Anzu and Aizawa to choose their car.
"The Evo's mine, you hear me!", Anzu decide to take the Evo IX since it also has blue and pink linear vinyls aside from its white base color.
"I'm in for the Supra.", Aizawa takes the Supra, the very car that Goro treasured.
"Don't scratch the Supra while you own it. In that case, I'm taking the WRX STi.", Goro now using the WRX STi reminds Aizawa to take good care of the car while he's driving it. "All of the cars' engines, brakes, transmission, tires, suspension, nitros are now enhanced and improved. So, you don't have to worry anything since they are now in their maxed shape."
It's also revealed that Goro has the cars' performances maxed to their full potential. That means, they won't have any problem escaping possible pursuers.
For the following two months have passed, the dimensional gateway is near its completion. However, it still needs major adjustments. And, the SOLGU operatives must head to the main Human World to find Sosuke. Katsuragi himself is also needed with Goro's team, however is unable to leave the machine. However, BOMPER comes to the two geniuses' aid and decided to finish the dimensional gateway in their place.
"Bom-bom, let me help you finish that machine. Bom-bom!", the robotic lifeform spoke.
"No way, you can't be serious.", Goro replied.
"The Ancient Engines will instead transport you guys to the other Human World. It's also possible for Engines to transport their partners into one world after another. You need to hurry and find Sosuke. Bom-bom!"
"Barii Barii! I'm coming too!", Machalcon added.
"If you say so.", Goro shrugged.
The SOLGU operatives boarded on their respective tuner cars - Goro and Taki took the WRX STi, Anzu and Natsu in the Evo IX, and Aizawa and Reiji inside the Supra.
Katsuragi took out the Ancient Engines' respective Casts and Souls."I'm going to pilot Kishamoth. I installed a transporter unit inside Kishamoth that will allow you guys to be teleported to Esumi Sosuke's location. Once I load their Souls in the Casts, you guys take K-Line's car."
Kishamoth, T-Line, and K-Lines' Engine Souls are now then loaded into their respective Engine Casts, which leads them to assume into their gargantuan forms. K-Line opened a hatch on the left side along with a ramp to allow the SOLGU team's tuner cars to enter inside. Katsuragi, now inside Kisahmoth's cockpit, prepares set the course to the other Human World.
(*cues: "Omae no XXX de Ten wo Tsuke! (Thrust Through the Heavens With Your Spirit)" OST from Tengen Toppa Gurren Lagann*)
"Next stop, the prime parallel world. Full speed ahead!", said the scientist whilst in Kishamoth's controls.
Machalcon leads the way, as the Ancient Engines depart from the Yokosuka Meadows Airfield through the ramp as the gargantuan train accelerated above ground and the rails below it are generating as well. Within moments, a wormhole opens in front of Machalcon, Kishamoth, T-Line, and K-Line enter in the hole. Afterwards, the wormhole is closed.
From the inside of T-Line's car, Katsuragi communicates with Goro and his team, "Are you guys ready? Put the pedal to the medal once I activate the transporter system. You guys will be sent to Esumi Sosuke's location."
"Ready when you are!", Goro replied.
"Teleportation sequence in 5, 4, 3, 2, 1!"
Moments later, the WRX STi, Evo IX, and Supra are surrounded by light and dimensional energy created by space-time continuum as they are now teleported into the main Human World.
And, we are brought back to everything where it all began...
Twin Ring Motegi Race Track, Motegi, Japan (Go-Ongers' world, Prime Universe)
Before the beginning of the race, the Sutou siblings - Hiroto and Miu, are watching Sosuke's qualifying race.
The announcer begins to introduce Sosuke as his car enters the starting line...
"Ladies and gentlemen...Here comes the legendary speed king himself, Esumi Sosuke in that GT-R GT 500!"
Just before the race starts, one of the spectators watching the race accidentally dropped his drink on the floor. The drop of the drink caused Miu to sense a disturbance from within the starting line.
"Ani! Something's not right...", said Miu as she asks her brother to look into the binoculars.
As Sosuke is about to wait for the signal before he is about to floor it. A wormhole just suddenly appeared from the race track! To the surprise of the Sutou siblings, Hiroto took his binoculars and turned right to the wormhole. What emerged from the wormhole are three street tuner-based cars, modified and customizable cars designed for street racing. The three cars composed a blue Subaru Impreza WRX STi (2006 model) with yellow vinyls, a white Mitsubishi Lancer Evolution IX MR Edition with pink and blue body vinyls, and a green Toyota Supra SZ-R with white and red body vinyls.
Miu took the binoculars from her older brother and looked the three cars that appeared on the race track, all the while they are also right behind Sosuke. Surprisingly both the WRX STi and the Lancer are compatible for World Rally Car racing and street racing; the Supra in the other hand, is both for street racing and the Super GT races.
"I don't see a WRX STi like that before.", Miu looked on the WRX STi. The three cars' windows tinting are incredibly darkened, Miu could not figure out the identities of the drivers due to the window tint's obscured and darkened color. However, she discovers a familiar sticker on the WRX STi's left mirror, a yellow sigil of Kamen Rider Build. "That symbol...It can't be."
From Sosuke's point of view, he had no idea who is behind the wheel of that WRX, Evo, and Supra. It seems he's itching to accept a challenge from three tuner cars.
The three tuner cars are anticipating for the start of the race. Goro then reminded Anzu and Aizawa to keep their windows closed. Even though the window tinting is dark enough to hide their identities behind the wheel, it's to make sure that Sosuke doesn't find out what's next.
"Boss, is that the guy driving the GT-R we're lookin for?", Aizawa's voice spoke through the comms installed on the three cars.
"Yup, he fits our description to a T, Aizawa-san.", Goro replied. "If I recalled correctly, his name is Esumi Sosuke-san. If the Sutou siblings had mentioned about him to us, he's the red-colored leader of the Go-Ongers."
"So, where are the rest of their team?", asked Anzu.
"Race now, ask questions later.", Goro said dismissively as he informs Anzu and Aizawa to get ready. "We're going to give the guy a challenge when it comes to racing."
"Everyone, get ready…The race is about to begin!", said Reiji from the Supra along with Aizawa.
After a count of three, the stop lights began to give the signal. Once the lights go green, Sosuke floors it, then, the WRX STi, Evo IX and Supra followed him. The cars began to run at high speed.
Back in the spectator's area, a petal of flower just suddenly fell above Miu's head. What it tells the two ESP siblings that something is not right…
"Ani, look!"
Along the way, a wormhole just suddenly opened, and emerging from it is a man driving a dirt bike. And said motorcycle happens to be the Machine Builder. And the one driving the bike is…
"Ani, isn't that…"
"Kiryu Sento…"
The man on the Machine Builder is of course, Kiryu Sento, better known as Kamen Rider Build. However, he is currently Katsuragi Takumi, the once and now reformed Devil's Scientist, whose memories was restored in a freak lab accident four months after the destruction of Pandora's Box and the Sky Wall. Sento's memories and personality had somehow been temporarily subsided as a result, and Katsuragi's current memories and personality took over.
Hiroto and Miu had no idea that Katsuragi and Sento was one and the same person, and so is Sosuke.
While in the Machine Builder, Katsuragi stays in front of Sosuke, while the other three cars are behind him.
"That's strange, if the three cars just somehow came from that wormhole, then some guy in the bike…Are these guys challenging the speed king?!"
The crowd is really going wild to see Sosuke trying to overtake Katsuragi and the SOLGU operatives driving the car.
"Sorry, I'm late for the party, Goro.", Katsuragi said on his comms at Goro. Surprisingly enough, Takumi refers Goro with his name, in contrast with Sento who usually refers Goro with "Izumi-san".
"Oh, what the heck. And I thought you were overlooking at the gateway. Anyways, stay on him Katsuragi."
Katsuragi held tightly on the throttle grip of the Machine Builder before making a sharp left at a curved path. The other racers hit the brakes to make a sharp turn.
"Do NOT use the NOS!", Goro warns Anzu and Aizawa to avoid using the NOS, just to make sure that they should race Sosuke just with speed the old fashioned way.
After driving at a fast rate of speed on the straight path, the racers once again hit the brakes to a left curve.
"I'll show the guy some drifting moves!", Goro then overtakes Sosuke and Katsuragi as he floors it to the sixth gear.
Once at the lead, Goro prepares to use a combination of speed, steering, and handbrake to drift onto the curves and shifting down back to the 4th and then 3rd gears. The slide he does is amazing, all while staying on the track.
"That is one wicked drift, ladies and gents! We don't see insane stuff like that every day!", the announcer commented.
"Boss, that drifting style is sick!", Aizawa commented while keeping a subtle speed.
In his car, Sosuke was surprised that someone can pull a stunt that can be only done in street racing inside the Twin Ring Motegi. "That guy's pretty good. In that case…"
Sosuke followed the same thing Goro did, but the manager warned him not to do it since the track is not meant for drifting like what the WRX STi did. Afterwards, Goro hits the brake on the WRX STi as he allows Sosuke to take the lead.
"Whoa, that WRX is really going easy on the legend!", the announcer exclaimed, as Sosuke's car reaches for the finish line. "And now Esumi made it into the finish line!"
As Hiroto and Miu watched Sosuke made it into the finish line, the siblings were in relief at Sosuke making it to the finals. And whoever is driving those three street tuner cars, it seems they're showcasing him the awesomeness of riding modified import tuner cars.
Later, as Sosuke drove his GT-R into the pit to stop there. The speed king got off the car and took off his helmet.
"Sosuke-kun, did you see those three street tuner cars that challenged you on the track?", said the racing team manager. "And whoever is driving that Impreza likes to show off than you do."
"I did. And, yeah, most especially the one driving that WRX STi is good!", the race car driver beamed. "That WRX, Evo IX and that Supra... Whoever is really driving those are sure badass enough to go mach speed against me!", also Sosuke also brought up the mysterious guy driving a dirt bike in front of him. "And, as for that guy on the bike..."
Nevertheless, Sosuke was impressed by whoever is driving that Impreza WRX STi, Lancer Evolution IX, and Supra. But that WRX really stood out than anything else. Moments later, Sosuke heard the presence of a WRX STi engine reving nearby the pit. Outside the pit, the WRX, Supra, and Evo IX, both three cars' engines started revving so loudly as if they're trying to call Sosuke out of the pit.
"It's them! This is awesome! I can't wait to see the drivers behind the wheel!", Sosuke seems to be excited to see the people behind the wheel on the cars. The WRX and Evo IX's doors are opened similar to a scissor door, while the Supra's opened its own similar to a butterfly door configuration.
Emerging from the WRX STi is a handsome man wearing sunglasses (Goro), with him is a tall, large-chested woman (Taki) wearing a ninja outfit. On the Supra, emerges a tall young man (Aizawa) and another on the right side (Reiji). And lastly, on the Evo IX, is a young blonde female, who is also a kunoichi too (Natsu), and on the driver's seat is a woman who physically resembles Miu (Anzu).
"Wait? Why is Miu driving the Evo IX?", asked Sosuke and this is NOT the first time Anzu gets mistaken for someone else.
"I'm here.", the real Miu alongside her brother Hiroto entered the pit as the psychic siblings confront Goro and his party. "How did you of all people got here?"
"This.", Goro presents to Sosuke and the Sutou siblings what appears to be a Formula 1-esque toy car along with it a chip that can be slotted in either of two slots. According to Hiroto, that car is not a toy, but rather an Engine Cast, and that chip is the Soul of that Engine.
"Hey, isn't this Machalcon?!", shocked, Sosuke had no idea how did Machalcon ended up with the SOLGU operatives. "What's wrong little guy?", he inserted Machalcon's into what appears a duplicate version of the Go-Phone.
"Mom and dad are missing! They've been abducted by humans that entered the Engine World!", said Machalcon.
"That's impossible...", Hiroto said in disapproval. "Ever since the Gaiark were already defeated, the Japanese government had already put an isolation barrier that prevents anybody from the Human World from going into the Engine World."
Then, Katsuragi, but still to the confusion of the Sutou siblings mistook him for Sento, due to the fact that his memories returned four months ago, appeared. "The question is, is there really a backdoor behind the Engine World?", said Katsuragi. "I'm Katsuragi Takumi, I'm a genius scientist. I've heard everything about the Go-Ongers from Goro. If I can remember correctly, it comes from the word "Go on". Which is obviously self-explanatory."
"Enough with the trivial matters, we still need to-", Goro said until he is interrupted by the sound of someone screaming outside.
Within moments, everybody exited the pit, as they see Kaisers emerging from the wormholes. These Kaisers are much more different than the Engine and RemoCon Bros designed by Namba Heavy Industries, but they're abilities are pretty much the same. There are two types of Kaisers that appeared on the scene: the Alpha Kaiser is the one the uses the power of the Engine Gear, while the Beta Kaiser uses the RemoCon Gear.
Accompanying the attacking Kaisers, is a black and gold spider Smash monster. Katsuragi recognized these versions of Smash known as the Lost Smash.
"Those bastards must have tailed us all the way here!", Goro seethed.
"Neo Faust...", Katsuragi muttered. "What are they up to now?"
The Kaisers and that black spider Smash come from the revived organization Faust, now christened as Neo Faust. The question that came to the SOLGU operatives and the former Go-Ongers to mind is that, how did Neo Faust entered into the Go-Ongers' world, the prime universe of which Build's Kamen Rider predecessors also resided.
"Can you guys transform?", asked Anzu.
"No, we can't...", Miu frowned. "Here, the Sentai Activity Ban Law was already implemented by the government, and if we transform here, we might end up catching the attention of the Ministry of Defense."
"Damn...the government here in this world is crazy.", said Katsuragi. "If that's the case, they should make an exception for Kamen Riders! Now then, let's begin the experiment!"
Katsuragi already put on his Build Driver, as he took out the Rabbit and Tank bottles. After shaking the bottles and slotted into the Build Driver, he transforms into Kamen Rider Build.
*Are you Ready? Hagane no Moonsault! [Full Metal Moonsault!] RabbitTank! Yeah!*
"The rules of victory has been set!", Build proclaimed as he fights the Neo Faust Kaisers and the spider Lost Smash.
While Goro is very appalled what the Japanese government of the prime universe of implementing of banning Super Sentai, he says that the government here are insane, and he frankly voiced his disdain over it. Meanwhile, the SOLGU operatives prepare themselves to defend innocent people that are being attacked by Neo Faust.
"Taki, Natsu, and Aizawa-san. Keep us covered.", Goro instructed.
"We're right behind you.", Taki replied.
"Oh, yeah!", Natsu added.
"Lead the way, boss.", Aizawa finished as he takes out a M9 Beretta pistol.
In an interesting case where most members of the SOLGU have superpowers (Taki and Natsu are demon-slaying ninjas, while Goro, Anzu, and Reiji are Kamen Riders), Aizawa is an example who lives with his experience of using conventional firearms and since he has military experience; his combat skills are an asset to Goro and his team.
"Neechan, Reiji, let's do this.", said Goro with the Build Driver equipped.
"Right behind you, little bro.", Anzu snickered.
"Count me in, aniki.", Reiji finished.
*Crow! Stealth! Best Match!* / *Spider Jelly!* / *Stealth Jelly!*
"Henshin!"
*Are you Ready?!* / *Tsubureru, Nagareru, Afuruderu! [Squish, Stream, Overflow!]*
*Tengoku no Black Wings! [Heavenly Black Wings!] StealthCrow! Yeahhh!* / *Spider In, G7 Type-S! Buraa~!* / *Stealth In, New G7 Icarus! Buraa~!*
The G7 Rider trinity, Taki, and Natsu headed into battle as Aizawa provides them cover. Meanwhile, Sosuke, Hiroto, and Miu guided nearby people to safe places to avoid being attacked by the Kaisers.
A confused Sosuke looked at the Kamen Riders fighting Neo Faust. However, the Black Widow Lost Smash set its sights on Sosuke, Hiroto, and Miu. The three fend off the monster, however the numbers game of Alpha and Beta Kaisers only worsened, at the same time the Alpha and Betas combined into Omega Bikaisers, which only makes them stronger than the separated ones.
"Wait, they can combine into one?!", Sosuke exclaimed when he an Omega Bikaiser attacks him.
Even Hiroto's training without the need of transforming is obsolete against even the Omega Bikaiser and a Lost Smash.
Just things get even hairy for the three Go-Ongers, one of their comrades, Kousaka Renn make the save!
"Just where are these guys coming from?!", asked Renn.
While more Kaisers arrived, the Go-Ongers get another help. This time it's their other teammates - Jou Hant and Ishihara Gunpei.
"Gunpei, Hant?", said Sosuke.
"Who are those guys?", asked Gunpei, referring to Build, G7 Icarus XYZ, Type-S, and New G7 Icarus.
"They're Kamen Riders!", Hiroto answered. "They're from a different world."
"How did those Kamen Riders get here?", asked Hant.
"They're telling us that our partners...Speedor has been kidnapped. That goes with the other Engines except for the Ancient Engines and Machalcon.", Sosuke replied.
And due to the fact that the Japanese government of the prime Human World implemented a Sentai Activity Ban Law; the Go-Ongers are sitting ducks, while the Kamen Riders are trying to sort the mess between their fight against Neo Faust.
Author's Note:
The fact that this chapter's title shares the same one as the six-parter endgame chapters of Metroid: Kamen Rider Generations Vol. 3: Fates Intertwined, the title of this chapter is named after The Doors' song of the same name. Much like in the said six-parter chapters, the title of the chapter symbolizes the Kamen Riders appeared in this story, namely the G7 Riders.
Since this chapter culminates how the Kamen Riders found out about the Go-Ongers and going into the main parallel world to find them and inform them of their partners being abducted by Foundation X. Unlike the first chapter, this focuses on the Riders' point of view on how they will go into the prime universe (the Super Sentai and Build's predecessors reside). Though Katsuragi is still in the process of completing the dimensional gateway that allows the SOLGU operators or any of Build's allies to go between the prime universe and Build's world back and forth.
I also took Destonus' suggestion from his reviews that its also possible for the Riders to use the Ancient Engines to go into the main Kamen Riders/Super Sentai universe. But, this is temporary, once the Go-Ongers wind up in Build's world, Goro and Katsuragi are building a machine that allows the gang to go back and forth between the two dimensions or other Braneworlds.
There are 11 Braneworlds according to BOMPER in Kaizoku Sentai Gokaiger's Go-Onger tribute episode. Here, in this story, the Braneworlds are now 12 its because of two Human Worlds that exist: the prime Human World (where Build's predecessors and other Super Sentai teams minus the Kyurangers reside) and Build's Human World.
The Yokosuka Meadows being an abandoned airfield is a nod to the Verdant Meadows from GTA San Andreas. It also helps that said abandoned airfields were bought by the main protagonists for their own.