Akira: "Last time on Let the experiment begin 2: Heroes reunited even with the relaxation Destroyer came in and went on his destruction spree but not before talking to me.

Saji: "HOW ARE YOU NOT SCARED?!"

Akira: "Calm down Saji jeez you're not calmed. Do you want some tea?"

Saji: "Eh sure." He drinks tea "Man this is great." Then he relaxed

Akira: "Alright."

Ryu: "Ok WILL YOU PLEASE GET WITH RAVEL?! YOU TWO WERE MEANT FOR EACH OTHER!!!"

Akira: "Calm down plus I have no idea who she is."

Ryu: "YOU'RE GONNA BE SET ON FIRE!!!" Then Hygami and Itsuki held him down

Itsuki: "Please just stop. Anyways we also gained the original members of Team Build. Now then what will happen next?"

Ryu: "LET GO OF ME YOU BE-" Then he got knocked out
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Starting off with Team build having to deal with the smash clones which then the next day it happens again. Then the next day. And it continues doing so for 3 days and Akira was annoyed

Akira: "OK THIS IS GETTING ANNOYING!"

Ryu: "Agree! I'm close to just breaking a vase."

Sento: "Well this is pretty much how the story goes. Multiple small enemies and then boom a new enemy appears to work with the antagonist crew."

Meanwhile

Killbus: "We'll have to destroy this planet." He and Destroyer were in a hidden base

Destroyer: "Killbus calm down remember first we need more allies in our operation."

Killbus: "Ok but who?"

Destroyer: "Well i'll be going out to talk to two people they are good in combat. I'll be out don't do anything stupid." Then he went out into a black trench coat

Later

Destroyer was at a cafe which was in the shade as two men were waiting

(A/N: "Pretend his robotic half is disguised")

(A/N: "This example")

Destroyer: "Alright you two i'll be needing you two."

???1: "What's in it for us?"

Destroyer: "Work as a team and you can create destruction."

???2: He laughs "Oh really and what makes you think that we'll work with you?"

Destroyer: "How about we destroy some Kamen Riders."

???2: "Ooh that sounds good."

???1: "Hmm ok i'll make a deal."

???2: "Me too."

Destroyer: The three shook hands "Alright welcome to Team Dark Build...Kaisei Mogamis."

Kaisei (Build version): "It's a pleasure to join."

Destroyer: "Yep."

Kaisei (Ex-aid version): "Ooh goody when can we start."

Destroyer: "Well the first two targets you get to kill are these two." Then he shows the picture of Hygami and Itsuki

Timeskip

Hygami was with Momo and Itsuki was with Xenovia as they all were just relaxing and as they were relaxing until Kaiseis walked towards them with their nebulasteam gun

Kaisei (Build version): "Ok we found our targets."

Kaisei (Ex-aid version): He laughs "Finally time to kill someone."

Hygami: "Alright who the hell are you?!"

Itsuki: "Man and I was just relaxing." Then the two pulled out their own nebulasteam guns as the two Kaisei pulls out their gear bottles

Hygami: "Wait are those?!" Then the two inserts their bottles onto their own gun

Gear engine! Funky!

Gear remocon! Funky!

Kaiseis: "Mistify."

Engine Running Gear!

Kaisei (Ex-aid version): "Time to end these miserable knockoffs."

Remote control gear!

Hygami: "What the?!"

Kaisei (Build version): "I am known as Kaiser."

Kaisei (Ex-aid version): He laughs manically "And i'm Reverse Kaiser. It's a pleasure to meet you all but the formality is done as we're here to kill you!" Then the two charge at Hygami and Itsuki to which they did the same thing and insert their gear bottles

Gear engine! Funky!

Gear remocon! Funky!

Hygami & Itsuki: "Mistify." Then they transform

Remote control gear!

Engine Running Gear!

Then the two started fighting but even their fighting style from their previous world aren't even close to the Kaisers as they easily were able to beat the living out of them causing the two's armor to disappear and as the Kaisers were about to pull the trigger on the two until that was when Xenovia pulls out Duradel and then send the two far from them as then the two disappears in a cloud of black smoke

Timeskip

As the two were in the nurse's office recovering from the damage they took Akira and Ryu came in

Akira: "Guys are you ok?!"

Hygami: "Ugh...kaisers...beat us up..."

Ryu: "What?"

Itsuki: "Two people called themselves Kaisei beat the living crap out of us. Thank god that Xenovia for saving us."

Akira: "Ok so now the two have probably joined with Destroyer and Killbus."

Ryu: "Wait so that means that... we have new enemies." Then Akira, Hygami, and Itsuki facepalmed "What?"

Akira: "Ryu we aren't dumb say anything dumb and i'm gonna have Springer and Tank to chase after you."

Ryu: "After what happened to Sento I'm gonna shut my mouth for now."

Akira: "Ok." Then Azazel enters in

Azazel: "New enemies? Same transformation as Gear bros? Interesting."

Akira: "Stop it Azazel your not my father."

Azazel: "True because my girlfriend isn't a lightweight." He laughs

Akira: "Coming from someone who doesn't have one."

Ryu: "Oh low blow Akira, low blow."

Akira: "Meh."

Saji: He enters in exhausted "New enemies? Really?"

Akira: "Yes Saji. Wait how are you exhausted already?"

Saji: "How are you two not?!"

Akira: "I slept through class. The teacher didn't mind due to my grades."

Ryu: "I got my reasons." If anyone ask he kinda sorta threaten the teacher a bit

Hygami & Itsuki: "What else do you think?"

Saji: "Why me?" He whines about it

Akira: "Whine about it and i'm gonna throw you outside."

Saji: "Fine." He lays on the ground

Akira: "Also we should expect one- never mind."

Saji: "Huh?"

Akira: "Nothing. Just nothing."

Ryu: "Also dude get with Ravel."

Akira: "Again I have no idea who she is plus she probably doesn't know me."

Itsuki: "I swear on all deities if she ends up with that pervert then I'm close to just kill you."

Akira: "Wow you're dead serious."

Everybody else: "Yes!"

To be continued

Next time on Let the experiment begin 2: Heroes reunited

Destroyer: "They are getting in our way."

Akira: "No matter what i'll still find a way to evolve further."

???: "Every Riders are a pain."

???: "Henshin."

Akira: "I don't know why but I made these..."