We find Y/n stepping onto the Denliner and it seems kinda nice as he look around while Momotaros leaps over a chair and sat down.

Momotaros: Welcome to the DenLiner. Our own train that travels through space and time.....mostly time.

Y/n: (surprised) This is.....really cool.

Momotaros: Yep. Surprisingly this is pretty quiet........too quiet...........excuse me for a moment.

He then calmly get up, clear his throat for a moment and after he was done he immediately yells.

Momotaros: HEY! WHERE IS THE HECK IS EVERYONE! WE HAVE A JOB TO DO!!!!

Y/n cover his ears and then he hears something fallen and suddenly three other monsters came out and rush over to Momotaros.

Y/n: (thought) There's more?!

Momotaros: So first of all this is Y/n. We'll be the one that we may take over when he turns to his rider form. Y/n these are the taros. You have Urataros who is the smartass of the group.

Urataros: Hello.

Momotaros: This is Kintaros, a strong taro but soft as a bear.

Kintaros: Nice to meet you.

Momotaros: And this is Ryutaros who.....just throws Paris and drive me nuts.

Ryutaros: Hhhiiiii~! So nice to meet you! Hey! You like dancing? Sure I like dancing. Watch!

Then music came on and Ryutaros begins to dance while Y/n is stunned a bit while Momotaros gets annoyed and then yells which immediately stops the music.

Momotaros: WE HAVE NO TIME TO DANCING! Now come on and let's kill some monsters.

Ryutaros: Fine....Meanie.

They leave the Denliner while Y/n stood there stunned for a moment and then thinks to himself.

Y/n: (thought) How did I got myself into here?!

(Intro)

(Later)

We find the group walking through the empty hallways and seeing no sign of any life what so ever. We see them standing at the hallway as Momotaros feels disappointment for missing a chance to kill anything.

Momotaros: Damn it! The Antimatter must have left. Now I never swing my sword at them.

Y/n: Antimatter?

Urataros: For long terms "The Antimatter Legion," they are massive intergalactic army of hostile, malevolent monsters. Their goal is the destruction of all life and civilian in the universe.

Y/n: Wait. Do they have like swords as arms and wearing black armor or body?

Urataros: Yes.

Y/n: I've encountered them before and met you guys. They were scary.

Ryutaros: Not to mention party poopers. They wanted to kill all life? That's so not cool! Life is great! We have art, music, good food, music, cute animals, music.

Urataros: You said music three times.

Ryutaros:.........and finally.....music.

Y/n: So you think there is any survivors.

Kinaros: Surely there must be one.

Urataros: Perhaps there is. They might be taking shelter on the Master Control zone.

Y/n: If that's where everyone is then that means the Antimatter could already be there.

Urataros: If that's true then they may try to break in.

Momotaros: NOW I'M EXCITED! Now let's go and kick soke asses!

Then Momotaros rushes off with the rest following behind. Momotaros continues to race down the hallway and then turn a corner only to pump into a Antimatter.

The Antimatter looks down at Momotaros as he looks up at the Antimatter and soon the rest turn a corner and immediately is face with one along with the rest behind it.

Momotaros: Well guess we can kill them here.

Immediately Momotaros kicks it between the legs which didn't phase him which Momotaros says.

Momotaros: Oh crap.

Immediately he was thrown and crash onto the floor and in front of Y/n as he looks down at him.

Momotaros: Yeah probably do the "henshin" thing right now.

Y/n: R-Right.

He place the Den-O belt onto his waist and pushes the red button.

Y/n: Henshin!

Den-o belt: Sword form!

Den-O (M): Ore Sanjo!

The other three Taros pulled out their weapons as the Antimatters then rush at them.

Den-O (M): Hahaha! Time to die you Antimatter freaks!

Den-o charges foward and begins cutting them down with his sword. He silces and cuts them down while Urataros swings around his spear at them, Kintaros crackle his neck with his fist and chops them down with his axe.

Ryutaros laughs childlike and fire his large Magnum as he shoots them down and dodges their attacks. One try to stab him but he grab its blade and he dance with it.

Ryutaros: Come on! Let's just party!

He laughs more while he continues to dance with the Antimatter before spinning the Antimatter around and around and sent it spinning towards the rest and they crash and fall onto the ground.

Ryutaros: (chuckle) This is fun!

Kintaros: Hey Momotaros, you doing alright?

Den-O (M): Please! We have this under contr-

Suddenly the Antimatter managed to slahs at Den-O which cost him to stumble and trip onto the floor. Soon the other Antimatter gather around Den-O which momotaros said.

Den-O (M): Hey you would not dear to kill a main protagonist, right?

They stood there silent and then pulled out their blades.

Den-O (M): Hey it would be a best time to help out here!

Urataros: On it!

Urataros rushes over and then leaps into Den-O body while at the same time Momotaros pops out and land hard onto the ground.

Den-O belt: Rod form!

Suddenly the Antimatter around Den-O immediately get struck by a spear and destroyed as Den-O gets up in his rod form.

Den-O (Y/n): Wow! We're blue now!

Den-O (U): Yes and I have to say this feels good.

He turn to see more Antimatter rushes towards them.

Den-O (U): Mind if I rarely you in?

Momotaros: Mines better!

Den-O charge forward and begins cutting down the Antimatter with his rod. He quickly takes them down while Momotaros gets up and called out.

Momotaros: Hey wait for us!

Momotaros, Ryutaros and Kintaros follow behind as Den-O and the rest push back the Antimatters down the halls. Soon they turn a corner only to come across a large group of them.

Den-O (U): Seems like they think they have outnumbered us.

Den-O (Y/n): But they don't, right?

Den-O (U): Correct.

He then took out a rider passant swipe it over the belt.

Den-O belt: Full Charge!

He then throws the rod at one of Antimatters and then he leaps up into the air and then rider kicks the Antimatter and then rider kicks through them all until he is at the other side.

All the Antimatters soon blow up and the halls are clear as Den-o slowly stood up and turn to the rest to the taros.

Ryutaros: My turn!

Kintaros: The battle is over.

Ryutaros: Aawww.

Den-O dehenshin and Y/n thought Urataros will leap out 9f his body but to his surprise he didn't we see him having one blue hair sticking out which Y/n ask.

Y/n: Um Urataros what's going on?

Y/n (U): Not only we possess you while in rider form but we also possess your body.

Y/n: (shocked) Your joking.

Y/n: (U): Nope.

Momotaros: So what's the big idea?

Y/n (U): Well if there are humans still on board and if one of them sees us then they might immediately attack us. After all we look scary, especially Momotaros.

Momotaros: (angry) WHAT DID YOU SAY!

Ryutaros: Huh I never thought about that.

Kintaros: True. So what is the plan?

Y/n (U): Me and Y/n will head the Master Control room ans see if there are any survivors. If so then judging how lacking of Antimatter is there, we may have a chance to clear the remaining Antimatter and rebuild. Meanwhile you all head back to DenLiner and help out Naomi and repair the DenLiner.

Momotaros: Oooohhhh and if she finds out i crash the Denliner through a space station.

Y/n: (U): Yeah I suggest you might be ready if you get there.

Momotaros: Ha! I just go with you then! I don't care what other humans think! I will-

Suddenly Kintaros grabs Momotaros from behind and Momotaros tries to get him to let go but he was tough while Kintaros and Ryutaros said.

Kintaros: See you two back.

Ryutaros: Have fun~!

They head back with Momotaros begging to let go and once gone Y/n and Urataros head off as they walk down the hallway.

Y/n (U): So.....you don't know where you come from?

Y/n: How did you-?

Y/n (U): We share a mind while being possessed and I can tell that you have no pass memories.

Y/n: Y-Yeah. I don't know where I came from or who I was. All I due remember was these two mysterious girls as they hand me the rider pass.

Y/n (U): Huh....mysterious.

Y/n: Can I ask you something?

Y/n (U): Sure.

Y/n: The name Taros. Does that mean you four are related....kinda like brothers?

Y/n (U): Not really. We are a collective team of Imagin associated. The name is derived from the fact that the four of us are core members of a team have a suffix of "Taros" in their name.

Y/n:.............................

Y/n (U): Judging by the long silence I think your confused?

Y/n: I mean yeah.

Y/n (U): Well I suppose "brothers" would be something easier for you to understand.

Y/n: Yeah. Just that you guys live in the DenLiner for who knows how long.

Y/n (U): Probably too long.

Y/n: So why do you guys protect humanity?

Y/n (U): Because we want to help. Not all Imagins are evil. There are only some that are bad and some are good.

Y/n:......So where did they come from?

Y/n (U): That's a story for another time. Right now we're getting close to the elevator.

Soon they arrive at the door and the doors open onky for a Antimatter to appear in front of them and is ready to attack. Before they can pull out their belt suddenly an arrow shots through the Antimatter and then it fell and drop to the ground.

They look over to see a young girl with a boy as she smirked but then noticed Y/n as the two looked at each other and then she smiled and said.

March 7th: (smile) Hi! Names March 7th, how are you doing~?

To be continued............................................................