Hello everyone, MiniTennyson here with a brand new crossover fic between Ben 10 and the very underrated gem of a manga 666 Satan/O-Parts Hunter.

If you don't know what 666 Satan is, it is a manga from the early 2000s made by Seishi Kishimoto, the twin brother of Naruto's mangaka Masashi Kishimoto, that never got the chance to shine and many people just blamed Seishi of blatantly copying Naruto and Masashi's artstyle(which isn't true).

This fic will have OV Ben and Albedo end up in a world not of their own and Ben needs to befriend a rag tag group in order to find Albedo and a way back home.

A little background on this fic...I came up with this idea after managing to read the entirety of 666 Satan a few odd days ago and I instantly became a fan of its story, world and characters, and I wanted more people to knoe about this gem so...I decided why not write a Ben 10 crossover with it to make people know the manga even is a thing.

This fic originally had a very different setup with AF Ben ending up in the world of 666 Satan after the events of Alone Together by mere accident and ends up in this strange new world, needing to find a way home and hijinks ensue.

I decided to use OV Ben instead after realising AF Ben's alien rooster wouldn't have made for too interesting combat and it would limit my choices for fights and because if I used AF Ben in that point of the series, I couldn't use villains like Vilgax or Albedo if I wanted to.

I do not own anything other than the original events, OCs and the entirety of this fic. Ben 10 is owned by Man of Action and Cartoon Network and 666 Satan is owned by Shonen GanGan and Seishi Kishimo respectively.

Obvious spoilers for the entirety of the 666 Satan/O-Parts Hunter manga, if you don't want to be spoiled then read the manga before reading this fic(the manga is pretty short with 78 chapters, so if you have time to read that do so). If you don't care about the manga and want only to experience this fic...then do so.

Enjoy!


Young Ben Tennyson found the device known as the Omnitrix, that allows him to turn into over 50 aliens, when on a summer cross country roadtrip with his Grandpa Max and annoying cousin Gwen, using it to fight evils like Vilgax, Kevin 11, Hex, Dr. Animo and the Forever Knights.

After giving up being a hero more than 4 years after that unforgettable road trip, a teenage Ben was forced to put the device back on and fight evil once more as the force known as the Highbreed and the villainous Vilgax threatening the Earth, Ben needing to team up with his cousin Gwen and former enemy Kevin Levin.

After that happened, the teenage hero fought against the evil Aggregor, almost killed his best friend Kevin Levin and fought against a literal demon.

One year later, Gwen and Kevin left Ben all alone due to college, causing Grandpa Max to partner Ben with a new plumber revonnah recruit known as Rook Blonko. Together, this inseparable duo fought against many threats ranging from Khyber The Hunter to Malware to Vilgax to the Incursean Empire until finally fighting against their strongest enemy yet…Maltruant.

Luckily Maltruant got defeated and remained stuck in a loop where he'll have to relive the moments leading up to his defeat over and over again and Ben had to say goodbye to a friend in the form of Skurd the slime-biote.

Few months passed since then and Ben, Rook and their friends planned a vacation into space that was unfortunately delayed due to some plumber business.

Everyone thought this would be just a quick mission and that Ben will return, however…fate works in mysterious ways…and due to a twist of fate…

The young hero ends up in a fantastic alternate version of his world, needing to team up with new and unlikely allies….


The scene showed the old docks near Bellwood, before zooming into an open hangar to reveal a young man with white hair and red eyes wearing a red jacket with the number 01 being located on the jacket's side working at a mysterious machine.

The young man was no one than Albedo, the Galvan trapped in the body of a teenage Ben Tennyson, having somehow managed to revert to a teenage body from his formerly child one.

"Finally…if this goes according to plan and that rotten Tennyson doesn't ruin this for me…I'll finally be able to return to my Galvan form and then…I'll use the Ultimatrix core to become the strongest being in the universe!" Albedo muttered with a dark grin on his face as he

clicked some keyboards and buttons on the machine, causing some galvan symbols to flash on its screen.

As the evil clone worked on the machine that was supposed to return him back to his original form, however…suddenly two bolts of orange energy hit him in the hands, causing the galvan to let out a pained groan.

"Not so fast Albedo!" A proud male voice was heard, causing Albedo to look up and grimace in hatred. He knew very well who that voice belonged to.

There were two individuals in the door of the old hangar:

One being a young man with brown hair and emerald green eyes wearing a green jacket with the number 10 located on the side of his jacket and wielding a peculiar watch-like device with a green hourglass symbol lo,

The other individual being a feline humanoid with white fur and blue marks, brown eyes and pointy teeth wearing a blue Proto-armor and wielding a gun-like device.

These two individuals were no one but Ben Tennyson and Rook Blonko themselves, wielding their signature weapons: The Omnitrix and Proto-Tool.

"Tennyson! …and your sidekick I keep forgetting the name of! You won't ruin my plans this time…not anymore!!" The galvan shouted in mild annoyance

"Actually, my name is Rook Blon-" the revonnah said in an attempt to correct the evil clone, only for Ben to cut him off mid sentence.

"Let me handle this Rook." Ben said with a smirk, causing his revonnah partner to glare at him. "Albedo…how many times did we go through this already? Five times? Six? Ten? Well…however many times we fought…I always came on top and put you in your place. So, why don't we just cut to the part where I hand your butt over to the authorities?"

The comment caused Albedo to growl and the mild annoyance he had to turn into anger. However, he let out a deep breath and ignored the duo, trying to finish what he was working on with the machine as if nothing happened.

However, he didn't go that far with his plan to work on the machine as suddenly Rook tripped him before shooting a pair of handcuffs at Albedo's hands, tying him up. Seeing the fact that the evil clone was trying to use the Ultimatrix, Rook gave him an uppercut before attempting to keep the prisoner in check.

"Ben,I have successfully restrained Albedo, but I fear it won't be effective for long. You must deactivate the machine quickly." Rook said towards the Omnitrix wielder who nodded in return and started clicking buttons randomly on the machine.

Ben's clicking of random buttons was clearly not a good sign and Rook noticed that as well, sweat dropping a bit in nervousness.

"Umm…Ben?" Rook asked his partner.

"Yeah? What is it?" Ben asked his partner in slight confusion, seemingly not realizing the fact that the machine could have consequences for all buttons being pushed randomly.

"Why…why aren't you transforming into Jury Rigg or Grey Matter to do this?" Rook asked his partner in worry, not knowing why Ben didn't use his aliens for the job.

"Well, you, Grandpa Max and Gwen keep saying that I rely too much on my aliens to do stuff. So…I figured there's no biggie if I try to do something without my aliens every once in a while." Ben said with a cocky grin as he started clicking the buttons in an attempt to stop whatever it was that the machine was loading.

"Though I am grateful that you have decided to use your human form in battle more often,I believe this is one battle better suited for one of your more intelligent forms." Rook stated before suddenly yelling out in pain as Albedo kicked him from below.

"GAHHH!! Get off of me, you vermin!" Albedo shouted as he suddenly got up from under Rook and pushed the revonnah into the nearby wall.

Before Ben and Rook could even react to what was happening, Albedo smashed his Ultimatrix into one of the walls, instantly transforming him into the dinosaur alien known as Humungousaur, allowing the handcuffs to break in half.

"Well…you know what they say…being evolved is always better…" Humungousaur stated calmly as he clicked the Ultimatrix symbol two times before four spikes appeared out of the symbol and the dinosaur alien evolved into his ultimate form.

The dinosaur's brown skin turned green, a spiky shell formed on his back, a spiky ball formed on his tail and gun barrels came out of his hands.

"What will you do now Tennyson? In this evolved form…there's no way you can defeat me. If you don't use any of your stronger aliens you won't get anything done." Ultimate Humungousaur said cockily with a dark grin forming on his reptilian features.

"Heh, well thanks for the tip! Soon you will get some real atomic energy coming your way with the help of…" Ben said with a smirk as he scrolled through the omnitrix playlist before ending up on the alien he wanted and hitting the dial with his hand, transforming him into the speedy humanoid velociraptor alien known as XLR8.

"ATOM…Oh man…I mean XLR8!! Not what I was thinking but…it could work." The kineceleran said with annoyance before noticing the fact that Ultimate Humungousaur was aiming his way.

"Uh-oh!" XLR8 exclaimed as he started to run around the hangar, dodging the ultimate alien's numerous incoming projectiles before jumping backwards towards Ultimate Humungousaur's face.

The sudden attack surprised the ultimate vaxasaurian, allowing XLR8 to take him off guard and giving him a roundhouse kick right to the face.

"Why you moron…!! You'll pay for that hit!!" Ultimate Humungousaur roared in rage before charging at the kineceleran, and, before the adversary could even notice, the spike ball tail hit him full-on, sending the speedy alien flying into a wall.

XLR8 groaned in pain as he realized that his arm was cut and bleeding profusely(think of whatever color of blood you want, through I want you all to imagine XLR8 is bleeding green, yellow or purple blood here due to him being an alien) before finally managing to get back to his feet.

Noticing the fact that he is nearby the machine Albedo was working on, the kineceleran smirked and started to kick the machine at crazy speeds, mostly just to anger the ultimate vaxasaurian.

"WHAT ARE YOU DOING?!! Don't touch my machine, my work!! Why won't you just die like the bug you are!" Ultimate Humungousaur roared, finally losing all sense of rationality and went into a blind fury.

He started to shoot at the speedy alien, causing XLR8 to run in front of the machine and dodge, causing the projectiles shot by the ultimate vaxasaurian to hit the machine directly…causing it to break into smoke.

"Your foolishness will signal our demise, Tennyson!" Ultimate Humungousaur exclaimed in shock and horror at what the consequences for the kineceleran's actions could be.

"Error, error, error. System Overheat. Repeat, the system overheats. The cool down process…fails. Safe protocol…fails. All systems fail." A computerized voice stated from within the machine as a blinding red light started emanating a blinding red light.

"Umm…is that supposed to happen?" XLR8 asked the ultimate alien despite probably knowing the answer.

"NO!! It isn't! You ruined the process!!" Ultimate Humungousaur exclaimed as suddenly

"BEN!!!" Rook shouted upon realizing that his partner was in danger but before he could do anything…the blinding light died down.

Upon the light dying out completely, the revonnah's eyes widened in shock as the machine crumbled to the ground, a few papers flied around and the worst of all…XLR8 and Ultimate Humungousaur were nowhere to be found.

What happened to them? Did they die? Turned to ash? Teleported somewhere? Stored within the now destroyed machine?

Rook didn't have how to know what transpired and whether his partner was even alive or not for what matter. He couldn't do anything but fall to his knees…thinking how could he even bring these news to Ben's family and friends

"Ben…no…why did this have to happen…" Rook muttered beneath his breath as he got up and walked out of the hangar…

This event haunts him all the way back to Ben's residence where Gwen and Kevin were waiting for the two of them to return but…only the revonnah came back.

"Rook? W…why are you alone? Whe…where is Ben…?" Gwen asked in worry upon noticing the fact that only Rook returned with no Ben in sight.

"Yeah, where's Tennyson?" Kevin added with a confused look on his face.

"I…I'm sorry…I…I can't…" Rook said as he turned his head away in an attempt not to face the couple about what happened to their friend.

"Rook. T…tell me what happened. W…where is Ben?!" Gwen asked once more as her lips started to tremble, fearing for the worst.

"B…Ben…is gone. He's gone. During the fight between him and Albedo…the machine Albedo was working on malfunctioned. When I opened my eyes…they were gone."

"No…!" Gwen exclaimed in horror as she couldn't handle the truth and broke down into tears, crying as Kevin embraced her.

"W…what do you mean…Rook? Gone…like in gone or like in gone gone?" Kevin asked the revonnah, hoping that maybe Ben didn't…you know.

"I…I don't know. B…but in the worst case scenario…I'm afraid that Ben may be…" Rook started to say but before he finished the sentence, he was cut off by a crying Gwen.

"NO! Rook Blonko…don't you dare finish that sentence!! We don't know for sure that Ben is…BEN IS..! He isn't dead! I'm sure of it!" Gwen shouted as the tears just kept falling from her eyes. She didn't want to believe or even consider the fact that Ben may be gone forever.

"I…I'm sorry Gwen but…we…we still can't rule out that possibility." Rook stated eventually.

"Take me where Ben and Albedo vanished. M…maybe I can find any trace of where they are with my mana." Gwen stated as she cleaned her tears and her face turned determined.

After a few moments of silence Rook sighed and lead them to the Proto-TRUK, seeing how Gwen probably won't ever forgive him if he didn't at least allow her to try to find Ben.


And...cliffhanger! Hope you guys enjoyes this short first chapter for 10 10 10 Omnitrix! Is Ben really gone...?

What are your thoughts on the chapter or story so far? Please state them in the reviews or in PMs.

The possible love interests for Ben are:

Ruby Crescent

Mei

Yuria

Spika

Anna

Ponzu

If you don't have the time or will to read the 666 Satan/O-Parts Huntee the manga now, just search for these characters to see more about them and then vote for the girl. A poll will be also available on my profile bio on browsers and the poll for the love interest will end after one of the girls get 15-20 votes.

Special thanks to the youtuber Lobster Magnet's Reviews for making me familliar with Seishi Kishimoto and his works, fellow fanfiction author Shinobi360 for helping me with the idea, summary some line changes and the legendary FF author Ultimate10 as I borrow some ideas from his Ultimate Fairy and Ben 10 What If... works in this fic.

I hope you guys decide to stick around and read through the very first and only 666 Satan/O-Parts Hunter X Ben 10 crosaover(because I guess I'm the fanfiction author that writes first Ben 10 crossovers with things people haven't used yet like Chainsaw Man, Invincible and Edens Zero now)

As always, I hope you guys enjoyed this first chapter of 10 10 10 Omnitrix and that you'll follow, favorite or review this fic to show me your support.

The fic will have relatively slow updates and if it takes me too long to update that doesn't mean I abandoned or cancelled the fic unless I state so in an author note or announcement.

I'll try to have the other 3 chapters made pretty soon and I'll publish and opening for this fic using the song Revived by the band My First Story, so keep an eye out for those releases.

I have been MiniTennyson, this has been the very first chapter of 10 10 10 Omnitrix, I hope you enjoyed it and until next time...see ya later and grab a smoothie.

MiniTennyson, out.