Ben 10 X bnha (Boku No Hero Academia) Or My Hero Academia for English. I do not own the respected products, so please support the official release and, they owners.

That be Said, This is going to be a slow burn so don't expect a lot coming out but they will none the less. Lets get started.

I should point out that this Ben 10 is of different age to my Mass effect 10 story. He Ben is a Teen, no girlfriend and has not unlock all of the aliens. Roughly around 50 or sixty.

Bellwood 2009-10

"Having fun there Vilgax" a spunky teen said in his Green puffed jacket, with the number 10 written on the side. He always seem to carry around a watch, with a hourglass figure. The watch is Green a white. White being the main colour and Green strips to showcased the symbol.

"Tennysons. Always a pain, A nuisance. My adversary" A buffed up squid that looks as menacing as his name. Also He stuck.

"Ben, please just finish this" A girl with, pink like beams coming out of her hands, holding down Vilgax.

"Yeah Well Gwen, It Hero Time." Ben hits his watch. A green light formed for a minute. Then Disappeared. Showcasing a new person, with…

"Four Arms" A 12ft Tetremand alien, that has the strength of Hercules and is covered in red. Gold for straps and the Hourglass symbol hitting his chest. Also like the name suggest he has four arms

"Hope, you ready for a fist sandwich, Heehe"

Everyone groans at Ben Humour

Four arms, starts hitting Vilgax, pummelling to ground. Vibrations are felt, and are getting harder. Vilgax counters Four arms strikes by Smashing the Pink Beams by way of Headbutt and grabbing Four arms lower two arms.

Four Arms fights back using his upper two arms. The fights last for a good hour. Gwen in the Back hold back civilians.

Vibrations crackling faster and stronger. The Floor Opening.

Gwen Sees this.

"Ben!"

But Four Arms doesn't or can't listen as the Vibrations make it hard for him to hear.

"Are you done… Hu.. hu. Yet, Villy"

"Not Quite. Tennyson" A growling Vilgax sated. Grabbing Four arms as he drags him down to the massive cracked wound filled with a water.

With one final punch from each other the opening crack on the floor becomes wide open. Water soaking in the trench and Vilgax and Four Arms getting eating down to the earths under skin.

Ben calls out

"You bastard. Gwe…n. Guble, Guble"

"BEN!"

Gwen tries to use her powers to grab Ben. She fails. He's already down deep. Her powers fail to reach.

Rain drops flicker down her eyes.

"Gwen!"

Gwen turns to see Grampa Max a old strong build type of person. Her aunt and Uncle, Carl and Sandra Tennyson. Ben parents.

"Grampa he's down there, Ben down there, with Vilgax." Gwen explains pointing to the crack, filled with an ocean full of water.

"NOOOOO!" Sandra exclaims. She falls under the weight of her emotion Carl holds her tightly, "It be okay Honey, we rescue him. He be fine" Carl looks at his father for a pleading response.

"I'm afraid there nothing you can do master Tennyson"

All the Tennysons turn to see

"Paradox" Gwen says with pleading hope.

Paradox Shakes his Head.

"I'm sorry Gwendolyn. He is alive but won't returned to this time period. Vilgax made sure of that"

"But they has to be a way for us to save him, or you can do right, right!?" This was Carl distraughtly speaking.

"In this Timeline of Benjamin, He is stuck until he is released. Vilgax, was losing and was not going to take that likely"

The Tennyson family are distraught. Carl and Sandra lost they only son tearing down with rain from the eyes. Gwen lost her faviroute cousin. Though she would never admitted it. Grampa look at the crack with patience. He looks at Paradox and asks.

"Do you know When?"

Paradox nods

"Good. That Good"

"Grampa/Dad?"

"Im sorry, but huu, it never easy is it losing someone. Ben will live and that important. It may not be now, but we have to hope" Max now tearing his eyes. Knowing he never see his Granson Ever Again.

The Family is in shambles, they lost they king, the one that held it together. While they where on vacation in Japan, Tokyo.

A Few months later in America/Bellwood after looking and trying to find Ben. Even when paradox said otherwise, they had to try.

"Gwen I heard what Happened. I'm sorry" A man with Dark raven hair and a gruff exterior to his face. Hugs Gwen when her family returned to Bellwood

"Thanks Kevin"

"We have to keep fighting for his sake. Knowing that dweeb, he tell us to do the same. We they be a funeral" Kevin said

Gwen shakes her head "No Since he is still alive, we going to wait even if I pass, I wait. I owe it to our family" Kevin nods at that

"I with all the way, Gwen"

Gwen nods, thanking Kevin, now looking back thinking. 'I Hold down the thought Dofus' Sheading her last tear

Many, Many years later. In the year 2400

Down below in Tokyo Japan. Blue ice is starting to crack. Above said crack live a world for of life and vigour a life known as Quirks.

In 2400, people have a trait or abilities called quirks. These Quirks give people, strength, speed and even the power to shoot lasers out of the Navel hole. There is a popular theory that these quirks are the next step in evolution to the human race. Children will either manifest one of their parent's Quirks or if the two are compatible, a new composite Quirk formed by the fusion of the two. Because of these Quirks, Heros are in popular Demand to the point there celebrities of the highest calibre. There even got a tier list. However The are people who don't have Quirks and are called Quirkless. They do not get treated that well.

Izuku Midoriya is one such person but one day after saving his "Friend" he meets a very bright Hero. After seeing Midoriya save his "Friend". He helps Midoriya become a hero with the power of One for All.

"Craakboom!"

A earthquake hit Japan. Sort of. In centre Tokyo. Ginza.

"What was that, All Might" All Might A skinny blond headed man, with very downed spikey hair.

"I don't know young Midoriya but I'm sure the other heroes have it handled. We need to finish your training for UA. " Midoriya a skinny, Green hair Kid who is shy from point A to Z.

Midoriya Nods Nervously " Yess.. All might Sir"

Underneath Tokyo. Ginza

A squid like claw breaks out of the lighten Ice.

"Finally I'm free from pesky puns and one liners. How did I ever lose to that brat"

"Please, you can't be free from my awesome jokes. Anyway can we finish this up I want to get a smoothy"

Vilgax Twitch. "Fine"

So once again they are fighting. Ben in four arm form. And Vilgax well being vilgax is destroying the cave structure to kill off Ben Tennyson.

"Come Brat, This is no game your trying to live here Or are you that desperately to Die Tennyson." Vilgax smirks

"Ahhhhh" Four arms punches every rock Vilgax throws at him.

"I will not let you destroy my world"

Four arms to the extreme pushes Vilgax upwards leading outside the cave.

Outside the fight. Heros Gather round the Ginza Area.

"Does Anyone know why that explosion took off, or where the explosion is for that matter" A Hero wearing wood. Called Kamui Woods

"Well right now we need to make sure the civilians are out of the way and safe" A detective called Naomasa Tsukauchi who wears a trench over coat and a hat.

"Right you are detective." A lady called Mt Lady

As they start furthering pushing people away, they skin floor starts to crack.

"What going on?" Kamui Woods Ask with a raised eyebrow.

The crack breaks and coming out of that crack is.

"Dammm you Tennyson."

Everyone is shock to see a squid like creature appearing out of the ground.

"What can I say Vilgax. I always love to Push your Buttons"

Everyone turns to see a Red Four arm creature on the other side of A Vilgax?.

Vilgax growls Hysterically. "Time to Die Brat"

"Normally his the part you surrender but hey, I'm not that desperate for a Smoothy yet"

Everyone in the audience " A smoothy!" They exclaimed

Both Vilgax and Fours are about to charge at each. Slamming one fist for another. Vibrations hitting everything and everyone. The fight continues tossing and turning. Punch after punch until. Causing mass destruction as they punish each other.

"Enough!"

Flames appear around them preventing them to further fight, "Hey where the fire come from!. Woah!" Four arms Exclaims looking up to see a giant lady manhandling him. "I need more smoothies." Clearing not believing what he seeing.

"Let go of me you, worthless Human"

The flame man who capture Vilgax snarled "I'm worthless, how dare. You, I tens times the man you are and your squid like quirk"

Four arms laughs "hahahahahah. Oh please let me take a picture of that. It go on my phone wallpaper"

Mt Lady Chuckles "I don't think your situation any better here. Um right what's your name?"

Four arms four eyes blink " Well right now I am four Arms"

Mt Lady gives a deadpanned stare "Bit on the nose don't you think. Also what do you mean right now ?"

Four arm shrugged " I was Ten When I named him and right…"

A loud beeping noise came from four arms chest that everyone reacts to. "BEEP BEEP BEEEEP"A red light flashes.

"Well right now I am Ben Tennyson. Nice to meet you Giant lady with horns" Mt Lady blinks

Everyone in the audience saw that "NANI!"

In the background Vilgax is getting taken away with very extreme cuffs "DAmmm you Tennyson. I will have my Vengeance and the Omni…" He gets Muffled Ben He smirks in return.

"Put him Down MT Lady" Detective Tsukauchi suggested.

She does so.

"Hello My Tennyson was it" Ben nods "my name Detective Tsukauchi, I would like you to come down to the police station and answer some questions for us"

Ben shrugs "That cool, as long as I get to go home afterwards that fine"

Detective Tsukauchi raised an eyebrow "I don't think you realise the ramifications here mister Tennyson, you used your quirk to fight another quirk user and in the process damage property.

Ben Blinks "EHHHHHHHHHH. The Hells a quirk. Also I'm a Hero so Shut up?"

Detective Tsukauchi blinks back "you turning into that four arm creature was your quirk. Also you are not a Hero you need a License for that"

Ben shakes his head "Why the hell would you need a license to be a hero and No That not a quirk, that just me using my watch to turn into four arms. Also what's a quirk " He showcases the watch

All three heroes who are no converging to talk about today events. Hears that more clearly than the last and looks at him with a deadpanned expression not Believing at him at all.

Detective Tsukauchi who quirk is a literary lie detector and can tell Tennyson here is not lying here.

"We need to get you to the station and I need to make a few calls."

5 minutes later, after the ride to the station. Ben been waiting for someone to come talk to him. First they took his DNA. Then they had him medical check. Which honestly they should of done that first.

After twenty more minutes the Detective Tsukauchi comes back in, with a women with ginger hair. A man that looks like he has not sleep in days and a Rat? no a mouse?, or a miniature Bear? also his smile very creepy. Then there was Fire Dude from earlier. Then a man that looks to be a buffed up Vampire.

"Well this is Quite ensemble of cast" Ben stated openly

"indeed Mister Tennyson." The Rat eh no, Oh I don't know. "My name Is Nezu. I am a Principle for The Hero academy UA. Over here we have, Vlad King one of our teachers"

Vlad King nods

"Our other teacher Shota Aizawa also better known as Erasorhead" Aizawa just stares blankly

" Over here we have Endeavor, the man who capture vilgax and stop your Fight" He Growls at that.

"Nice to meet you too sunshine" Endeavor further Snarls at the brat.

"You already know Detective Tsukauchi"

"And to the far Left is your Many Great Grand Daughter Susan Tennyson"

Ben just Blinks. Looks at Susan back at the cast back at Susan

"What… WHAAAAAAAAAAAAAT!"

Ben was now sweating. 'Oh God no. Gwen' He thought to himself. Then it came back to him 'Oh GOD' He ask hoping it was not true, "What year is it?"

Nezu answers in calm deminer "2400"

Ben slouch, Tears started to pile on him.

Detective Tsukauchi looks at Ben in interest "Your taking this Better than I thought you would?"

Ben shrug in a monotone sound "not my first time dealing with Time travel, or stasis since I was in ice for who knows how long"

Endeavor Snorts not believe this "You expect us to believe…." Detective Tsukauchi cuts him off "He is not lying" Endeavor growls. Hating this very much.

"Ben?" Ben looks at Susan with a broken expression "I know it a lot to take in, but Grama Gwen and Grampa Kevin made sure that when you return, we be there when you do. To tell you everything" She looks at the now broken Ben. "She missed you very much"

That set him off He started Wailing his eyes out. Everyone in the room had nothing else to say. This child just lost his whole family. Susan may count but it still fresh.

Endeavor was feeling a bit awkward. Wonder Why

Nezu chims in "Mr Tennyson, I won't lie and say I understand, but we understand the circumstances behind it. We want to Help you"

Ben nods his Head still red eyed from the crying. He looks at Susan "Paradox told Gwen and the Family didn't he"

Susan nods

Aizawa wakes up intrigue by this Name "Who Paradox?"

Ben looks at him and answers to everyone "If you or any of your family, ever wants your life history both past and future told. He your Guy. He is a walking talking immortal Time Traveler"

Endeavor had enough " That Bullshit. There no way" Again Detective Tsukauchi cuts him off "He is not lying. Again" Endeavor looked at the detective like he was hoping, that was a lie but he ask "How?" in a low growl tone.

"Accident caused by his assistant." Endeavor looks at the Detective, He nods back at him. Endeavor just sighs.

Nezu fascinated by that "I wonder if I can speak to him at some point. A man with that skill, is a worthwhile adventure"

Ben smirks "If you want but you have to wait. He only comes when he needed and that stretching it. He has to follow a very strict set of rules of Time"

Nezu Nods " I would Imaged so. Anyway as I mentioned we would like to help you. You are still 14 according to Susan here and even though you past many birthdays, you still have to enroll in school"

Ben groans. Susan chuckles "The family always said you hated it"

Ben nods smiling at the memories of his distant now past "Was too busy being a hero"

Vlad King who was silence to whole time "and that the crux of problem at the moment. back then you would not need a license to be a hero and considering you were the only one with Alien powers no less, it would not matter"

Aizawa nods chiming in "So in order to help you. You be enrolled into UA as a scholarship"

Ben groans "urg so I have to learn to do what I already do. Ahh man" Everyone nods

Ben looks at them "You guys don't seem all that shock about aliens or my powers"

Detective Tsukauchi was the one that answered "That because as soon as I put your name in the system, a alert popped up. Then Susan appeared through a purple portal"

Ben smiles looking at Susan "You have Anodite powers"

Susan nods Beaming with pride "Almost everyone from Dad side has it. Oh you might get a visit from vedonna soon. She missed you" Ben nods grimaces at that

Detective Tsukauchi coughs. Ben and Susan nod apologetically "Anyway as soon as she appeared. She explain everything to everyone here in under three minutes. I don't know how. Honestly took us half the time figuring out what to do, with you and vilgax"

Ben smirk knowing how Susan did it. Susan whistled

Nezu walk closer to Ben "So Tennyson what do you say?"

Ben Groans "fine I go to school"

Nezu chuckles "excellent. Now, I already filled in the paper work. You be staying at the staff camp site called staff city and we need to go over the transformation so we get a clear understanding of what we dealing with. We work out between the teachers who be you homeroom but if that everything. Also may I ask how many trasnformations you have?"

Ben rus his chim "About 50+"

Everyone nods. Some Blanching. Aizawa thinking "Yeah that too much of a hassle, Vlad can have him"

Ben become alert "Wait what about Susan or the family"

Susan made a sad face "I'm sorry Ben but a lot happened when you where gone and well. The Tennyson don't live on earth anymore as well as the plumbers." like that was the answer. she walks up to him and hugs him but also feeding him information of what happened over the years "I'm sorry but I have to go. Goodbye Uncle Ben. we might not see each other again" Then see was gone in a flash.

Everyone stares at Ben now. His eyes puffy red from the crying before. Now it to the extreme. Endeavor left knowing his job was done which was making sure Susan left.

Nezu was the first one to hug him for a very long time because right now Ben 10 is left with nothing but the clothes on his back.