Ben 10 belongs to Man of Action Studios and Cartoon Network

Monster Hunter belongs to Capcom

RWBY belongs to Rooster Teeth and Monty Oum

I only own my OC and Ultimate forms

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Opening - Ben 10 Ultimate Alien Theme

https://youtu.be/cxUbzV__dUI

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The next thing Jack and Nemetrix knew, they were at the Vale Police Department in the City of Vale where they are being held at the interrogation room. They were being lectured and scolded simultaneously by the blonde Huntress.

Jack couldn't help but sighing as they now has to deal with this blonde Huntress who thinks she has authority over them. He looked at the blonde woman looking at her scroll as she watched a recorded compilation video of him and  Nemetrix as Ultimate Rathalos and Ultimate Crabdozer defeating all of the White Fang members, them devolving back to her base forms and Nemetrix turning into Hypnotick as she and Jack escape from her. The video paused as the blonde woman was furiously lecturing them of their actions.

"I hope that you two realize that your actions tonight would not be taken lightly, young man. The both of you recklessly took on a group of Faunus terrorists who were armed and have years of experience of guerrilla warfare despite their misguidance for their goal of equality," Glynda said seriously, as she looked at Jack and Nemetrix while analyzing the recorded video of them and their transformations on her scroll.

"Ma'am, with all due respect, we were trying to stop the misguided Faunus from bringing even more harm and cause mayhem." Jack explains.

"And you didn't have to tell so loud when all we did was save civilians." Nemetrix asks sarcastically. "Now look here young lady!" Glynda finally snapped "Do you realize what your actions could have done?!" Nemetrix rolls her eyes.

"Which one? The one where me and Jack saved people or fighting those soldiers?" Glynda glared at her. "I believe you know which one I'm talking about and I hope you know the consequences of your actions."

That did it. Nemetrix stood up and glares murderously at Glynda. "Okay that's it! I've had enough!" Nemetrix snaps. "We were only trying to do the right and instead your angry at us!" She starts twisting on the Nemetrix symbol on her chest.

"Not if Panuncian has something to say about it!" She raise her left arm to slap the symbol, but Jack grabs her hand in the last second. She looks at him in slight shock. "What?"

"No, Nemetrix. We'll only be getting into further trouble if you do." Jack said in a calm tone, though his eyes narrowed. "However, I do agree with what you are about to do." He finishes.

"If it were up to me, you'd be sent home... with a pat on the back..." She said calmly.

"And a slap on the wrist!" she added firmly, hitting the table top with her crop.

"But, there is someone here to see you. Wait here," Glynda said as she exited the room quietly.

Once she left the room, Jack leaned on the table and let out a heavy sigh while Nemetrix continues to glare at where the door is.

"She sure knows how to deal with people." Jack thought sarcastically. He was just doing his job of protecting people whether it was his universe or not. Miss Goodwitch just had to scold them like children, but hey she was doing her job to protect people from her world. Plus, she didn't have to be so aggressive to on them.

Jack's thoughts are cut off as heard the door of the interrogation room opened and through it came Glynda Goodwitch and someone new behind her.

The person Jack saw was a man in his middle age. He had tousled silver hair and thin brown eyes. He wore shaded glass spectacles and a dark green scarf with a small purple cross-shaped emblem on it. He wore an unzipped black suit over a black-buttoned vest, with a green undershirt beneath. He also wore black trouser shoes and long, dark-green pants. In his left hand was a mug of what Jack presumed to be hot cocoa, basing that theory of the steam rising and the smell of cocoa from the cup. In his right hand was a long cane with a patterned handle.

"So, you're the young man that can transform into different unknown creatures... am I right?" the man asked.

Jack sighed and began to drum his fingers on the table while answering the man's question, while Nemetrix narrows her eyes in suspicion.

"Yes sir," Jack responded.

"And I believe your name is Jack Andros?" the man asked again.

"Yes," Jack said, not knowingly on how this man knew his name despite not telling him given the situation.

Glynda then took out her tablet and then displayed the same compilation video of Jack as Akantor, Tigrex, Seregios, Rathalos and Ultimate Rathalos, each using their abilities to perform their feats in Vale. The video stopped as it zoomed in on the light blue hourglass symbol, which caught her and Ozpin's attention as it appears to be in every form the young man transformed into each respective creature.

"How in the name of Azmuth did they get those videos?!" Jack said in his mind in shock. He had no idea he Glynda manage to get those videos from the time he arrived her and save a village from the Grimm.

"So, would you mind explaining how were you able to do such capable feats? the man asked, referring to the video. Jack glanced at the man, then to Nemetrix. She still look at them in suspicion but sighs and look gave him a small smile. Jack sighs as well before finally giving his answer.

"Well, things might get a little weird. My story is very wild." Jack stated in a warning tone.

"Try me," the man said confidently.

Sighing, Jack began to explain himself. "Let's just say, I'm not from around here," he said. "I'm from another universe. Her as well." He jerks his thumb at Nemetrix, who now adopts a neutral expression on her face.

Jack and Nemetrix paused for a moment to gauge everyone's reactions. Ozpin stayed completely looking stoic but looked like he was eager to learn more as his eyes slightly widen. Glynda Goodwitch, however, looked like she just heard the biggest lie anyone has made up in the history of the universe, not that Jack blamed her.

"That's... unexpected," Ozpin stated simply.

"We'll it's like this." Jack aid, pulling his sleeve up to reveal his dark blue gauntlet-like device on his arm. "This is the Monster Ultimatrix, for MonTrix for short. It allows me turn turn into hundreds of creatures that either possess super strength, super speed, camouflage, elemental abilities, and many more." Jack explained, as he finished his story. He decided that he would be just open enough to gain this man's trust, but not tell him everything just yet.

Now even Ozpin's mouth was open in sheer shock.

"That is just completely ridiculous. Now I know you're probably making this up," Glynda said in outrage as she glared at the boy, thinking he was joking. Jack glared back at her for jumping straight to the conclusion that he was lying. Nemetrix growls as she now wants nothing more than to go Tyrannopede on her.

"Glynda, please, his story seems viable enough, given how otherworldly his abilities appeared to be," Ozpin said in Jack's defense.

"Yeah, like he said, you saw me transform with your own two eyes."  said, as he glared at the blonde Huntress to prove his point.

"I don't care what I saw, but the idea of such a device that small is ridiculous." Glynda argued.

Seeing that she still didn't buy his story, Jack activated the MonTrix (The reason he did this is because he locked up the Master Control in the last chapter and has to dial to transform) as the dial popped up revealing an emerald green hologram of several Monsters and Elder Dragons. He then cycled through his playlist trying to find the right alien to prove to Miss Goodwitch that he isn't joking. Ozpin and Goodwitch just watch as the young man in front of them turned the dial on his watch counter-clockwise as he stopped on a hologram of a bear-like creature. He then slaps down unto the MonTrix symbol as light blue light consumes him.

When the light died, Jack is now an 11 feet tall blue and beige color bear. His face and upper back are covered in pointy blue armor with white tips. He had huge long red claws on his front legs with brown, tough casing protecting his wrist and forearm.

"ARZUROS!" The Blue Bear Beast roars out like an actual bear. Glynda stood there shock as she is proven wrong. After his stunt, Arzuros stops roaring and slaps the MonTrix symbol to turn back to Jack.

"I believe you showed us enough evidence that you are telling the truth." Ozpin said, continuing the interrogation. "Care to explain why you are here in the World of Remnant?"

Jack stays silent for a while finally saying, "Technically, it's not my fault. You see, I was fighting my one and only arch-rival and his pet." Jack suddenly snarls as he said the word arch-rival like poison, surprising both teachers, while Nemetrix flinches. "When I bested them and retrieved the Nemetrix, portal appears next to me and sucks me up, and the next thing I knew, I ended up here." He said.

"Interesting." Ozpin mused, then turns to Nemetrix. "So tell me young lady, what is yours?"

Nemetrix winces, but Jack decides to bite the bullet for her. "Remember when I said I retrieved the Nemetrix?" Jack asks. "Because Nemetrix isn't just a device like the MonTrix." He then gestures to Nemetrix. "She is the Nemetrix."

Now Ozpin and Glynda are shell-shock as Jack continues. "When I bought an apartment, I decided to fiddle with the Nemetrix and we if I could control it like I did with the MonTrix, despite still not knowing a lot of technology from my hometown." At that, Jack gains a sad look that Ozpin and Glynda noticed. They figured that his enemy had something to do with that and decided not to force him.

"Anyways, I manage to succeed and decide to do something the other day, but I didn't know it work to well and know she became a human." Jack finishes.

"Not only that," Nemetrix spoke for the first time since the interrogation. "I can also turn back into the Nemetrix itself." To prove this, she grabs the Nemetrix symbol and twists it counter-clockwise twice before a red light consumes her. When it subsides, in her places is a purple circle device with white teeth and a red inside on the center as a background.

Jack then grabs it and turns it in a clockwise rotation once before another red light appears and Nemetrix returns. "Now you know my story." Nemetrix said with her arms crossed.

"I have to say, what a story you two have here. Now, I have a proposition for you two." Ozpin said, making Glynda's eyes widened in shock. "I would like you to attend Beacon Academy, We can provide you a place to stay, information about our world and do your work here in Remnant. You don't have to attend classes, but instead complete an initiation and follow campus rules. And in return, I will do everything in my power to send you both back to your homes." He said.

Jack and Nemetrix are surprised at what Ozpin told them. They then look at each other, as if making a silent agreement before looking back at Ozpin.

"Alright, we accept." Jack said.

"Excellent!" Ozpin smiles as Glynda hangs her head in defeat. "Now I need you to come with me Jack and Ne-"

"Actually," Nemetrix interrupts Ozpin, causing them to look at her as she rubs her arm. "I was if..... you can just call me Emma in this form instead. Because I feel like the name Nemetrix is just a tool."

Jack smiles as he puts a comforting hand on her shoulder, causing her to look at him. "It's fine. Plus, it does suits you." He said, making her smile as well. With that said and done, the two followed Ozpin and Glynda outside the police department where a Bullhead going to Beacon is waiting for them.