A/N: So… this is gonna be a weird one. I've seen one Ben 10 x MHA fic where Kaminari gets the Omnitrix, but what about someone closer in disposition to Kevin? And considering where it landed in the Ben Prime timeline, well, it was kind of obvious who I was gonna go with. By the way, in this fic the Todorokis are closer together in age; there's only a cumulative 5 years between Touya and Shoto, not the 8 in the main timeline, so Touya's gonna be a third year when Shoto's in his second year of middle school. Oh and for reference, this story starts when Touya's 14 (on the day he unintentionally faked his own death, no less)
Edit: Fixed the nightmare formatting.
Touya Todoroki was nothing if not dedicated. So what if his dad didn't even bother coming up to Sekoto Peak anymore? So what if he damn near melted his skin off every time he used his Quirk? He was going to fix that problem, dammit, and nobody would stop him. And so that was what he was attempting to do that day. However, he couldn't shake the feeling that something was… off.
As he came to the usual spot, and focused his emotions, his rage at not being chosen, he glanced up at the sky to scream out to the heavens, as if anyone could hear him. And what should he see but a shooting star streaking across the bright blue sky. Huh, maybe my luck's turning around, he thought. As he focused on the pillars in front of him, however, he realized he could hear something. It sounded like a long, high-pitched whistle, and worst of all… it was coming closer. Glancing up again, he stared in shock as the shooting star suddenly pivoted around and began to streak toward him! Maybe I'll finally be out of my misery, he groaned, even as the air rushing past him grew louder and louder, as his own flames began to unconsciously leak out, and then…
BOOM!
Touya blinked, realizing he wasn't dead, though the area around him appeared to be burning. Most notably of all, however, was the fact that the meteor wasn't just a hunk of rock. It was… a pod. Metallic, shaped kind of like a nautilus shell, and then it slid open. "What the hell…" he muttered, even as he glanced at the odd device inside. It looked vaguely like a watch, except it had no dial, nor any screen displaying numbers. Almost instinctively, he leaned down to grab it, and… "Holy shit get off! Oi, stupid freaking space watch! I said, GET OFF!" He frantically waved around his left arm, which the watch was now firmly grasping hold of, until suddenly, it began emitting a light blue glow, and spoke.
"Warning. Omnitrix requires user identification. State name?"
"Touya Todoroki?" he said, confused.
"Primary user ID confirmed: Touya Todoroki. Registration code T20." Said the… Omnitrix?
"Alright, Omnitrix, if that's what you are," he said, "What is this?"
"The Omnitrix is a DNA repository for 1 million intelligent species. User is currently able to transform into 10 chosen species at this time," it explained.
"A million, huh? Aliens, probably." he commented.
"Omnitrix DNA samples have been collected throughout the Milky Way and neighboring galaxies," it said. "Warning: major DNA compatibility issues detected," it suddenly added, turning bright red.
"Woah, woah, compatibility?" Touya shouted. "Wait, this is about my Quirk, isn't it…"
"Current DNA sample has data aligning with high intensity pyrokinesis," it commented, returning to its blue color. "However, data also indicates high resistance to below freezing temperatures."
"Knew it," he groaned. "Hey, wait, you said transform, right?"
"The Omnitrix is capable of genetic manipulation at the cellular scale," it stated. "This also translates into repairs of genetic damage. User currently has compatibility issues. Permission to repair?"
"Do it," said Touya.
"Understood. Authorization code required," the Omnitrix said, and then its light flashed.
"Alright, so if I'm user ID T20… Code Two-Zero?" Touya said.
"Command accepted," said the Omnitrix. "Two-Zero saved as authorization code, alongside T-Twenty and T-Two. Commencing genetic repair." Suddenly the Omnitrix glowed orange, and Touya felt himself changing cell by cell. He seemed to be getting slightly cooler, oddly enough. "Repairs complete. Pyrokinesis will no longer negatively affect user cells."
"Sick," Touya said. "Wait till the old man sees this," he said, and he let out a massive wave of bright blue flames from the intense glee he felt at finally being able to realize his full potential. However, he soon realized he hadn't checked out his transformation abilities yet.
"Alright, Omnitrix, let's see what you can do…" said Touya as he found the button and the faceplate popped up. Cycling through the 10 options, he soon settled on a rather imposing one with four arms. "Here's a good start!" Pressing the faceplate down, the area was engulfed in a blue glow similar to his flames, and he felt himself changing. His skin turned red, his eyes yellow, and he gained an extra pair, he grew taller, bulkier, and of course, gained the four arms he'd seen, all while the hourglass symbol of the faceplate appeared on his chest. Once the light faded, he looked at himself. "Nice…" He then decided he'd find a nearby tree and see what would happen. Rearing back a punch, he slammed it, causing the trunk to snap like it was just a tiny twig, and the tree crashed to the ground. "Alright then, Omnitrix, I'm picking up what you're putting down…" He thought for a moment. "Probably gonna need a name for this thing. How about… Quad Fist? Sounds pretty good, I'd say."
Omnitrix DNA Sample Log, Entry #1
Species: Tetramand, User ID: Quad Fist
Possessing four arms and a bulky physique, this powerful species is routinely able to shear apart metal structures or tear into the ground with its hefty blows. As a male of the species, however, Touya is unable to fully utilize its strength, since female Tetramands are stronger almost by default.
After some more punches and hooks and throws and the like, Touya decided to see what would happen if he tried using his fire. It worked, sort of, which he was happy about, but he noticed the flames never turned blue like he could sometimes get them to. "Guess I have to be me to do that," he noted. "Unless one of the aliens I got also has fire…" While he mulled this over, however, the Omnitrix symbol began to flash red, once, twice, then over and over and with a final red flash of light, he was back to himself. "Guess there's a time limit… How long was that, anyway?"
"Omnitrix transformations are coded to last 10 minutes," it explained.
"Gotcha," he commented. "Aight, guess it's a good a time as any to head back…"
Back at the Todoroki abode, Touya walked in the door only for Endeavor to glare at him. "You were out late. Again," the number 2 hero said. "And what is that!?" he jabbed a finger at the Omnitrix. "Did you spend my money!?"
"What?" Touya said. "Nah, this is something else. By the way, dad, I fixed my constitution problem."
"Explain. Now." Endeavor said.
"This thing here's alien tech," Touya said. "Fell outta the sky and nearly slammed me in the head. Got itself stuck on me, and then fixed up my 'compatibility issue.' Then it said I could transform into other aliens too."
"You are lying," Endeavor denied.
"I'm really not," Touya said. "Look, come up to the peak tomorrow and I'll show you what I mean. Hell, we could do it right now."
"I will not suffer your games, you disappointment," Endeavor said sternly. "Get to your actual work."
"Alright, fine," said Touya. "But seriously, dad, come with me tomorrow."
"I will consider it if and only if your latest school project is perfect," said Endeavor.
"Got it," Touya confirmed.
Touya got his grade for that project back, and of course, it was perfect, because he'd known since forever that Endeavor wouldn't accept anything less; Endeavor simply shrugged upon seeing it and the two went up to Sekoto Peak. Touya showed off his powerful blue flames first, and Endeavor was somewhat pleased to admit that he was certainly lasting longer with them than before. Then, Touya showed him his transformation. Endeavor could only stare as where once was the lanky, white-haired form of his eldest son, there stood a giant of a, well not a man, but something, with four arms.
"I call him Quad Fist," Touya explained. "Four arms, tons of power, and I can even get fire with him, but it doesn't burn quite as hot," he showed off his merely orange flames then. "Oh, and all these new forms only last 10 minutes."
"I see," said Endeavor. "While this has not quite made me reconsider training you, especially given your newfound versatility, I will have one of my sidekicks assist you. You will meet them next week."
"Suppose that's the best I get?" Touya said. "Better than nothing. And just you wait dad, I'll prove I'm more worth your time yet."
"I will be watching with interest," said Endeavor.
Over the next few months, Touya found himself training with Onima, one of the few sidekicks at Endeavor's agency without a fire-related Quirk. This was mostly because Touya's fire was strong enough that it didn't really need more training, and as such a lot more time was spent honing Touya's other skills, most notably his close combat prowess. Being primarily a ranged fighter, the teen hadn't exactly spent much time learning how to throw and/or take a punch, which considering his first new alien was all about punching, was a little underwhelming. The training process was aided by the fact Onima's Quirk was Recoil, which let him take the force of an incoming blow and redirect it back at the user, essentially combining both offense and defense training into one move.
It was during this process that Onima eventually asked Touya if he could turn into anything else. Touya simply smirked at this, spun the faceplate a bit, and slammed his hand on it. From there, he grew bigger, taller than Quad Fist, and wider too, and his back began to sprout yellow armor plating, as his skin turned white and he grew black claws. "How's this?" he asked when he finished. "I'll even let you name him, since you were so eager to see a new one."
Onima laughed. "Show me what you got and I'll do it."
Touya grinned, but then realized he didn't know. For a short while he tried all sorts of things, like spinning, punching, kicking, the works, but the bulky form was too ungainly to have good balance. That is, until he fell over. Almost instinctively at this point, Touya curled up to try and roll with the sudden tumble, and roll he certainly did, the armor plates on his back shifting to cover his entire body. In fact, he rolled so fast he barreled straight through a nearby tree. "Huh. Looks like I figured it out."
Onima smirked. "Alright, I think I'll call this guy… Gyros."
Omnitrix DNA Sample Log, Entry #2
Species: Arburian Pelarota, User ID: Gyros
Arburian Pelarotae are renowned for their thick back armor that folds around their body. They use this as defense against other species, though Touya has discovered that the naturally spherical form they take is highly suitable for momentum-based attacks. This does require having momentum, of course, something which is not always possible. Touya can even light his body on fire while rolling, turning his form into a giant flaming cannonball for even more destruction.
Once Touya got back up, he tried coming at Onima with the intent to almost literally bowl him over, but the recoil from the sidekick's Quirk caused him to suddenly break out of his curled up form, and he stumbled backward, dazed. "Wow, that really threw me off… Ugh I think I wanna… BLEURGH."
Onima watched as Touya turned back into his human form and puked out most of his breakfast and lunch from that day, and said, "Well, now's a good a time as any to work on your balance…"
Touya groaned as he wiped his mouth. This was not going to be fun.
A/N: And here we go! 2 aliens down, 8 more to go, and I even managed to sneak in a whole new Quirk to boot! (Onima's Quirk hasn't been revealed yet in the manga) Now, not all of Touya's 10 aliens will show up before the Entrance Exam, but I'm thinking at least 1 or 2 more, with the rest coming later. Oh, and unlike Ben, Touya's got some extra fire to add to all his aliens! Like he noted himself, it's not as hot as in human form, but Ben already had a few aliens for that, so…