Musutafu, Japan.

- the streets of downtown-

Yu Takeyama, otherwise known as the famous pro hero "Mt. Lady" was walking through the streets of the busy shopping district, looking for any signs of crime that might pop up. It was a boring day today, and there were only a few petty criminals, but other than that, the day was uneventful.

Holding her arm behind her head, she yawned in boredom. The giantess sighed in exasperation. 'Geez, where are all the villains? How am I supposed to get more money and recognition if they don't do anything?'

She thought to herself, her face turning into a pout. She heard the cheers of her fans and looked down the road to see some civilians pointing at her and waving, their faces plastered with wide smiles.

Yu smiled at them. "Hey, thanks, guys! You're a nice audience!" She shouted to them. They cheered even louder at her acknowledgment, and her smile turned into a grin.

Suddenly, an explosion was heard nearby, and the ground shook.

'A villain? Finally, a chance to raise my popularity!' She thought to herself excitedly.

"Don't worry everyone, Mt. Lady is on the job!" She announced to the public, as she began running towards the scene.

The crowd cheered her name in support, and she smiled once more, her grin becoming bigger. 'I wonder if this will be my big break...'

-Scene of the crime-

Whirlwind was not pleased with the fact that what was meant to be a smooth operation had been derailed by Electro and Rhino, turning the whole event into a chaotic circus.

"You morons! Look at what you've done! You've ruined the whole plan!" He shouted, gesturing wildly at the destroyed lab and the terrified people surrounding the scene.

Electro rolled his eyes. "Geez, get over it Whirlwind. The important thing is, we got the device, right?" He asked, holding up a suitcase.

Whirlwind sighed. "Fine. Whatever. We have the device. Let's go before the heroes show up." He replied.

The three villains began to leave, when a giant fist slammed down in front of them, cracking the concrete.

They looked up and saw the pro-hero Mount Lady standing before them, a determined expression on her face.

"Sorry, but I'm afraid you won't be going anywhere. You've committed a crime, and now you're going to pay." The giantess declared, her voice loud and clear.

"So this is one of Japan's top 100 heroes, huh? Pathetic." Whirlwind stated, glaring up at her.

The pro hero glared back at him, unflinching. "So, do you three plan on coming quietly, or are we gonna have to do this the hard way?" She asked, raising her fists.

" Rhino give the lady our answer." Whirlwind ordered, and his accomplice nodded, rushing towards her.

"You asked for it." Mount Lady stated, as pulled back her leg and punted the villain away.

Rhino flew a few feet, before slamming into the wall of a nearby building, 'Oh crap I got to watch out how much damage I do, or I'll have to pay for repairs.' She thought to herself.

Turning her attention back to the villains, she saw Electro and Whirlwind flying towards her, ready to fight.

Thinking fast, she clapped her hands together, creating a shockwave that sent the villains flying back, "Dammit, she's strong! Marko! Help me out here!" Whirlwind called, struggling to get back up.

Sand suddenly rose from the ground, and began to take the form of a large fist, and was thrown at the giantess.

"Seriously?" the giantess scoffed, catching the fist as if it were a softball. Only for the sand

to shift and change, wrapping around her wrist.

"What the-"

"You shouldn't underestimate my powers." A new voice spoke up, as a face morphed out of the sand.

Mount Lady's eyes widened in surprise. "A Shapeshifter?" She gasped.

"Sandman's the name, and sand is my game. Get it?" The Shapeshifter joked, as more sand wrapped around her leg, trapping it.

"Now Electro! Attack!" He commanded.

"Roger!" Electro answered, his body crackling with electricity, as he shot a lightning bolt at the pro hero.

The giantess tried to move but was trapped by Sandman's Quirk, as the bolt hit her.

"AAAAAAHHHHHHH!!!!!" She screamed, as she was electrocuted, feeling the pain all over her body.

"Hahaha, you should see your face right now. It's hilarious!" Electro laughed, his electric body glowing even brighter, as he began to send more volts her way.

"Damn...you!" Mount Lady forced out, glaring at the villain, as she gritted her teeth, enduring the pain.

As Mt. Lady was being electrocuted, Whirlwind gathered his energy and sent a blast of wind at her.

The wind was powerful enough to push the giantess back, and she cried out in pain, as began to fall back. On a crash course

With a building. She closed her eyes awaiting the impact.

'Dammit, this isn't good. If I crash into a building, it's going to cost a fortune in repairs!'

Thwipp

Mount Lady opened her eyes in surprise, as something caught her fall. Looking around she realized she landed on a giant spider web.

"What? How-?" She began to ask, confused.

"Looks like I made it just in time." A voice spoke up, and she turned to see a figure in a red and blue costume.

"Spiderman?" The giantess questioned, recognizing the hero.

"Yep, that's me," Spiderman confirmed, as he shot a web line, and swung towards her.

He landed next to her. "You okay?" He asked.

"Y-yeah. Thanks for the save." She answered as the webbing disintegrated.

"No problem. Just doing my job." The spider-themed hero responded.

"Whoa, what the hell is that!?" Electro shouted in surprise, staring at the familiar sight of the superhero.

"It's Spiderman!" Sandman exclaimed, his mouth opening in surprise.

"Bug, what are you doing in Japan?" Whirlwind asked, his voice laced with annoyance.

"Well we caught word that my favorite villains were leaving me to see the sights in Japan, so we decided to pay you guys a visit," Spiderman answered, his tone playful.

"We? Who's 'we'?" Electro inquired, raising a non-existent eyebrow.

"He means us." Another voice answered, and the villains looked up and were shocked to see Captain America, Wasp, and Iron Man, standing on a nearby rooftop.

"Avengers." Whirlwind growled, his voice filled with hatred.

"You're all under arrest." Iron Man announced, aiming his repulsors at them.

"Not a chance. We're not going back to prison." Sandman retorted, his face contorting in anger.

"If you're looking for a fight, then bring it." Captain America ordered, readying his shield.

"With pleasure." Whirlwind sneered, and he shot a blast of wind at them.

"Watch out!" Cap warned as the three heroes dodged the attack.

Landing on the street Captain America was about to throw his shield when Rhino burst through a nearby building.

Raising his shield the soldier blocked the villain's horn and was pushed back a little.

Rhino growled. "Damn you! I'm going to tear you apart!" He threatened, his face twisted in rage.

"Sorry pal, but that's not going to happen," Cap stated, his tone firm.

In the air Wasp and Iron Man dodged and weaved through the winds and electricity attacks of their respective opponents.

"Hey tin can, you can't run from me forever!" Electro boasted as he threw a ball of electricity at the armored hero.

Iron Man swerved to avoid the attack. "Nice try, but I'm not that easy to hit." He retorted as he blasted the villain with his repulsor.

"AAAHHHHHHH!!!!!" Electro screamed in pain, as the beam hit him.

"That's what you get for messing with the Avengers." Iron Man said as he shot another repulsor beam.

"Dammit, you're starting to piss me off!" Electro cursed, as he was hit with the attack, again.

Wasp for her part was dodging Whirlwind's blasts with ease. "Is that all you got? Because it's not that impressive." She taunted, shooting a beam of energy at the villain.

"You're an annoying insect. But your buzzing will end here." Whirlwind declared as he launched a powerful blast of wind.

The force of the wind was enough to push the shrunken heroine back.

"AAAHHH!!" Wasp screamed in pain, as the force pushed her against the wall of a building.

"Wasp!" Iron Man cried, and he shot a repulsor blast at Whirlwind.

"Gah!" The villain gasped, as he was pushed back.

"Are you alright?" Iron Man asked, hovering in front of the downed hero.

"I'm fine. Thanks." She answered, shrinking back to normal size, as she winced. Looking up she saw Sandman morph

Into a giant sand monster and begin attacking Mt. Lady and Spiderman.

"Come on Flint. Why are you so upset? You always loved a good fight." Spiderman teased, dodging the creature's fist.

"You always were one to joke Bug. But jokes don't win fights." The shapeshifter retorted, as his monster attempted to grab the spider-themed hero. Only for his arm to be swatted away by The giantess.

"You're right, but teamwork does." Spiderman retorted as he shot a few ice cartridges at Sandman's monster form, encasing his legs.

"What the hell!?" Sandman yelled in confusion.

"Mt. Lady! Now!" The web-slinger commanded as the giantess stomped her foot on the frozen sand, causing it to break apart and fall.

"GAAAAAHHHHH!!!" The Shapeshifter exclaimed, as his form fell apart.

"Nice teamwork." Spiderman complimented, grinning under his mask.

"O-Oh...T-Thanks." Mount Lady replied, her cheeks turning red. 'I can't believe it I'm teaming up with the Avengers! This is really gonna boost My popularity!' She thought to herself.

Smashing into a wall Whirlwind groaned, before pulling himself out of the debris. Watching the scene the villain scowled, before tapping his Communicator. "Doctor we have a problem," the wind villain hissed."Some help would be nice," Whirlwind grunted, the wind around him picking up.

"I've already sent aid, be patient," the Doctor replied, his voice crackling over the coms.

"Good," the wind villain sighed, his eyes scanning the scene.

Ironman perked up his armor scanning the area."Someone's coming."

A beam of purple zipped past them, hitting the ground. The Avengers whipped around and saw a familiar face standing a few feet away.

"The living laser," Iron Man gasped.

"Yes," The purple villain smirked as he flexed his body and emitted a blinding flash, the light so intense that it left the surrounding individuals completely dazzled.

The Avengers cried out in surprise and covered their eyes, but the light was so intense that they were still blinded.

"What's happening!?" Wasp demanded, trying to regain her bearings.

Just as soon as the light appeared it disappeared. The trio blinked rapidly, clearing their vision, and noticed their foes were gone.

"Damn it, they got away." Captain America cursed. "Tony, Janet spread out. See if you can find any clues."

"Got it," the petite heroine chirped, taking to the air.

"Right. I'll see if I can pick up a heat signature," Iron Man added, and the duo spread out.

"What the heck was that?" Mount Lady asked, her voice cracking slightly.

"the purple guy? Or everything else?" Spiderman quipped, glancing at the giantess.

The blonde rolled her eyes."Very funny. Seriously, why did a bunch of villains show up, and where did they come from?"

"Those villains were part of a group of supervillains called the Sinister Six," the masked vigilante explained, crossing his arms.

"And they're based in New York City, so why were they in Japan?"

"That's what we're trying to figure out."

The blonde giantess looked thoughtful. "So, what do we do now?"

"Right now? We help the police. They need to take care of the civilians." Spiderman stated, gesturing to the crowd that had formed. "You did great work."

Mount Lady blinked, a faint blush tinting her cheeks. "Thank you," she murmured, smiling softly.

Spiderman gave her a thumbs up." No problem, I was just telling the truth. Not everyone can handle four supervillains at once. And I'm guessing this isn't something you deal with every day."

"Not," the blonde heroine laughed, rubbing her neck sheepishly. "I mostly fight small-time villains. I've only faced a major villain twice, and it was really tough."

"It's never easy. Believe me, I know." Spiderman chuckled, remembering some of his toughest fights.

"Woah it's Spider-Man! So cool!" a young boy exclaimed, as a crowd began to form around the two heroes.

"Wow! Your costume is so cool!" A little girl with pigtails squealed.

"Can you lift a bus?" A preteen boy asked.

"How strong are you?"

"Do you have super-speed?"

"What's your Quirk?"

"Is Mt. Lady your girlfriend?"

"Do you know All Might?"

"Woah folks, calm down." Spiderman requested, his hands held up defensively."This is still an active crime scene, so I'm going to need everyone to clear the area."

"Yes! Everyone needs to get out of here," Mount Lady ordered, her cheeks tinted pink.

"Aww..." the children whined, pouting.

"Sorry kids. I'll give an autograph next time, but right now, I'm on the clock." The web-slinger joked.

"Ok." The kids and adults replied, a little disappointed.

As the crowd reluctantly began to disperse, Spiderman turned his attention to see Captain America talking with Local Authorities. It probably be a while before things were sorted out, so the web-slinger turned to the giantess.

"I got to go meet up with the other Avengers, but it was nice working with you." He said.

"Wait." The pro heroine stopped him, causing him to turn towards her."Can I get a selfie? You know, for the fans." She asked, her cheeks red.

"Sure." Spiderman nodded. "No problem."

The duo posed together, and the blonde hero took a selfie, her cheeks tinted pink."T-Thank you." She murmured.

"No problem," Spiderman replied as he waved goodbye, before swinging off.


"Now last I checked Musutafu isn't in America, so what are the Avengers doing here?" The officer asked, crossing his arms."This isn't really your jurisdiction."

"That's true. However, these villains were originally based in the U.S., so we're technically involved." Iron Man explained.

The officer looked between the armored hero, the star-spangled hero, and the petite heroine, his face scrunching up in thought. After a few seconds of silence, he let out a sigh."I guess that makes sense, but it's not exactly protocol."

"There's no need for that officer." A large male voice spoke up, and the three heroes looked to see the Symbol of Peace walking over, a smile on his face.

"Ah, All Might, sir. Thank you for coming." The officer bowed, relieved to see the #1 hero."I was just asking these foreign heroes why they're here."

"It's quite alright officer. The Avengers here cleared things up with the higher-ups, so there won't be any problems." All Might reassured, patting the man's shoulder.

"Alright then." The officer sighed, nodding his head.

"Thank you." The blonde giant said, and the policeman walked off.

"Well, looks like everything's going to be fine," Wasp said, putting her hands on her hips.

Turning to the #1 hero Captain America smiled, offering his hand."All Might, it's good to see you again."

The giant blonde shook the soldier's hand."Same to you, Captain America. How have you been?"

"Not bad. We've been pretty busy lately, but that's not a bad thing." Cap replied, smiling.

"Good. That's good." The #1 hero grinned."My apologies for not being there when you arrived. My teaching gig is keeping me busy."

"No problem. We know how important teaching the future generation is." Iron Man stated, waving his hand dismissively.

"Hey guys, sorry I'm late. Did I miss anything?" A voice asked, and the group looked to see the spider-themed hero landing on the ground.

"Spider-Man. My young friend. Good to see you." All Might greeted, patting his shoulder.

"You too. You've been doing okay since our last chat?" The web-slinger inquired.

"Yes. I'm doing quite well." The blonde giant nodded.

"Great. Glad to hear it." Spidey said, and turned to the others."So, what's the plan?"

"Well, we should get settled in first." Cap stated. "We have no idea how long we're going to be here."

"I agree. We can discuss the details once we're back at the hotel." Iron Man added, and the others nodded.

"Good cause the press are here." The spider-themed hero said, and sure enough, news crews and reporters were arriving at the scene.

"Oh great." Wasp groaned.

"Looks like Mt.Lady is enjoying the attention," Spiderman stated, looking at the pro heroine who was smiling as the cameras flashed.

"Mt.Lady, are you an Avenger now?"

"What was the purpose of the Avengers involvement here?"

"Is it true that you're dating Spider-Man?"

The giantess's cheeks turned red."I-I'm not d-dating Spider-Man." She denied, her cheeks burning.

"But you're an Avenger now?" Another reporter inquired, raising an eyebrow.

"Um, I'm not sure." The giantess replied, unsure of how to answer.

"That's enough." All Might said, his tone firm."The Avengers were just lending their assistance in today's events, that is all."

"All Might. Do you have any comments about today's incident?" Another reporter asked, holding their microphone up.

"Unfortunately I wasn't able to witness the event, but I heard that Mt. Lady did a remarkable job." The #1 hero praised, giving the giantess a thumbs up.

"T-Thank you." Mount Lady blushed, her cheeks tinting pink.

"We can't reveal the exact details of the incident, but you can rest assured that the perpetrators are going to be brought to justice." All Might announced, his eyes shining.

The press erupted in cheers, as they began bombarding the Symbol of Peace with more questions.

"I guess that means we're done here." Iron Man stated, and the Avengers made their exit

"Hey, wait up!" Mt. Lady called, running over to the heroes.

"Something wrong?" Iron Man asked, tilting his head.

"I was just wondering...if I could help with the investigation." The giantess inquired, her voice quiet."I mean I did help out with the whole incident and-"

"We'd be glad to have your help." Cap interrupted, his tone gentle."When we have more information, we'll contact your agency

"Really? Thank you so much!" The giantess smiled, her eyes sparkling.

"Don't mention it." The soldier replied, smiling back.

"Well, we better get going. See you around." Wasp said, her shrunken form hovering beside the soldier.

"Nice working with ya Mt.Lady." Spiderman grinned, waving goodbye.

"Same." The giantess replied, waving back.

And with that the Avengers departed, leaving the giantess standing by herself, a small smile on her face.'Wow. I can't believe I actually helped the Avengers. This is going to be huge for my career! 'She thought, a wide grin spreading across her face.


Musutafu, Japan.

-Unknown-

In a dark warehouse, the shadowy figure of Kurogiri stood before a glass tube that contained a large grotesque Nomu. It had a pair of long bat-like wings, sharp claws, and a gaping mouth filled with razor-sharp teeth.

"The subject my employer promised. He believes you will be able to put it to good use. Consider it a welcoming present," the black and yellow mist stated.

Metal tentacles stomped across the cement floor, stopping in front of the Nomu. Examining the creature, a pair of goggles looked over the monster. "An impressive specimen. And very generous,"

"My employer is a generous man," the bartender replied. "He only wishes to help you achieve your goals."

"Yes, yes," the goggled man mused, a small chuckle escaping him. "And I am quite grateful."

"Then, it would appear that our business here is concluded," the warp gate said, turning to leave.

"Oh, before you go," the scientist began, "tell your employer that his gift is greatly appreciated. And that he has my sincerest thanks."

"Of course. I will be sure to pass on your message," Kurogiri assured, before vanishing into the darkness.

Once the warping man was gone, Rhino let out a low whistle, his eyes trained on the Nomu.

"Man, that's one ugly freak," he commented, shaking his head.

"Kinda looks like something straight out of a horror movie," Electro remarked, his body crackling with electricity.

"So we stole the device and brought it back to base. Now what?" Whirlwind questioned, glancing at the doctor.

"Now, we begin phase two," the doctor answered, his tone eerily calm. using his metal tentacles, the scientist lifted the stolen item and placed it on top of the Nomu's container.

"Phase two?" Whirlwind echoed, a look of confusion spreading across his face.

"Yes. Phase two. In which, we bring our new ally up to speed," the goggled man elaborated, his eyes gleaming with malice.

"Isn't the creature already strong?" Rhino inquired, his expression perplexed.

"Indeed, it is. But that does not mean it is ready," the scientist stated, his voice cold and detached. "It is not yet at its full potential."

"Electro, Living laser. I need you to power the machine," the goggled man ordered, his tone brokering no argument.

"Sure thing boss," Electro replied, his body crackling with energy.

"On it," the purple villain answered, and the two villains moved to comply.

As the villains shot their respective energies into the machine, the warehouse bathed in purple and yellow light, the stolen technology beginning to hum.

"This creature is an abomination of science, a twisted amalgamation that only knows one thing. Destruction," the scientist stated, his eyes gleaming with madness. "But I will not let its existence go to waste. This Nomu is quite the specimen, and with my genius, I will make it so much more. I will make it...Superior."


A/N: This story features an amalgamation of both universes and will not adhere to a specific time frame from either world. So, don't be surprised if there are creative liberties taken that bring forth unique surprises.