Within a large and dark cavern, a portal appeared and violently threw out Class 1-A along with their homeroom teacher Eraserhead, Eri, and All-Might.
"Oww…" Izuku groaned, being the first to regain his bearings.
He placed his hand on his head as he looked around and saw his classmates, Aizawa, All-Might, and Eri.
"What is this place?" He thought as he went to help Eri to her feet.
Soon everyone was back on their feet and had congregated together. Confusion reigned as they tried to make sense of where they were and who was that mysterious person who sent them here.
"Where are we?" Shoto asked.
"Yeah, where did that stranger send us?" Kyoka seconded.
"I'm not sure where we are right now." Aizawa said with narrowed eyes. "But something in my gut is telling me I'm not liking it."
"Mr. Aizawa, what happened to the others?" Momo inquired.
She noticed the absence of Class 1-B, the Big Three, the other teachers, and Pro Heroes.
All-Might grimaced. "I, unfortunately, cannot answer Young Yaoyorozu. I can only hope that they are safe."
"For the moment we stick together and try to find out where we are," Aizawa instructed.
Izuku nodded, his mind was swimming with questions and he desperately wanted answers.
The group spread out trying to find a way out of the cave but after roaming around for a few hours without any success, Aizawa decided that the group should set up camp while he and All-Might looked for food. Suffice it to say the group was tired and restless.
"Man, this sucks." Denki groaned.
"We're stuck in the middle of nowhere without any food!" Mina complained.
"Don't remind me, Mina," Kyoka grumbled.
"Ça va pas non! I hope we leave this place." Yuya said.
"I miss my dirty magazines." Mineta moaned only for Tsuyu to slap him in the back of the head for that remark.
Izuku saw how downcasted his classmates were and decided to cheer them up.
"Don't worry guys, All-Might and Mr. Aizawa will help us get out of here."
"Just shut up Deku, we're stuck here and we can't do a damn thing about it," Katsuki growled. He was very frustrated with their current situation and wanted to find the person responsible for sending them here so he can beat the shit out of them.
Suddenly they all heard a roar. It reverberated throughout the cave and shook it up severely.
"What was that!" Hanta said as he went pale with fright.
"Sounds like a monster!" Mineta shrieked.
Their fears were unfortunately confirmed when Aizawa and All-Might came running back with a huge black dragon on their heels.
"Is that a freaking dragon?!" Mashirao exclaimed in shock.
"We're all gonna die!" Denki screamed.
"I couldn't imagine that being eaten by a dragon would be my fate," Fumikage said solemnly. "Alas, the world deems this a necessary end..."
"That's not helping!" Denki retorted.
"Stay in front of All-Might and myself and retreat in an orderly fashion!" Aizawa ordered as he and All-Might kept the dragon's attention on them.
Eri whimpered in fear as she saw the dragon. Izuku quickly took her hand as he and his classmates ran away.
All-Might landed many punches on the dragon while dodging counter attacks from the fire-breathing reptile. Aizawa assisted the former #1 Hero of Japan, distracting the dragon every time the beast cornered All Might. He used his capture tape to throw rocks at the dragon. It didn't hurt the beast but it did annoy it.
The dragon suddenly inhaled through its mouth and everyone's eyes widened as they realized what the dragon was about to do.
"TAKE COVER!" All-Might yelled.
The Dragon blasted a jet of flame from its maw. The flames enveloped the cavern and the heat generated from it spread everywhere.
Izuku held Eri to shield her as he closed his eyes but after a moment realized that he felt nothing.
Slowly opening his eyes, he saw a golden energy barrier around himself, his classmates, Aizawa, and All-Might. Curious, his eyes drifted around until they spotted a group of new arrivals.
They were a group of five individuals that appeared to be his age.
The first individual was a short black-eyed male teen with shoulder-length black hair that had green highlights. He wore a cargo jumpsuit and black boots.
The second individual was a tall and slim male teen with short blue hair and green eyes. He wore a white cloak over a black shirt, red trousers, and black shoes.
The third individual was a female teen with long and curly white hair, violet eyes, and large breasts. She wore a black tank top underneath a jean jacket, white shorts, and black boots.
The fourth individual was a petite female teen with black hair done in a bob cut and red eyes. She wore a burgundy sweater, a black miniskirt with leggings of the same color, and black boots.
The fifth and final individual was a muscular male teen with tanned skin, waist-length blonde hair done in a braid, and thick sideburns. He wore a black leather jacket with a navy blue muscle shirt underneath, jeans, and black boots.
The first boy had his right arm outstretched and his body was covered by a white aura, this marked him as the one who created the barrier.
"Who are they?" Izuku said to himself.
"I wasn't aware that someone else took the quest." The first teen said with a raised eyebrow as he looked at the UA students and Pro Heroes.
"I don't think that they're adventurers." The second teen replied with a thoughtful expression.
"They might be foreigners." The third teen mused.
"Guys let's discuss later we have a dragon to slay." The fourth teen said.
"Let's do this!" The fifth teen said while smashing his fist into his palm.
The dragon roared as it breathed fire again trying to break the barrier. Causing the first teen to grunt as he poured more energy into the barrier. It successfully held against the dragon's onslaught. He grinned before making the barrier dissipate.
The second teen then enlarged his right arm to gigantic proportions before charging forward and punching the dragon. The beast was sent flying back by the attack but quickly recovered and was about to breathe fire again before it was suddenly covered by a purple aura that slowed it down.
Izuku was surprised to see this and saw the first girl pointing at the dragon while glowing with the same aura. Her eyes were shining brightly.
The second girl placed her palm to the ground and earthen spikes stabbed the dragon. The aura around the animal disappeared as it roared in pain.
"It's wounded, finish it off!" The second girl said.
The fifth teen nodded before conjuring a ball of light between his hands, smirking as he cast it at the dragon as the First teen quickly transferred everyone to a pocket dimension he made before the fifth teen's attack hit.
A huge explosion erupted in the cave, causing it to collapse immediately. No trace of the dragon remained as it had been vaporized by the explosion.
Outside the cave was a wide and open green valley, the First teen transported everyone out of his pocket dimension into the valley. Once everyone had gathered their bearings, the first teen walked up to the much taller fifth teen and smacked his head.
"Ow! What was that for?" The fifth teen asked as he rubbed his head.
"You made the cave collapse on us, you idiot!" The first teen scowled.
"Hey, at least we killed the dragon!" The fifth teen replied.
"Alright, you two break it up." The second teen said as he went between them.
Aizawa approached the teens. "Who are you?"
"Gee, you couldn't thank us for saving you?" The first girl said.
Aizawa ignored her as the first teen sighed.
"Okay, we're adventurers of the Rising Sun Guild."
Aizawa raised an eyebrow at this but said nothing.
"My name is Mikio Fujimoto." The teen continued.
The second teen stepped forward. "My name is Takeshita Yasukazu."
"My name is Tomoko Sato." The first girl introduced herself.
"My name's Nami Takagaki." The second girl said.
"And I'm Shunsui Sakamoto." The fifth teen said.
"Now we have revealed ourselves, can you do the same?" Mikio said.
"I'm Shota Aizawa, also known as the Pro Hero Eraserhead," Aizawa replied before gesturing to his students. "And these are my students of Heroics Class 1-A."
Mikio was going to say something else when All Might walked up.
"Hello there, I am All Might!"
"All Might?" Shunsui asked.
"Yep, they are definitely Foreigners." Nami deadpanned.
