The day of the trip to Yokohama arrived faster than the students had anticipated.

Sunday at 4:45 am, Midoriya Izuku stepped out of his dorm. He was fifteen minutes early, but he found that pretty much everyone was already gathered at the school gate. Pulling along his luggage, he hurriedly joined his classmates.

'Deku-kun! ' Uraraka was the first to greet him. 'Good morning. '

'Ah, goodmor '

NING?!

' Midoriya squeaked out that last part when he saw the heavy bags beneath her eyes. 'W-what happened?! '

'Seems she didn 't sleep last night, kero, ' Tsuyu who was standing beside Uraraka explained.

'N-no, I think I slept for maybe three hours ' ' Uraraka weakly laughed as she scratched the back of her head. 'I guess I 'm too excited! '

Excited?

Midoriya could only muster a weak smile. He knew that was a lie. Rather than excitement, they were all feeling nervous, anxious and unease. He hadn 't gotten much sleep either 'not since learning about Yokohama.

Today was finally the day where they will enter the city of criminals 'how could they not worry?

'That 's no good, Uraraka-kun! ' The class president reprimanded as he came over to them. 'Not sleeping is bad for your body! Not to mention it will cloud your judgment and slow your reflexes when in battle! '

'Good morning Iida '

KUN?!

' Midoriya 's voice cracked once again when he saw the taller boy. His eyes met with those bloodshot and dry eyes that reminded him of Aizawa 's. They were staring unblinkingly into the distance with blackened bags underneath.

"I heard he's been standing at the gate since

9:00 pm

..." Sero whispered helpfully.

'Eh?! ' Midoriya gapped but gasp, but when he turned to Sero, he found that the other got dark circles under his eyes as well.

No, it wasn 't just them. Now that he observed his classmates closely, they were all talking quietly, lacking their usual rowdiness and energy. Nearly all of them got dark bags under their eyes except for Todoroki, Tsuyu, Shouji, and Tokoyami 'though honestly, Midoriya couldn't tell on the last one due to the feathers.

"Kacchan isn 't here yet? ' Midoriya asked, immediately noticing his childhood friend's lack of presence. Kirishima wasn 't here either.

'We 're here! ' A voice shouted as Midoriya turned to see the familiar and energetic redhead running over with an angry Bakugou 'as usual.

"Man, I can't believe I overslept!" Kirishima laughed as they stopped before the group. 'Good thing Bakugou came to get me or I 'll get scolded by Aizawa-sensei! '

'I DIDN 'T COME FOR YOU!! ' Bakugou roared. 'I WAS JUST PASSING BY ' '

'So! ' Kisirhima turned to the rest of the class, oblivious to his ragging companion beside him. 'Did something happened last night? You guys don 't look so good! '

'HEY! DON 'T FUCKING IGNORE ME!! '

Fortunately, principal Nedzu arrived at that moment with All Might and their homeroom teacher. If any of the teachers noticed the class' sleep-deprived states, they didn 't say a word about it.

'

Ahem

~ ' The principal cleared his throat and he stood before the students with a wave of his paw to gather their attentions. 'Good morning everyone! I hoped you all had a great rest! '

Midoriya couldn 't help but sweat-dropped like most of his classmates. Was the principal trying to crack a joke, or was he poking fun at their lack of sleep?

"First, I must thank you all for choosing to participate in this trip. It takes great courage to decide to attend this field trip, and I am happy to see that not a single student has backed out. I understand that a lot of you are feeling unease, but I am sure that will change once you've entered Yokohama."

The students stared at their principal quietly. Despite his words, none of them were reassured. How could they? They are entering a

criminal

city 'an

isolated

criminal

city.

'Inside Yokohama, there is one rule you must always remember to follow, ' Nedzu told them seriously, the smile he wore just seconds ago vanishing from that furry face. "That rule is that no Quirk shall be used inside the city, no matter the circumstances. Please do bear that in mind."

All at once, gasps could be heard as the students stared at their teachers in disbelieve.

No quirks?!

That 's pretty much asking them to walk into a lion cage naked without any weapons to defend themselves!

'Sensei! ' Yaoyorozu quickly raised her hand to object.

'Yes, ' Nedzu nodded to her, giving her permission to speak.

'What if it was for self-protection? Can we use Quirk then? '

' 'No, you may not, ' Nedzu answered.

The students couldn 't even gasp anymore. They all stared at the principal as if he had lost his mind. Perhaps he had, that would explain this ridiculous rule.

'We can 't use Quirk even if we 're attacked?! ' Kaminari shouted, not bothering to raise his hand anymore.

'That 's right! ' Ashido joined in.

'Absolutely no Quirk is to be used, ' Nedzu repeated. 'As long as you do not use your Quirks, there will be no danger to you. Please keep that in mind. '

The students wanted to say more, but Nedzu raised his paw, silencing all of their protests.

'The Port Mafia has sent their guides to greet you at the Tokyo harbour. Once there, they will take you into Yokohama. The ride will be two hours long. If you need to use the bathroom, now is the time because there won 't be any stops in-between! '

Midoriya could barely hear his words. His mind was stuck on the fact that none of them were allowed to use their Quirks.

But why?

Why aren 't they allowed to use their Quirks?

Midoriya wasn 't blind, and neither are his classmates. They all saw the principal 's expression when he had told them that they couldn 't use their Quirks. The principal was firmly set on that rule, even if they argue, he won 't change his mind.

'In Yokohama, you will be under the care of an agency called the Armed Detective Agency. During your stay, you will all be following them and observing how they work. '

'A detective firm?! ' Kirishima blurted out, obviously not expecting that. In fact, none of them had expected to hear that they will be staying at such a '

lawful

sounding place.

So maybe 'it won 't be as dangerous as they thought?

'Well, that will be all from me! ' Nedzu clapped his paws. 'I wish you all a safe and fun trip! '

With that, the principal left, leaving behind Aizawa and All Might to take care of the rest.

'I will now take attendance," Aizawa said, holding up the clipboard with the class attendance sheet. 'When I call your name, come up and hand your bags to the driver, ' he gestured to the bus driver stepping out of the tour bus. "After that, you can get on the bus and find a seat."

With that, Aizawa started going through the names.

One by one, the students went up, giving their luggage to the driver and grabbing a seat on the bus.

Midoriya ended up sitting right next to a super uptight Iida. Across from them on the same row were Uraraka and Tsuyu.

Bakugou was with Kirishima at the very back. Bakugou looked like he couldn 't care less about the whole thing while Kirishima was checking his backpack to see if he got everything.

Koda shivering in his seat while Todoroki next to him had already fallen back to sleep. Apparently, it was too early for him.

Mineta and Kaminari sat by each other, looked as if the world was ending while they complained about the ridiculous request from the principal.

Ashido and Hagakure sitting in front of them were doing the same.

Shouji and Tokoyami were quiet. Sero and Ojiro were the same except with some nervousness.

Jirou and Yaoyorozu were talking over what Nedza said.

Aoyama was shaking so badly he looked like he was going to faint. He was spluttering and crying while Satou who was unfortunate enough to sit beside him tried to calm him down.

When the bus finally moved, all their conversations stopped, leaving nothing but silence in the vehicle.

The ride felt like an eternity, especially with how two-third of the class were heavily lacking in sleep. The shaking of the bus was like sweet temptation trying to lull them in, but the tension in their brains forced them to stay awake and alert.

Aizawa and All Might sitting at the very front pretended not to notice the class 's unusual silence. After all, there was nothing they could say or do that can ease the children 's mind. So after the first half-hour of quietness, someone finally couldn't stand it anymore and decided to talk about something.

That someone is Kaminari.

'That detective place that principal Nedzu said 'what do you guys think about it? '

'Isn 't it weird? Why is there a detective firm in a criminal city? ' Sero pointed out.

'It couldn 't be a trap by those criminals, could it?! ' Mineta shook in horror.

'Of course it won 't! ' Iida fired back, offended that Mineta would even accuse of something so outrageous. 'This field trip is organized by principal Nedzu himself! I'm certain that this detective agency is a very righteous, crime-fighting organization within Yokohama!"

'Maybe it 's like

The Last Heroes

! ' Ashido said excitedly 'or at least, as excited as she could with those deep purple circles under her black eyes. "In the city of ruins, only one group of Heroes stand to fight against the invaders!"

'I love that movie! ' Hagakure piped in.

'I've watched that movie three times! ' Uraraka joined in.

Soon, the tension around them eased and they somehow began chatting about the most recent movies. Perhaps it was due to the tension finally easing. Exhaustion finally overwhelmed a lot of the students and they fell into peaceful slumbers in their seats.

The ones that were still awake kept quiet at the sight, allowing their classmates some well-deserved rest.

With Iida also nodding off beside him, Midoriya stared out the window as the bus entered the highway. The smile was lost on his face when he thought of their destination 'Yokohama. No matter how much he wrecked his brain, he couldn 't understand the purpose behind this entire trip.

What exactly was it that All Might wanted him to see?

What did principal Nedzu expect them to see?

What is in that city governed by bad guys?

Why aren 't they allowed to use Quirks?

With these thoughts plaguing his mind, Midoriya slowly dozed off...

Not far away, an explosion suddenly occurred.

Black fumes rose towards the sky and huge green vines were seen breaking through the ground and destroying the buildings around it. People 's cries could be heard as they escape from the vicinity, screaming for Heroes to come save the day.

The tour bus drove by like it didn 't even notice the chaos and danger. An eerie silence filled the interior of the bus. No one on the bus spoke up or reacted in any way. They sat in their seats, eyes tightly sealed and breathings even.

Soft greenish light particles gently drifted down, touching the tip of Midoriya 's nose before vanishing out of existence. Green aurora light created by countless small characters spread through the bus. The light flickered and the air that was clear just seconds ago was now covered by a thin layer of fog.

The two teachers sitting at the very front were fast asleep much like their students.

None of them were able to see how the driver's form completely changed during that flicker of light.

The forty years old man had turned into a youth with soft brownish-orange hair sticking out from beneath the black driver cap. The cap was pulled low over his eyes, covering the upper half of his face in shadow while the lower half of his face was concealed by a gas mask.

The bus drove into an underground tunnel and green light shrouded its form.

The bus never came back to the surface.

Just like that, twenty students and two teachers from U.A. High School vanished from Musutafu without a trace.

????????????????

When Aizawa woke to the darkness with weird grogginess in the back of his head, he instantly knew something was wrong.

In all his years as a Pro Hero working to capture villains, he had trained his body to act the instant something didn't feel right. Without his head fully clearing, he already up on his feet, hands fisting his Capturing Weapon as he forced his eyes to snap open and analyze the situation.

They were still on the bus, but Aizawa couldn 't see anything but darkness beyond the window. There was only the sound of engine, shaking of the bus and dim flickers of lights passing by that indicated that the vehicle was still moving. Although the windows were all tightly shut, he could still hear a faint echo from the outside.

So they were in an underground tunnel.

The children were all here, and so was All Might. They were all still asleep. The scent in the air was clean. He didn 't smell anything weird or out of place. The raven-haired teacher gritted his teeth, unable to believe how careless he had been. He had completely let off his guard just because the bus was organized by the school.

His eyes finally narrowed towards the

extra

passenger on the bus.

Sitting at the front row seat right next to the two teachers was a blond-haired man with glasses. Judging from his body proportion, Aizawa concluded that he must be around 190 centimeters. He wore a black long-sleeved dress shirt with a beige vest and matching pants.

In his hand was a green notebook with the kanji characters

'Ideal '

written on it. Before Aizawa was fully conscious, he had heard the sound of something scratching against paper. This man must have been writing something just before the underground Hero had jumped onto his feet.

'Who are you? ' Aizawa demanded, his eyes flicking towards the bus driver, then back to the unknown man.

He wasn 't stupid enough to forget about the middle-aged man who must be the blond 's companion. He had no idea what they did. He hadn 't smelled anything wrong or noticed anything different before passing out.

Could it be a type of Quirk? And more importantly, who was this man? Aizawa had memorized all the names and appearances of major Villains and none of them matched this man before him.

Or perhaps he wasn't a Villain. If so, then there was only one thing Aizawa could think of...

The Port Mafia.

'Calm down, we merely put them to sleep, ' the blond-haired man said while gazing down to his wristwatch. "They should be waking up any time now. '

As if on cue, soft hums and groans traveled from behind the teacher.

The students were waking up one after the other.

All Might was the first to wake up. He blinked a couple of times before his instincts kicked in. Despite no longer having his power, he was still able to quickly access the situation as he too stood up to face the stranger occupying the other seat.

'Hmm ' '

'Kero? '

'Are we there yet? '

'Ngh! That was a good nap! '

'Hey! Weird hairdo! GET UP! '

'Where are we? '

'Oh, we 're here? '

'Wha? Is it time to get off? '

In an instant, the entire bus was rowdy with life again.

However '

'Quiet! ' One command from the Erasure Hero silenced them all. It was then that they noticed the tension swirling around their teachers and a man whom they 've never seen before.

'Who 's that? ' Ashido whispered to Hagakure who responded with a shrugging motion.

'A friend '? ' Uraraka mumbled, but the moment she saw the cautious on the two teachers, she immediately knew that was wrong.

'Enemy! ' Bakugou, Todoroki, and Midoriya shouted at the exact same time as Aizawa stepped forward.

'Port Mafia? ' He questions, ready to activate his Quirk at any given time.

The moment he said those two words, the students immediately fell silent as their muscles tightened, looking as if they will jump into action the moment their teachers permit them.

The blond man closed the notebook in his hand and stood up, facing the teachers as well as giving the students a clear view of him.

'Do I look like someone from the Port Mafia? ' He rebuked, seeming offended to be mistaken as them. 'My name is Kunikida 'Doppo. I 've been tasked by our President to bring you to our agency. '

'You 're from the Armed Detective Agency? ' Toshinori asked, looking at the man before turning his gaze to the bus driver who hadn 't spoken a single word. These were the people that will be taking care of them in Yokohama?

'Correct, ' Kunikida replied, adjusting his glasses. 'I apologize for the way we brought you in, but we cannot allow you to know the entrance to Yokohama. '

'Yokohama?! ' Ashido shouted.

'Then, you mean right now we 're '! ' Yaoyorozu gasped and she, along with few other students looked out the window, but all they saw was pitch blackness.

That darkness didn 't last long.

The next moment, the bus emerged into the bright blinding light that forced all of them to shut their eyes.

'Welcome to Yokohama. ' Kunikida 's voice spoke from somewhere in the distance.

The beautiful landscape of the city matched with the bright blue sky that was revealed to them. 'The kids were dumbfounded as the bus drove down the curved slope and headed for the city below.

'We 're on a mountain?! ' Kaminari shouted when he realized where they were.

'Wait, how did we already get to Yokohama? ' Kirishima shouted, unable to wrap his head around how a nap had landed them within the mysterious city.

The first thing Midoriya noticed was how high up the sun was in the sky. Even before he fell asleep, the sun was just barely peeking out from the horizon. He wasn 't the only one who noticed. The two experienced Heroes also didn 't miss such obvious indication of how long they 've been out for.

Aizawa slowly let go of his Capture Weapon. It wasn 't like he trusted this man, but if this really was Yokohama, then they were already in the enemy territory. Fighting at a place like this will only bring danger to all of them, especially when he has zero knowledge of Abilities.

What also made him wary was whether or not these people were Ability users. Nedzu didn 't tell them how to spot Ability users, but just from the blond-haired man 's postures, Aizawa could tell this man knew how to fight. His partner (the bus driver) must be experienced in battle as well.

Seeing Aizawa no longer showing any signs of attacking, the man 'Kunikida, sat back down. He pulled out a pen, flipped his notebook open and started jolting things down onto the page.

Toshinori placed a hand onto Aizawa 's shoulder, hinting for him not to do anything. Aizawa huffed. He didn't like the feeling of being in someone else's palm, but there was nothing he could do about it. He sat back down, cautiously eyeing the man claiming to be from the detective agency, then to the driver.

The ride down the mountain took half an hour. When they entered the city, the students were all blown away. Even Aizawa was taken back by the scenery.

Toshinori had seen this view already, but even so, he couldn't help but stare.

'This 'this is 'it isn 't ' ' Iida stuttered over his words a couple of times, unable to come up with the correct one to describe what he was seeing.

'Definitely not what I imagined, right Bakugou? ' A huge smile stretched apart on Kirishima 's face as he turned to his companion.

'

AH?!

I TOTALLY EXPECTED THIS! ' Bakugou hollered defensively.

'Woah! ' Kaminari gapped at the scenery in awe. 'Everything is so retro! '

"Hmm~ They have refined taste!" Aoyama nodded approvingly, though he was still a bit pale from the initial fright of the blond stranger.

'I 've only seen these kinds of buildings in history books! ' Hagakura squealed to Ashido.

'These kinds of structures were very common hundreds of years ago around the era when Quirk began to appeared," Yaoyorozu explained to her classmates.

'Everyone, I think you should take a look at the people," Ojiro suddenly spoke out with a complicated look on his face. At that, the students stopped flaunting over the buildings and finally took noticed of the people on the street.

They were all blown away by the fact that they were all 'well,

similar

. As in, they all got only four limbs, similar skin colour and body sizes '

There was no one with any extra limps...

No one with pink skin '

No one with engines in their legs, earphone jacks for ears or tape in their arms '

No one with any animal characteristic...

No one who is invisible '

'Or balls for head.

And this wasn 't just one or two people. It was a whole bunch of them.

These were the people of Yokohama.

'Old Humans ' ' Midoriya whispered, eyes shining as he remembered what their teachers had told them about the civilians here.

These were all Quirkless human beings.

No, to be precise, they were humans that retained the same genes as their ancestors.

'So these are Old Humans. ' Shouji stared at all these people they passed by. Since the tour bus windows were tinted, none of the people outside were aware that they were being gawked by a bunch of high schoolers.

'I feel so out of place now, ' Sero said jokingly.

'But isn 't this a city ruled by criminals? ' Jiro pointed out the very important fact they were all conveniently forgetting.

When the class heard of a city ruled by criminals, the first thing that came to their mind was chaos and ruins. After all, that 's what Villains do, right?

"It looked just like any other places to me," Kirishima mumbled, looking around to see if he could spot any Vill 'no, criminals.

'Are you an idiot? ' Bakugou grumbled, eyes narrowing over the city.

Todoroki 's mismatched eyes were also sweeping over the people outside. Though he didn 't say anything, there was a serious look on his face with his brows lightly furrowed.

'Hey 'don 't you guys feel something different? ' Uraraka suddenly asked, gaining the class 's attention.

'What do you mean? ' Yaoyorozu questioned.

'Umm 'I don 't know. ' Uraraka thought hard, but she couldn't tell them what exactly was wrong. "Just something felt 'off? Or maybe something's missing?"

' 'I feel the same, ' Tsuyu agreed.

'Excusez-moi? ' Aoyama looked around.

'What are you guys talking about? ' Ashido turned to Hagakure who was seemingly shaking her head and hands, indicating how she didn 't know either.

"I don't feel anything," Kaminari mumbled before turning to Mineta. 'Hey, Mineta ' '

'Just a bit more 'just a bit more '! ' Mineta 's face was smeared against the window, hot breaths coming out in puffs with his eyeballs nearing budging out as he gawked at a girl walking down the street. She was wearing a very short skirt that fluttered every time a car passed by '

'Just a bit more '!! '

So caught up in trying to see up the girl 's skirt, the petite pervert didn 't realize how his classmates (mostly the girls) were looking at him as if he was a pile of trash left in some forgotten alley to rot away.

At the very front of the bus, Kunikida 's eyebrow twitched and jotted something onto his notebook.

Midoriya 's eyes swept through the city and the people. Yes, he had felt it too. The moment he looked outside, Midoriya already noticed something weird about everything, but he couldn 't put a finger on what exactly wasn 't right. He wasn 't given much time to dwell on that fact. Another half an hour later, they 've arrived at their destination.

The students and teachers stood at the corner of a crossway with their luggage. They gazed up at the red building in front of them. It was a nice building, but it was very simple and ordinary 'not exactly what any of them had in mind when they heard the word

agency

. After all, every Hero agency, no matter how small, got their unique styles to their buildings. This, on the other hand, was just a plain office building.

'This is where we, the Armed Detective Agency, operate! ' Kunikida declared, earning nothing but looks and silence from the group. The blond didn't seem to mind the lack of reaction and continued. 'The Armed Detective Agency focuses on solving crimes that are considered too violent or difficult for the police to handle. Often, these crimes are of a supernatural origin, therefore almost all of our members are Ability users. '

'Please wait! '

'What is it? ' Kunikida asked, looking over to Iida who was the one that interrupted.

'You said the

police

just now! ' Iida had a disbelieving look on his face, much like the rest of his classmates.

'Yeah, I did. '

'You have police here? '

'Of course, why wouldn 't we? ' Kunikida deadpanned.

'Isn 't Yokohama run by criminals? ' Midoriya pointed out.

'What does that have to do with having police? ' Kunikida didn 't say that in any mocking way. It seemed like he was genuinely

confused

by Midoriya 's questions. It was as if he didn 't think anything was wrong with having police in a city ruled by criminals.

The entire Class1-A just stared at their guide in awkward silence. None of them knew how to proceed with their questions. This man obviously didn't get their point and they certainly

don't

get his.

'Oops, that was close! ' Kunikida gazed down at his silver wristwatch. 'Now come along, we have no more seconds to waste! Get inside before you make a scene. '

Scene? What scene? The students looked around, but they couldn't understand what the man was talking about. Despite speaking the same language, they're starting to wonder if their Japanese was different than Yokohama's Japanese. Otherwise, why was it so hard to communicate?

"Let 's go," Aizawa spoke in his usual indifferent tone as he and All Might followed the man. The students looked among each other before they grabbed their luggage and trailed after their teachers.

They stepped into the building which they will be staying at for the remainder of their trip here at Yokohama.