Note: I know that there probably aren't that many people on this website interested in reading Saiki Kusuo fanfiction, let alone a crossover made by a new author. Despite that, I hope those of you reading this would at least try the story and perhaps even leave a review.

Without further ado, please enjoy A Disastrous New World for Saiki Kusuo!

Underlines are used when characters talk in Japanese to characters that cannot understand it, but ignores their thoughts, since thoughts are universal... but more importantly, it doesn't look as nice.

Saiki Kusuo is an esper/psychic/superpowered individual unbeknownst to everyone other than his own parents and a few individuals not of his own selection. However, even he could not predict this situation: being trapped in a bathroom stall. His psychic powers allowed him to understand people, humans, and any living creature of sentience, not that he wanted to but because it's only natural when you can read their every thought.

What this psychic certainly didn't understand is how more than one individual can come up with reasons to try and spend time with him at the exact same time. Last time this happened, he got caught by Toritsuka whilst he was invisible and was forced to decline social invitations. That had singlehandedly been one of the most incredibly annoying experience in memory, not to mention a complete waste of time. This time, Toritsuka is also looking for him, so if Saiki were to walk into his line of sight, it would be an instant game over. Curse his stupid spirit medium powers. Being able to see ghosts should not include being able to see his invisible self.

Why was he looking for Saiki? He had finally caught on that Teruhashi, along with an unhealthy [for Saiki] number of girls, were 'friendly' with the esper and wanted tips. He would also probably resort to begging, Saiki didn't put it past that purple-haired piece of trash. So as usual, a dumb reason for an even dumber person. It could almost be described that the stealth game's difficulty changed into hard mode, but the bad ending from last time is easier to avoid this time around. He could tell where the game over was.

Wait, no. Never mind, it's in deadly difficulty. Toritsuka is being a dirty camper in front of his shoe locker, so invisibility wouldn't work anymore. This has to be one of the only times that the locker he's stalking isn't in the girls' changing room.

'Fine, I'll have to apport them later. A few books replacing them in my shoe locker shouldn't be too suspicious.' Saiki sighed in annoyance, leaning forward onto his knees in the process. Saiki, upon contemplation of other possible responses to the past situation, realized he was stupid for not trying that earlier.

The problem now was getting his bag back from the classroom. There's enough in the bag to make it difficult to replace with only a singular object that was relatively small at home. Otherwise, it would also be odd when his bag is replaced by something else in front of three of his classmates, all actively looking for him and casting constant glances towards his desk.

Why were they doing this? Well, it's not like Saiki didn't know but it would just be easier to show you what happened in the classroom a few minutes prior to the introductory paragraph:

"Where is Saiki?! He's already been gone for twenty minutes past the bell! I need him here to help me initiate Plan Flamecross to finally bring out members from the dark recesses of Dark Reunion!" Kaidou Shun questioned, all the while biting at his fingernails. At the pace he was going, Kaidou's nails would become just as tattered as his school uniform.

And yes, none of what he is saying makes sense. Kaidou was an annoying chuunibyou, calling himself a hero named "The Jet-Black Wing."

Saiki did not even have to make a comment for you to understand how stupid the entire thing was.

"Flamewhat?! Hey, shrimp, is that a new ramen place? We should go when my buddy gets here!" Nendou Riki ignorantly offered. Well, it would be ignorant, but he's Nendou, the most stupid person on the planet. So stupid, in fact, that Saiki could not even read his thoughts. After all, they were non-existent.

Paired with his off-putting, ugly, delinquent appearance that couldn't be described other than just saying to Google it, Nendou's stupidity helped cement him as unpopular, disgusting, and violent. Other than that final label, the descriptions were mostly true.

Which is why Saiki absolutely hated the fact that he kept trying to 'buddy' up with him. Saiki couldn't predict him, and didn't want to get to know Nendou enough to be able to without his telepathy. That only made it more unfortunate when Saiki knew that Nendou was probably the peer that he had spent the most time with.

And that chuunibyou and that idiot constantly forced themselves on Saiki under the pretense of friendship. Kaidou, at the very least, was semi-competent. That's probably why he would deny how well he got along with Nendou with Saiki as a middle man. No one would want to admit that.

"Ramen?! You're an idiot!" Kaidou yelled what everyone already knew. "Plan Flamecross is the ultimatum issue that Saiki and I plan to finally…"

Kaidou's voice drifted away into nothingness, his face becoming slightly red as he watched the classroom door slide open amidst his explanation. While in most cases, Kaidou would continue spouting his nonsense, there were a few select individuals that brought out actual embarrassment if he kept talking.

Those would be his parents, his sister (not his brother), the parents of his friends, and Teruhashi Kokomi.

Although, that last one would probably bring about embarrassment even in normal people.

By all means, Teruhashi Kokomi was an incredibly pretty girl. She could easily be scouted for idol companies, work in programs that her celebrity brother was involved in, and get paid for fashion magazine pictures on a daily basis, if she had actually wanted to. Her beauty was enough to attract the richest people in the country to her fan club, and in one instance, transfer schools specifically with the intent to marry her. However, Teruhashi wasn't a stereotypical pretty girl, and she knew that she was beautiful. But instead of abusing it, she would act as an incredibly nice girl would. That made everyone think she was just as pretty on the inside as on the outside. Even fish were attracted to her radiance.

Teruhashi attracted the attention of all those around her. Which is why Saiki despised the series of misfortunate events that caused her to fall in dumb love with him, a man who only wanted to be in the background. While Saiki didn't like to admit it, that love did keep her grounded in some semblance in reality and on a few occasions, away from taking part in acts that would be unbecoming of her. The rest of the time, she was one of the biggest threats, if not the greatest, to Saiki's pursuit of a normal life.

"O-ofu! Teruhashi-san!" Kaidou and Nendou both sputtered, in one of their rare moments of unison that were only brought out by her appearance. This would probably be a good time to mention that anyone who laid eyes upon her physically sparkling special effect aura would utter "Ofu," in reaction.

Teruhashi's eyes, without any indication due to practice, took notice of Saiki's bag still hanging on his seat. Addressing the stunned idiots while closing the door behind her, she asked in a faked shy voice, "Would you two happen to know where Saiki is? I was hoping to speak with his mother later today…"

"S-Saiki?" Kaidou repeated, blush enveloping his face. While Nendou shook his head beside him, Kaidou shared, "No, he still hasn't come back from the teacher's office yet."

While she didn't even show an inkling of it, Teruhashi was annoyed. That didn't stop her from taking a seat, and begin silently studying while waiting. Kaidou would have offered to search, but Nendou had started up the talks again.

Earlier, Saiki had watched Teruhashi try to find him earlier when she went towards the teacher's office. If he wasn't stuck in the school for the time being, Saiki would've taken that chance to leave.

If you're wondering about his school bag, Saiki got careless for a moment and didn't bring it when he was called to the teacher's office. The teachers got confused why Saiki seldom got more difficult versions of a question right and the easier versions wrong. Unfortunately, Saiki made that mistake on two of the first tests, and out of fear, decided not to immediately change his way of answering to avoid suspicions. However, it seems he took too long, leading to this chain of events.

At the very least, Saiki knew that Toritsuka couldn't be in multiple places at once. Saiki doubted his ghosts would be willing to spy on Saiki for him either. Kaidou, Nendou, and Teruhashi would all certainly be considerably better in his eyes if they weren't in the classroom specifically awaiting his return, but that likeability couldn't really be helped at this point.

There were other annoyances called his classmates, but they had other things befitting their stereotypes to attend to.

Hairo, the sports stereotype went on a training mission in the mountains. He was thinking of bringing Saiki, but Saiki made sure to implement thoughts into his head otherwise. Yumehara, the romance comedy stereotype, was taking diet cooking courses. Mera, the incredibly poor person stereotype that had long ago been taken too far, had her part-time jobs…wait, she doesn't bother Saiki anyways. Takahashi doesn't exist.

Saiko Metori, the pompous rich guy stereotype, was attending a charity reception, and it's not like he would invite Saiki anywhere. Aiura Mikoto, the inherently good person stereotype and another psychic like Toristuka that knew of Saiki's real powers, was dragged off by Rifuta Imu because Aiura was seen talking normally around Teruhashi…albeit a bit confrontational. Rifuta didn't particularly fit a stereotype, as she was basically a more manipulative underclassman version of Teruhashi. She was also heralded as the second prettiest girl in every situation.

Luckily for him, Nendou and Kaidou were talking with one another so the most difficult element to track would be accounted for. After taking a minute to turn invisible, Saiki unwilling to waste two hours to transform his entire appearance, he began walking towards the classroom.

"Say, shrimp, why do you always carry around an extra notebook anyway? You have dirty pictures in there or somethin'?" Nendou asked upon finding the notebook while he was shuffling through Kaidou's desk when he wasn't paying attention.

"H-how can you even say that near Teruhashi-san?" Kaidou's eyes averted for a second to Teruhashi, who was trying to ignore the conversation, and do some studying to help make her appear as a perfect girl. "Why don't you buzz off? Like those dumb flies attracted to your head! Did you even take a shower?!"

Unfortunately, since Nendou is stupid, he ignored Kaidou's attempt to change the subject away from his chuunibyou notebook. "Just let me see the notebook already!"

'Alright, now seems to be a good time.' Saiki was standing outside the doorway to the classroom, preparing to simply jump out the window with his bag. It would be difficult to explain how he got the bag back to the three witnesses, but he could always avoid it by feigning ignorance. If Saiki was lucky, before he entered the room, he could instigate a fight between Kaidou and Nendou and the bag would disappear in the confusion. No doubt Teruhashi's attention would be divided then.

And then the door swung open violently and Nendou slapped wildly at the air at light speed. "Stupid flies!"

Saiki would normally make a comment that there was no reason for Nendou's actions, but currently he had worse issues. Both of his power control devices were knocked away by Nendou, and Saiki was unable to react in time to catch them in mid-flight and put them back on.

'Shit!' When one control device was knocked away by Nendou in the past, Saiki lost consciousness. When he takes one off himself, he can prepare himself and hold together the power until replacement. Losing two suddenly at once, would easily make him lose consciousness.

In a split second, Saiki used astral projection to split control over his body. Unfortunately, due to the speed at which he did this, he only had control of his body from under his stomach. To avoid too much suspicion, he kneeled his newly visible body downwards. When Nendou made contact, the invisibility was dispelled.

"Oh, hey there buddy!" Nendou exclaimed.

Saiki couldn't respond, as the upper half of his body was currently unconscious, and his mind was overwhelmed by how much he was thinking. It would be difficult to explain how the control devices would fly towards Saiki at breakneck speeds but he couldn't risk… well, whatever would happen when his control devices were out. After all, in his new game, the world can explode if he was too stressed. He couldn't discredit any possibility at this point. Plus, he would only need to explain to Nendou who seems to have a rock for a brain anyways.

Saiki motioned his astral projection's hand over to his control devices and telekinetically thrusted them towards his body. Even if the power was too strong, Saiki's naturally psychic enhanced body should be able to take damage from them fine enough. 'Should be' being the operative phrase here.

Immediately replacing the one that he slammed against his leg on the right side of his head, Saiki watched as the other control device, due to the uncontrolled force he used to telekinetically rush it towards him, caused its direction to severely curveball. Saiki placed the rest of his astral projection back into his body to regain full control, or at least enough to move. After unsteadily getting up, Saiki turned to the other control device which lodged itself into a red brick wall.

'Wait. Brick wall. I must've teleported somewhere else.' Saiki thought to himself, but before questioning further, immediately ran over and replaced the other control device onto the left side of his head. Taking a look around, Saiki realized he was in a dingy back alley of an unrecognizable city. He didn't remember any place in Tokyo in recent memory that had this shade of red bricks so Saiki assumed he had just teleported himself out of his panic during his uncontrolled state.

Before he prepared himself to teleport back, Saiki realized he had temporarily lost his ability to read minds. How did he realize this? Because in that very instant, he regained his mind-reading ability and the thoughts of those around him poured into his mind. And they were all very similar.

'What was that immense power?!' 'I-I just got overwhelmed by something…' 'Something really strong just…I…' 'What is this aura?!' 'Is this somebody's Semblance?' 'I can't stand…what just happened?' 'I-is there a Grimm somewhere in the city?!'

'Wait, some of those thoughts were odd. Wait, ignoring that, the problem is that everyone felt my psychic power. Even if unpredictable, that shouldn't happen… let alone to that extent.' Saiki thought in response to the flood of thoughts before imagining his bedroom. His bag was the least of his worries at this point, he needed to leave before people took notice.

'T-the aura's gone?' 'I need to go check that out!' 'It was in this direction, right?' 'Should I go get some huntsmen?'

'English, huh? Accent sounds American-like. West Coast probably, then.' Saiki thought as people's thoughts kept flowing into his conscious. He prepared to teleport straight home, and closed his eyes to focus. Saiki imagined being in his bedroom, but when he opened his eyes, he was still in the same exact alley.

'Shit. Still don't have that much control, huh. I don't have time for this.' Saiki cursed under his breath, as he could tell oncoming bystanders had already recovered enough and were approaching, Saiki looked straight up. Getting an idea of what the roof of the building in front of him looked like, he teleported to avoid the oncoming foot traffic.

The short range teleportation was easy enough to pull off, and Saiki began bracing himself. With his powers being difficult to control, he ended up teleporting a good 50 meters above the roof and was falling down stomach facing the ground. While he could normally fly and land safely, Saiki's small teleport left him with no feeling left in any of his muscles and his powers were not responding. It was a bit fortunate that through his out-of-control powers, he started falling at terminal velocity immediately. This way, people might not be able to look up in time.

'Dammit, this better not make too much noise.' Saiki thought, not caring enough for his wellbeing as his body's natural strength would easily be able to take a fall from that height. Even if he had teleported to outer space, at normal psychic capacity, it would be doubtful that any real damage would occur.

In the few moments while he was still in free fall, Saiki received more thoughts which put him into an even more distressing situation. Each thought of those that made visual contact into the alley were all virtually the same, and of course, someone decided to blurt it aloud.

"There's a bunch of kids over here! Someone get help!"

At the very least, the yelling disguised the crashing noise of Saiki's face implanting itself into the ceiling.

'Why don't you get it then and not yell it?!' Saiki thought, head throbbing upon the crash, not enough psychic protection to close a bloody forehead wound. Additionally, his entire body was currently facing down into the ceiling, and while Saiki could feel himself gradually regaining the ability to move his body once again, he was unable to move enough to turn his face away from the ground. At least his green-tinted glasses seemed to be intact.

More importantly, there were four unconscious kids in the alleyway he was just in. Saiki had a sneaking suspicion of who they were, but still hoped that they were kids from other anime that just happened to crossover with this world as well. Actually, no wait, four Narutos would be annoying.

The voices began speaking their thoughts again.

"Are these guys the source of the aura?"

"Are they really that powerful?!"

"That's not the important thing right, now! We should take them to the hospital! One's already bleeding!"

'Don't worry about that bleeding, that bloody nose probably reopened from earlier.' Saiki thought after ensuring they weren't talking about him, but a purple-haired kid, that probably goes by the name Toritsuka.

"They're waking up! Shouldn't we get a huntsman or something?"

'A huntsman? Military society with people following those with guns? That explains why their thoughts seem to be like sheep.' Saiki thought, normally not having angry thoughts of this level but it was a stressful situation he was face-down in. Well, he did finally gain enough muscular control to move his face away from the ground but the point still stands. Unfortunately, he had no feeling of relief as his suspicions of the mysterious four were confirmed.

"D-Did Dark Reunion just knock me out? Is it actually coming true?" Kaidou Shun thought aloud, as he supported himself against the wall. Achieving a similar thought process as Saiki upon seeing bricks, "Teleportation, huh? No one else needs to get hurt then."

'Well, your ego is going to hurt when you realize people can hear you. Also, how were you the first one to get up, anyway?!'

"H-hey, are you alright? What's dark reunion?" Saiki assumed a bystander had actually approached Kaidou. 'Dark Reunion' was probably the only words he recognized anyway, no one seemed to recognize Japanese.

"Aaahhhh!" Kaidou yelped. Saiki could feel his embarrassment from the roof. Although, he did suppose it would probably be surprising to hear English next to you all of a sudden.

'Should I help translate? Wait, no. I can't be sure I have control over that ability yet, and if in the future, I'm not around and there's no translation, they might suspect something. Kaidou, you're on your own. Do you actually have enough chuunibyou knowledge to understand enough English other than 'Dark', 'Reunion', or 'Judgement Knights of Thunder'?' Saiki thought out in an instant.

"I have friends!" Kaidou blurted out in an embarrassed panic.

'Why is that the first thing you say?! Are you that insecure?! And it was in English!'

"Ummm, yeah? Are they alright?" The bystander probably motioned, or at least looked behind Kaidou, Saiki assumed. At the very least, they weren't outwardly laughing at Kaidou's antics.

'What?! Teruhashi-san? Transfer student? And he's bleeding!' Kaidou's thoughts exclaimed as if he were a main character explaining his motley crew of compatriots. At least he didn't say it aloud.

'No, that's just a nose bleed.' Saiki re-iterated.

'He's bleeding from his head! That looks serious!' Kaidou thought further.

'No, that was from when he was caught and beat up.'

"Are you okay?!" Kaidou rushed over…to someone, Saiki couldn't tell- oh no, wait, it was Teruhashi. His thoughts became coherent enough to tell that much.

"Umm, what is diejoeboo? Is that her name?" The ignorant…well, confused bystander asked, probably repeating the only bit of Japanese he heard with a butchered pronunciation and written in crap Romaji. Wait, no, only the readers can see that… good thing this is the author saying Saiki's thoughts in text form rather than only Saiki's thoughts as it normally is.

'Hmm? Someone important is coming. Police? No. They actually brought a hunter. Wait, huntress?' Saiki thought. It should probably be mentioned that Saiki fully learned English, and knows basic speaking level of other languages simply because he figured he should learn it one day. Certainly helps in cases where he might need to translate, this not being one of them.

Saiki, around the same time people began reacting to the huntress, attempted to stand. Fatigue, however, finally caught up from losing both limiters at once and he passed out on the ceiling. When he looked back at this moment, Saiki was surprised it hadn't already happened.

- Ψ-

Saiki's eyes shot open. His dark purple pupils readjusted themselves to the newly darkened world.

'Oops. How long was I asleep for?' Saiki thought as he picked himself off of the ground, instantly dusting his mint green student uniform off with his psychic power.

'Hmm. At least I've regained control over my powers. My movements don't seem particularly hindered either.' Saiki confirmed by doing simple jumps and practicing the alphabet of sign language. Saiki never really needed to use sign language but going over the symbols provided a simple focus exercise which was useful in cases such as this.

'Considering it was late day when I first teleported here, I guess that…' Saiki's thought was interrupted when he look up into the night sky to get an idea of what time it was. Saiki was certainly surprised when part of the moon was blown off, with shattered remnants floating near the space they used to occupy. 'Oh great. Did I have another accident and blow up the moon…again? The limiters should've prevented that but I can't be certain when both of them were taken out at the same time.'

'Oh well. I'll just have to go fix it…' Saiki's thought trailed off when none of the thoughts pouring into his head were about the cracked moon in the sky. Did no one notice yet? Or… is there a reason not to care? Walking over to the edge of the roof, he looked towards a random black-haired individual in a suit. So far, a normal everyday individual in a normal post-work situation.

'He's coming back from work, it seems like. Alright, hope you don't mind taking a few moments to admire the sky.'

Saiki planted the thought of 'I should look at the moon.' into the man's head. Since the guy seemed tired, Saiki assumed he wouldn't question his thoughts very much. Watching as the man turned his head to stare at the moon only to blink a few times and return on his merry way with slight confusion plaguing his thoughts now, Saiki made a surprised note of his observations.

'Alright I doubt I was knocked out that long but just to make sure…' Saiki walked back to his initial landing site and restored it back to the state it was in a day ago. Silently praying there wasn't that much movement of furniture inside the actual building that day that would be affected by the restoration as well, Saiki watched as the slight cracks on the roof made from his harsh landing disappeared. As his repair ability only rewound time a full day, it confirmed his hypothesis.

'It's unlikely no one would be thinking about the shattered moon if it had happened within the day. Unless I mind controlled everyone during my unconscious state as well. I doubt that level of coordination would happen however due to the random nature of my powers when uncontrolled.' Saiki sighed.

'There's also the issue all of these people.' Saiki looked down onto the nighttime street crowds. Well, not much of a crowd compared to similarly large districts in Tokyo. 'While bunny and cat ears are certainly not anything new, the fact that people are casually walking around with things from crocodile tails to rhino horns that seem to properly move bothers me.'

Focusing his vision, Saiki also saw the faint amount of power, not unlike something he or Aiura might have if they weren't suppressing their abilities, which radiated from almost every individual like an aura. I'm definitely not in Japan. I thought I was in America due to people's accents and dialogue but that doesn't seem to be the case either. There are no noticeably fancy skyscrapers on the horizon.'

'This architecture also clouds the issue of where I am. It's clearly both futuristic and ancient at the same time. With obvious building techniques being advanced but the materials themselves lacking the modern appearance. But there's nowhere in my mental record of literally every inhabited country that matched this building style. There are clear hints of a militaristic society present in the buildings themselves, so it should be in my record…'

'I'll try to go back home. I still need to get the others from this place but I should check if I can even return at all since it hadn't worked earlier.' Saiki thought. 'Since I should be back in shape, teleporting to my room would be possible no matter where I was on Earth.'

Saiki refocused his mind on his bedroom and imagined his desk, and landing into his chair. However, Saiki's attempt to teleport was still thwarted, as he kept finding himself back on the same roof.

'Tch. Teleportation still doesn't work. If I'm really not on Earth, that leaves a few possibilities. Another world, another timeline, a possible future, another dimension, and an alternate universe. Until I narrow it down to one of those, I probably shouldn't try anything drastic or else I may end up in an even worse situation. Now then, I suppose it's time to find the idiots.'

Saiki crossed his eyes to begin a search using his clairvoyance. After a check on each particular building of importance, he had to blink to reset since crossing your eyes after a while gets tiring. Having to cross his eyes to use clairvoyance at least made sure it didn't happen accidently, although it did make him look stupid. However, it was difficult to search via clairvoyance, since it was only instant if he saw a place before, otherwise he would have to manually control his clairvoyance path.

Saiki couldn't find his classmates, or anyone still reeling upon seeing Teruhashi. He did stumble across some interesting things though. Protest groups for something called a faunus, people holding out flyers, and huge mechs guarding entrances. The lattermost being the most exemplary. 'Definitely not Earth.'

'Guess it's only natural that they covered plenty of ground during the time I was unconscious. What a pain.' Saiki walked over to the edge of the roof overlooking the alley he initially found himself. While he planned to float himself down, Saiki found that the alleyway had been closed off by guards. It surprised him.

The reason it surprised him at all was because the guards didn't have any thoughts. A mere glance could reveal why. They were all robots, much more small than the mechs he observed before. Their entire bodies were metallic, with dark grey metallic plates and red lights covering its body. If he was a normal high schooler, Saiki might have described them as creepy.

'Robots, huh. Humanoid as well. Well I can't read your minds for information but your owner, or at least your manufacturer, should be on you somewhere…' Saiki searched through the entire structure using his automatic x-ray vision but unfortunately it seemed like not many people wanted to take credit for the robot soldier. All he could find was its model, "AK-130", and a thing that took clairvoyance to get a proper look inside what Saiki assumed what its power generator.

Powered by the Schnee Dust Company.

While it was far from learning his classmates' location, it's not like he had anything else to go off of. Since Saiki had been unconscious for a while, it wasn't like he was tired at the moment, so he should be able to search through the night.

'Alright. Time to get started.'