Sword check ..Lunch box check ..pen check Highlighters check Erasers check Pencil sharpener check Ballpoint pens check Pencil box check Glue stick ,check Notebooks ,check ,Calculator Calendar ,check ,Graph paper check ,Folders check Hole-punch Lunch mo .."

" Finish fast or we'll be late for the class ! "Rista shouted

What a pushy woman..." Seiya commented but went faster through the mountain of supplies he had " 30 sets of armor, check ,300 smoke bombs, check and 500 healing herbs check , spares armor spare armor for spare armor check ..ready perfect !!"

The long suffering peaceful silence of the hallways was once again shattered by a loud clang, followed by a muffled cry. Kazuma poked his head out of the classroom to investigate and found Seiya standing over a student, wielding a collapsible titanium shield.

"Uh, Seiya-kun?" Kazuma called out. "What're you doing?"

Seiya didn't glance up. "Neutralizing a potential threat."

The "threat" in question groaned and sat up—it was Subaru, holding a spilled juice box and looking thoroughly unimpressed. "All I did was drop my drink!"

"Exactly," Seiya replied, lowering his shield. "A wet floor creates a slipping hazard. Someone could fall, break their neck, and die. Risk mitigation required immediate action."

Subaru pointed at his now-empty drink. "You flattened my juice! Where's the mitigation for that?"

Seiya pulled a second juice box from his bag and tossed it to Subaru without a word.

"..." Kazuma blinked. "Man, you're intense. Don't you ever relax?"

"No," Seiya said bluntly, before returning to the classroom. He paused at the door and handed Kazuma a rolled-up mat. "Here. If the ceiling collapses, use this to shield your head."

Kazuma blinked. "Why would the ceiling—"

"Probability is never zero," Seiya interrupted, disappearing into the room.

Inside, Seiya surveyed the class room, eyes scanning for weaknesses. Darkness was struggling to fit her towering sword under her desk, Aqua was balancing a tower of erasers for no discernible reason, and Megumin was loudly reciting explosion chants. He frowned.

"Megumin," he said sharply, "do not invoke spells indoors."

"It's just practice!" she replied with a huff. "You're so paranoid. What's the worst that could happen?"

"Your magic could destabilize the structural integrity of the walls, resulting in a catastrophic collapse," Seiya answered immediately. He reached into his bag and pulled out a foldable brace, which he affixed to the nearest corner.

"What... is that?" Aqua asked

"A portable load-bearing support," Seiya explained. "I have five more in my bag in case of emergencies."

Kazuma, now leaning against the wall, raised a hand. "Question: how much of your stuff is for 'emergencies'?"

"All of it."

"..." Kazuma sweatdropped.

Class began as usual—or rather, as usual as it could be when Pandora's Actor was the substitute teacher. He pranced into the room, wearing a flamboyant cape that swished dramatically. "Good day, meine Schüler! Today's lesson is... Advanced Occupational hazard and Safety Protocols!"

Seiya's hand shot up before anyone could groan. "Permission to critique the classroom's safety measures?"

"Eh?" Pandora's Actor laughed. "Why, of course! I admire enthusiasm."

Seiya immediately stood and began rattling off a list. "The emergency exits are inadequately marked. The windows lack reinforced glass. And there is no disaster preparedness kit. I have, however, taken the liberty of installing one."

From under his desk, he produced a bright red box labeled Perfect Survival Kit: Contents Confidential.

Subaru tilted his head. "What does it contain?"

"Everything."

"Define 'everything.'"

Seiya's eyes narrowed. "No."

Before Subaru could respond, a loud rumbling interrupted him. The students exchanged uneasy glances as the floor began to shake.

"Earthquake!" Aqua screamed, jumping to her feet. "Everybody panic!"

"Do NOT panic," Seiya barked, pulling a grappling hook from his bag. He fired it at the ceiling, anchoring himself firmly. "Deploy your personal safety equipment immediately!"

Kazuma gaped. "We don't have personal safety equipment!"

Seiya sighed, as though this were a personal failing on Kazuma's part. He reached into his bag, pulling out helmets, knee pads, and a rope ladder. "Use these."

"Where did you even—" Subaru started, but a loud crack from the ceiling cut him off. Debris rained down, and Seiya swung across the room, catching a falling light fixture with a net.

"This is absurd!" Subaru yelled, diving under a desk. "How are you so prepared for this?"

"I prepared for 56 different scenarios this morning," Seiya replied. "This is number 23."

By the time the earthquake subsided, the classroom was in shambles—but everyone was unharmed, thanks to Seiya's intervention.(Although some like the guardians and Ainz had no need for safety)

Pandora's Actor clapped enthusiastically. "Marvelous! You turned disaster into triumph!"

Seiya didn't respond, already busy assembling a makeshift barricade from overturned desks.

Kazuma slumped against the wall, exhausted. "I'll give him this—he's a pain , but the guy's got results."

"You are responsible for the earthquake aren't you ?"Ainz accussed Pandora's Actor

"Ah! As expected of my Father yes it was me"

"..."

Currently Ainz Ooal Gown was deep in conversation with Tanya von Degurechaff,

"You're telling me," Tanya began, eyes narrowed, "that your magic requires... nothing? No incantations, no chants, no calculations?"

Ainz's skeletal face tilted slightly. "That's correct. I simply will it to happen."

Tanya's grip on her pencil tightened. "Do you have any idea how many sleepless nights I spent memorizing formulas? How much ammunition I've wasted aligning spells with artillery?"

"I sympathize," Ainz replied. "But you see, it's less about effort and more about the absolute dominance of the Supreme Being."

From the next desk over, Kazuma, leaned in with a grin. "Tanya, maybe you're just jealous? I mean, Military science magic can't compete with Game logic magic. Basic math, right?"

Tanya shot him a glare sharp enough to cut steel. "Do you enjoy being reincarnated, Kazuma? Because I'm happy to accelerate that process."

"Chill!" Kazuma interjected, raising his hands defensively. "We don't need another 'incident.' Remember what happened last time someone got carried away?"

The room collectively winced. Last week's "training exercise" had ended with Aqua flooding half the building in a failed attempt to cleanse a "cursed desk." It had taken two weeks to drain the gymnasium.

"Besides," Kazuma continued, "Ainz may be overpowered, but at least he doesn't blow himself up after every attack." He shot a glance at Megumin, who was bouncing eagerly in her seat.

"Explosion magic is the pinnacle of all spells!" Megumin declared, standing abruptly and pointing at Ainz. "Even your multiple magic cannot compare to the artistry of one, perfectly executed detonation!"

Ainz regarded her with an awkward silence. "I mean no disrespect," he began diplomatically, "but isn't your magic… singular? A one-time use per day?"

"Quality over quantity!" Megumin retorted "A single explosion can reshape the battlefield!"

"It reshaped my garden," Tanya muttered, her eye twitching at the memory of Megumin leveling the academy's flower beds during practice.

"Right," Kazuma drawled, smirking. "Except after every explosion, you end up flat on the ground like a broken ragdoll."

"T ..t..that!" Megumin huffed, puffing out her cheeks. "It's called strategic exhaustion! Real mages don't waste energy on petty physicality."

Tanya, seated at the front row, turned her chair to face them. "Strategic exhaustion is a phrase that only an imbecile would use. In a proper battlefield, you'd be dead within seconds. Efficiency is everything."

"Big words coming from someone who's—what? Four feet tall?" Kazuma quipped, only to feel a sharp zing of wind as Tanya's pencil flew past his ear, embedding itself into the wall behind him.

"Want to repeat that, Satou?" Tanya asked, her voice icy enough to freeze a volcano.

Thankfully (or luckily) Filo entered the class saying something about a emergency assembly saving Kazuma

To be honest Subaru always wanted to get transferred to another world where he would be like wow he's so OP full of cheats and good at every thing he does ! (No this has nothing to do with his need for attention or his inferiority complex just the same craze of every Isekai otoku and weebs )

Unfortunately reality really sucked he got killed several times is hopelessly weak seen several of his friends and people he loves die and can use only few moves that are totally useless against the main villains

Now that he had found himself in this strange new world, he was not getting (thankfully) killed or having any immediate threat out to kill him...No he is just a student attending High School...

"So why the heck am I in the middle of this " he shouted to the heavens as he sat in between Echidia and Emilia in the school auditorium along with every other person and witches (considering he knows only six not counting Satella) from his world

" Hmm it seems that there are others coming from Subaru's world too" Ainz noted as he sat in between Albedo and Shaltear while looking at a confused Enri and her younger sister

" Hai Hai! " Roswal clapped his hands to get their attention " it's so nice to seeee~ you all here "

" Sensei why are we all here "Numan asked

" It because of an emergeeengy~! "

" emergency!?? "

" It seems that there has beeen~ an outsider trying to influence this world " Roswal looked at Tanya "…more accurately two entities one who goes by the term being X "

" BEING X !!!? " roared getting up sending a large flux of power causing the school to shake ( and knocking out Grantz and scaring a few others )

" Hai he wasn't to haaappy with you being brought to this world against his will " Roswal continued unfazed " but not to worrry~he can't cause anymore trouble now that we are renovating "

" Renovating!? "

"So till the renovation is completed all students will have to stay in a single claaasss ! "

… … …

The hall broke into chaos