Underground, they broke up into groups and are walking down an empty hallway.
Moment of truth is upon us.

"Hello? E Class, can you hear me?" The Reaper's voice came out from the ceilings. "Nice work, honestly I'm happy you escaped. It'll be a great warm-up before the real game. I expect nothing less."

"I knew it... it's a game to him." Rinka said.

This isn't some vindictive act like with Takaoka. It's different, he's an unknown quantity.

"We'll intercept him here. Whichever way he decides to he comes from, we'll still have him outnumbered. So stay alert." Isogai commands.

Hara took out her phone, "Hey Ritsu, we need some backup, kay?"

Instead of her normal avatar, Ritsu is now in her pajamas, with drool coming out of her mouth, picking at her nose with "Hacked" printed on her face. "Yeah not feeling it. Be realistic, like I'm gonna go up against the Reaper. I'd rather power down than like do stuff." She said lazily, watching virtual TV.

"Ritsu's been hacked!"

His footsteps echo through the hallway. "he's coming." The Reaper appeared before them as a mere shadow in the dark. They all gasp in surprise at his smoky appearance.

"Take him down!"

"Dumbass is just walking into us.!" Yoshida and Muramatsu run forwards, ready to attack him, but instead, the Reaper disappears and reappears behind them, knocking them conscious.

"hand-to-hand combat was the first skill I honed as an assassin. So as you might imagine I'm rather good at it," He said, and then proceeds to punch Kimura, making him slide against the wall and fall down.

"A talent 99 percent unnecessary for this profession, but without it, the remaining one percent of my targets would survive. If you want to be a killer... it's an indispensable skill. Take my word for it," He said, and then rushes towards Kayano, striking her stomach. "Females are so very fragile. Don't expect me to handle the rest of you this delicately."

Nagisa steps forward, bloodlust swirls around him. "Stay back, I'll take him." He said, looking up glaring with rage.

Editor screams: yes, avenge your future wife.

"Are you out of your mind..." Karma warned.

"She's alright, that sound crunching noise was from the sound of her gear absorbing the impact. Still, though the Reaper thinks her ribs are cracked, which really pisses me off." When I'm like this my bloodlust demands satisfaction for all of us...With these two hands... Just when he lifts up his hands to do the clap he did on Takaoka, the Reaper claps, and Nagisa starts to fall.

The Reaper went behind Karma, as he turns around. 'well damn. This isn't gonna work.' He thought as everyone gets taken out. 'it's just like how (f/n) predicted, play-by-play.'

He goes back to Nagisa, explaining, "The classic Studder-Clap. Yours and Lovro's might be able to startle a car. But in more sufficiently skilled hands, the move can accomplish quite a bit more."

"Human consciousness has a frequency: the higher the peaks, the more sensitive one is to stimulate. When your prey is in a particularly agitated state of mind... Powerful enough soundwaves can work wonders." He continues. "of course they'll be started but that's hardly an 'oh no'. No voluntary nervous system will be temporarily paralyzed."

Nagisa finally dropped to the ground. This is...top-level stuff...

"So that's it? Well okay then... but seems I'm short on few of you." The Reaper thought to himself.

Second Unit: Irina Rescue Squad

Terasaka finally breaks open the door, and Kataoka walks in, gasping seeing Ms. Irina in there. "Professor Bitch!" The girls quickly rush in, releasing the ropes binding her.

"She's still breathing!"

"You're in charge of taking care of her," Kataoka said to Terasaka, who sighs. "Man, I always get stuck with the grunt work."

"Okay, let's rendezvous with the other and get the hell out of here!" She said.

"Got it! yay, what a relief, I thought for sure she was a goner." Kurahashi smiles cheerfully.

"Right?" Yada agrees, but then heard a thud behind them. They look behind to find Ms. Bitch. "How lovely to finally be myself, six whole months of sleep before my prince came to wake me. Now to put you brats out of commission"

"What are you talking about?"

"this can't be real"

"Time for your final lesson, boys and girls. I hope you're ready." She steps forward, but then squeals in pain, falling down. "Ow! son of a-! I stepped on a rock bare-foot." Okajima and Takebayashi went to help her but instead were all stunned.

"Not cool, that was a dirty trick, we were actually worried about you." They all fell with a thud.

"Yeah well, what are you gonna do. blame it on the experience gap. I've seen a little bit more been than you punks."

"already? you took them out all by yourself?" The Reaper asks disappointedly.

"I was only following your advice: there's no point growing with a bunch of snot nose brats." Irina plainly answers.

"Glad you finally saw the light, they're only children after all, for all the good they are to us, they might as well be from another world. While they breathe clean air, we breathe the blood-mist."

"You there, what'll be then will you come quietly or stand your ground in a losing battle?" He asks Itona.

"Blah blah blah, dude bring it on Itona and I will kick your ass!" Terasaka said, but Itona just surrenders. "If we fight we're toast, this guy's on a whole other level. If even (f/n) can't lay a finger on him we stand no chance."

"you're kidding me."

"It's like you said if we lose today, so what, All we gotta do is win once. Be patient."

*******

"so now what?" Kayano asks.

"Listen, buddy, I don't know what your big plan is for killing Koro-sensei, but I wouldn't count on it going smoothly," Karma said.

"Oh don't worry, I'm a gifted improviser, that's my job. I can work with bad intel as well as good." Reaper said, smiling. "huh?"

He quickly showed Irina footage from the security cameras. "Karasuma? why is he here?"

"probably the octopus, he told us once if there's ever a wall we couldn't get over he'd take over from there. We're gonna be okay." Itona calmly states.

Outside...

"haha got their scent, didn't I tell you this clever canine disguise. I'm a natural." Korosensei said happily dressed in a dog costume.

"there is absolutely nothing natural about what you're doing right now."Karasuma criticized as he loads his gun. "so he holding the kid's hostage?"

"indeed." Korosensei replied "I suspect that he's using them as a means of luring me to my death.

Back inside the reaper watched everything on surveillance. "aw shucks. well, that certainly throws a monkey-wrench into my plans."

"but I thought he was in Brazil for that big soccer game" Rio comments.

"so be it." The reaper sighs. "Plan 16," he told Irena.

"this is my moment to shine," she smirks.

*******

Suddenly the ceiling opened up and something was dropped into the room where the students were with a thud. "Koro-sensei" they gasped.

"Hello, class I trust you're all unhurt." He said slightly embarrassed.

"no offense sir but I can't believe he caught you," Maehara said.

He touched the bars and watched his tentacle melt. "the bars are forged of anti-me materials. Tricky stuff to work around to be sure, but you'll be thrilled to know my body has, at last, overcome it."

"wait are you serious."

He starts crackling, "behold boys and girls, my top secret weapon; the tongue."

He starts licking away at the bars. "coated by protected digestive juices, I'll haf deez farz worn down to nothing in thoo thays."

"We don't have that kind of time" The class shouted.

"Sorry to interrupt but if you want their neck braces to explode by all means keep licking." the reaper warns.

"wait seriously"

"Okay, let's get on with it." he jumps down from the floor above, "this room is about to be flooded. We are in a drainage canal when I send the signal to the control room above, water would come gushing in and these bars will essentially become a noodle press."

"hold on, you're not gonna do that with the kids still in there" Karasuma steps in.

"of course I am." The reaper said cheerfully. "it's too late to wait."

"Irina, you knew this was going to happen didn't you." He turns towards her.

She just calmly replies, "I'm sorry, results are the priority here. you wanted professionalism."

"I realized my method seems a bit harsh, would you prefer it if I let the best chance at saving the world slip through our fingers." The Reaper asked.

Sir what if a situation comes up where killing him means sacrificing the children. Do we have a specific policy on that?

It's probably best if we take that on a case-by-case basis, odds are it will come down to that at some point before this is all over so I'm certain you'll make the right call on our behalf...

'Well here we are and in effect, it's my call: save the kids or saves the world' these words echoed through his head.

Well, my decision is ... "here's the government's official stance" and punches him square in the face. "saving the world isn't worth the lives of 27 children. If you still plan on killing these kids... I'm gonna shut you down."

'So cool'

"FYI Irena, a true professional gives a damn about the bigger picture" He criticized her.

'if I spend any more time dealing with this nuisance, my plan will fall apart.' The reaper thought as he made a split decision and make a break for the control room.

"like hell," Karasuma chases after him.

"Mr. Karasuma, turn on your transceiver" Korosensei shouts from behind the bar.

"Moron, him and his ethics, Karasuma may stand apart from the herd, but The Reaper goes further," Irina said smugly. "Exhibit A: he trapped the octopus."

"Please, Professor Bitch," Yada begs.

Hearing a noise from her earpiece, the Reaper said, "Irina, I need you. I've set a booby trap. While Karasuma tries to disarm it, shoot him in the back. Thanks."

"Understood." And went to accomplish her task.

"so anti-climatic Korosensei" A voice calls out from above as soon as Ms. Bitch is out of earshot. "I didn't think you would be caught so easily."

"(f/n)? I thought you said you wouldn't come," Nagisa said.

Flashback

"Oh thank goodness you're awake," Okuda exclaims, overwhelmed with emotion. "I thought or sure you were going to die... your breathing kept getting slower and slower and you were so pale..." she sniffed, crying.

"don't worry it was my immune system's defensive mode, where my body shuts down momentarily to deal with the poison... think of it as a deep-sleep." (f/n) explains moving her hands to see if her vitals are still okay.

"well it's good that now your awake, we could really use your help," Isogai said. "we're going to the location, and rescue Professor Bitch."

"Yeah, and here's the plan." Rio started, "We will go in undercover and have Ritsu and Itona's machines scope out the area, then~"

"sorry, but I won't be going." (f/n) interrupts her.

"but why?"

"before I attacked the Reaper, I did an analysis... and the only reason I attacked him was because I knew he won't kill me." She spoke softly. "If we carry out this rescue, confrontation with the reaper is inevitable, and this time only death awaits."

"Also, it seems you all forgot what Professor Bitch's occupation is... this is clearly a trap." (f/n) warns.

"Yes, but you heard what he said if we don't all show up..." Kayano points out.

"that won't be a problem, he doesn't know how fast I can recover from something like poison, he would either assume I'm dead or still in a coma." She assures them.

Flashback ended

(f/n) sighs, "I recalculated, if I take into account that The Reaper thought I'm out for the count, he won't suspect me calling for backup and our chance of survival increases by at least half."

With one strike she sliced through the bars like it was made of butter, then with extreme precision took off the neck braces.

"come on" (f/n) gestures them to follow. "while you guys had the time of your lives locked up in prison..."

"Hey!!!"

She ignores her classmate's protests and continues, "I unhacked Ritsu and she managed to find us a secure location to hideout without having his eyes on us."

"good work (f/n), I'll go and support Karasuma," Korosensei said blasting off.

editor: blasting off...at the speed of light, so surrender now or prepare to fight (lol). Meow that's right.

********

'You faked me out with tomato juice!' The Reaper thought, breathing heavily through the sharp pain.

Up on top the metal bridge, Ms. Bitch and the rest of E-class rushed over to watch their fight.

"Sorry friend, you screwed up," Karasuma said. "Messing with my students and colleagues is a bad idea."

Upon hearing this, Irena was deeply moved.

"Wait! Who else could kill him, if not me!?" The Reaper asks.

"it's hilarious, how pitiful he looks." (f/n) smirks.

Karasuma-sensei grins wickedly, clenching his fist as he replies, "You'd be surprised what a classroom full of motivated kids can accomplish!"

He then lands the finishing blow to the Reaper with a lot of weight packed behind it, knocking him out cold, falling into the water.

"I think it's about time you quit the killing game. but hey with your skills they'll love you at the unemployment office."

**********

"The man had skills, make no mistake, but he put too much faith in them," Mr. Karasuma explains.

"Whoever set him on this path was a fool. His talents might have served him just as well on a straighter path." Koro-sensei sighs.

"I suppose it all boils down to the world we know. How it shapes the values of our lives"

Koro-sensei pats Nagisa's head. "Yes, well said. Wouldnt you agree, Ms. Irina?" He asks, and they all stared at her, who stiffens then squeals, and everyone sweat drops when she continues her attempt to escape.

"Where do you think you're going?" They start chasing her, and she screams.

When they finally capture her, she yells furiously, "Go on and do your worst, think I'm not ready! you little punk bastards all unlocked their animalistic lust anyway. The boys are pent up and the girls all insanely jealous— now's your chance to set those emotions off like sexual fireworks!"

"do you even listen to what you're saying!"

"yeah even (f/n) is speechless" Karma remarks

"I am insulted." She put her hand to her chest looking deeply offended.

"Just shut up and come to school tomorrow like always. No more taking off for days at a time." Terasaka told her.

"and besides you never finished that story—conning Arabian royalty remember? You had the region on the brink of war!" Yada winks.

"If you don't come back, you can kiss your copy of that French manga you lent me good bye~ Boys over flowers!" Kataoka threateningly teased.

"Okay just so we're clear you do realize that I was going to kill you all." She reminded them.

"I don't see the problem. A fair amount of treachery is to be expected, these things come with the territory do they not?" Takebayshi asks, pushing up his glasses.

Yoshida and Muramatsu help her up as they all smile at her. "I mean, come on, if we can't handle a fouled tempered backstabbing bitch, we really wouldn't have a lot of room to say we'recut out to be assassins" Rio said.

"they're right you know." Karasuma walks up to her, and offers her a rose, shocking everyone. "For you. And before you ask, nobody put me up to this, consider it taken from a vanquished enemy in your honor."

"happy birthday. sorry if I'm a little late." He apologized.

He just shoves it in my face like a barbarian! And it's not even a proper bouquet! Un-freaking-believable I should give the man a piece of my mind! Yeah, I'll tell him off...

She lifts her head and smiles softly, "it's lovely."

"Alright, gang let's go build us a ship!" (f/n) announces.

"No fair, I already called dibs on him!" Kurahashi cries, and Kataoka and Yada try to comfort her.

"Mr. Karasuma a word before this book is rated mature content." Korosensei jokes.

"Trust me it won't!!! What do you want?"

"Today was almost tragic," He said seriously. "I don't want the children to be put in this kind of danger again. I must insist on an environment where they can kill safely. Immune to the intrigues of a madman like The Reaper."

"right there with you."

*************