School would begin soon, but there was still lots of time left. Shiniko went to a convenience store near the school to buy some more ice cream, since she ran out.

"Hey, Shiniko, nice seeing you again." Greeted the clerk.

"Yeah, nice to see you too. Do you have any new ice cream flavors in stock?"

"Sure do! Wait here." The clerk said and left. 

As she was waiting Koro-sensei came in.

"Koro-sensei, what brings you here?"

"Payday of course." He said in a cheerful way.

"Right..." Shiniko replied kind of unsure.

When they were done talking, the clerk came out with three new flavors of ice cream.

"Here are the new flavors, take your pick. Oh! Hey there Big Teach! Long time no see!" The clerk greeted upon seeing him.

Shiniko chose a flavor and paid, then she waited for Koro-sensei.

"I know, right? Thank goodness for payday!"

After Koro-sensei paid, they left the store. Shiniko was not expecting to see one of her allies.

"Your one-stop shop for your cheap, delicious junk food. Well worth the trouble of going incognito." Koro-sensei commented.

"I couldn't agree more." Shiniko agreed.

"Hey, cut it out!" A woman's voice could be heard from a distance.

"Eh?" Koro-sensei made questioning sound.

"Koro-sensei, over there." Shiniko pointed out.

Nearby, there were three men surrounding a woman.

"Lighten up, doll face." One of them said.

"Please, I don't have time for this, my students are expecting me." The woman explained.

"So you're a teacher, are ya?" Said the same guy.

"What would you say to a li'l private tutoring to help get our grades up?" Said another.

Koro-sensei went up behind them, leaving Shiniko to hold everything, "Allow me to tutor you gentlemen on how to flirt with a lady."

Koro-sensei picked up the three man and tossed them into their car, "Lesson one: First Impressions. Know what your wheels say about your game." He started to wrap the car with pink ribbon.

The three men screamed, then shouted, "Why did you use pink?!"

Koro-sensei continued, "There is no lesson two." He went over to the woman and asked, "Are you all right?"

Shiniko swore she saw her flash a bit of her cleavage before going up to her hero.

The woman gasped a little before speaking, "Who said chivalry is dead? You're a prince among men. Thank you. I'll remember this kindness always." She paused, there was visible blush on her face, "By the way... I'm trying to find Kunugigaoka Junior High. Do you know where it is?"

~Time Skip~

At school, Karasuma introduced Irina to the class, and of course her act was totally fake. Shiniko knew the real Irina, but the rest fell for her trap like flies in a spiderweb, and she has her own desk now.

~Time Skip~

The class was outside playing a killing game with Koro-sensei. Then Irina came over.

"Yoo-hoo! Hope I'm not interrupting anything, darling! Mr. Karasuma tells me you can go Mach 20 and I just had to see it with my own eyes!"

After Irina finished talking, Koro-sensei dropped the soccer balls and Shiniko took this chance to cut of one of his tentacles.

It worked.

He was so distracted, he didn't even notice his tentacle was missing, but of course it regenerated.

"Well, he might've been exaggerating a tad."

Then Irina asked if he could get her some Vietnamese coffee.

"But of course, mon cher! It just so happens I know a fabulous cafe in Vietnam." Then he blasted off to fetch the coffee.

After the bell rang for next period, Isogai informed and asked, "Ah. It's about that time, Ms. Irina. I mean, that's the bell. Shouldn't we head back?"

Shiniko interrupted with another question, "Are you gonna drop the act now?"

The students looked at her with the 'what are you talking about' look.

Irina replied to both of the questions, "Sure, whatever. Knock yourselves out." She placed another cigarette in her mouth and lit it, "Teacher needs peace and quiet, though, so make it a Study Hall."

Most of the students were surprised by the sudden change of attitude.

"And another thing." Irina continued, "Let's agree not to call me "Ms." when the octopus isn't around. And we're definitely not on a first name basis. So drop it. When he is around, call me Ms. Jelavic."

The students were staring at her in silence.

"Heh. So what's your game, Ms. Jela-bitch?" Karma asked.

Ms. Jelabitch turned and pointed at him, "No nicknames!"

"We got ourselves a real pro here. Just a word of warning from those who've been playin' the odds. You're not gonna kill the octopus without help." He warned.

"Please, sweetheart. You're a bunch of saplings. Adults have their own way of doing things, take note. Speaking of which, you're Nagisa Shiota, right?" Ms. Jelabitch asked and walked over to him.

Then. She . Kissed. Him.

The whole class was shocked, but Karma just smirked, and as for Shiniko, she just sighed.

After she was done, she told Nagisa to show her his notes on the octopus in the faculty lounge in ten minutes. Then she dropped him on the ground.

As Ms. Jelabitch continued talking, Shiniko helped Nagisa get back on his feet, she swung one of his arms behind her neck and helped him up.

She looked behind Ms. Jelabitch, and saw the same men from before. Ms. Jelabitch explained what separated the amateurs from the pros. The students all went inside and Ms. Jelabitch was thinking to herself while doing something on her tablet.

Shiniko was listening to her music and eating the ice cream she bought earlier. She wished she could eat it in peace, but nope. The Devil kept asking her for some, and being the foodie she is, she was not going to give in.

"Uh...Ms. Jelabitch, ma'am? Are you gonna teach us, or what?" Maehara broke the silence, followed by Nakamura, "Yeah. C'mon, Ms. Jelabitch." Then Sugaya, "No disrespect, but you are a teacher, aren't you, Ms. Jelabitch?"

Ms. Jelabitch screamed, then shouted, "Ixnay on the bitching! The name is JelaVIC, understand! JelaBITCH is what I'll be if you don't get the difference through your thick, prepubescent skulls! Let's review! My name is Jelavic. "Jela-V!-vic!" Bit your lower lip and hum!" The students did as they were told and Ms. Jelabitch continued, " "V", excellent! Now practice that sound quietly for the next hour while I ignore you."

~Time Skip~

Every student was at shooting practice, except for the laid back redhead, and Shiniko didn't participate, she could practice on her own time.

All of a sudden, she heard hundreds of bullets being fired, and it wasn't the BBs. She went closer to the source of the noise and listened in from the outside.

When Ms. Jelabitch started making disturbing noises, Shiniko cranked up her music to full volume so she couldn't hear a thing.

A groups of students ran towards the shed and when Shiniko saw them, she turned down her music, luckily the noises stopped. The first thing she heard was, "Did you touch her boobs?!" From none other than the perverted Okajima himself.

Koro-sensei, who came out and had patches of different colors of fabric sewed on sighed, "If only I had the time to be really  thorough. But class isn't going to teach itself, is it, children?"

"What exactly went on in there, sir?" Asked Nagisa.

Right after he asked, Ms. Jelabitch came out in a gym outfit.

"Ms. Jelabitch has been stuffed into a tastefully retro gym outfit!" Nagisa then exclaimed.

"It would take longer for me to describe the things he did to this body than it did for him to do them." Ms. Jelabitch started to explain, "My back and shoulders have never felt looser. He somehow worked in a lymphatic oil massage. A change of clothes, just because. And he still has time to do this thing with his tentacles." Before Ms. Jelabitch fell, Shiniko caught her.

Nagisa turned to Koro-sensei and asked, "Koro-sensei, what is she talking about?"

His face turned grey, and answered, "Uh. Adults sometimes need special care." After seconds of silence, he continued, "Come now. Back to the classroom, boys and girls."

"Yes, sir." The student said in union.

Shiniko stayed behind to help Irina.

"Unbelievable. I've never been so humiliated in all my life! I am a professional, damn it! The octopus will pay!" Irina vowed.

"Better luck next time then, Irina." Shiniko said, while helping Ms. Jelabitch back to class. When they got back to the building, Shiniko went to the faculty lounge, knowing Ms. Jelabitch wasn't going to teach.

"Nyu?" Koro-sensei made a sound when he heard the door slide open, "Why aren't you in class?" He asked.

"Irina isn't teaching, so might as well hang here." She answered.

Karasuma got up and watched the class from the doorway.

All of a sudden, yelling could be heard from the lounge, it made Shiniko jump a little.

Soon, Karasuma and Ms. Jelabitch came in.

"Someone oughta slap the piss off of them! I am too fine a woman to be one-upped by a bunch of punks! They'd be lucky to lick the mud off my stilettos!" Ms. Jelabitch yelled and slammed her hands on the table.

Shiniko just watch as she ate her ice cream.

"In case you haven't noticed, sweetheart, the children don't exactly agree with that assessment. If you're gonna stick around for another attempt, I suggest you suck it up, march in there and give them an apology." Karasuma started.

"Do what?! I'm an accomplished assassin, not a glorified rugrat wrangler! Let me focus on what I'm qualified for!"

Karasuma sighed before starting, "Oh, fine. Whatever. Just come with me, please."

Shiniko stayed behind. When she got bored, she went outside and got some fresh air. When she went out, Karasuma and Ms. Jelabitch was back.

"Huh? They're just screwing around." Ms. Jelabitch stated.

"That's where you're wrong, Irina. They're practicing their hand-eye coordination skills to hit a moving target." Shiniko informed.

"Precisely." Karasuma agreed.

"What?" Ms. Jelabitch questioned.

"Everyone has two roles here. Assassin and student. Teacher and target. It's a bizarre classroom this creature's created, not a place for easy answers or tidy resolutions. Or one where we can afford to fit ourselves into simple categories. I understand wanting to take pride in yourself as a professional, but if you can't cut it as both assassin and teacher, you're toast." Karasuma explained. "You wanna stay here, keep at it, fine. Be my guest. Just treat those kids with respect." He said walking away.

"So, what are you gonna do Irina?" Shiniko asked, breaking the silence.

"I'm, going to apologize." Ms. Jelabitch answered.

Shiniko smiled knowing that she'll probably stay, and went back to class.

When Ms. Jelabitch walked in all eyes were on her. She walked to the chalkboard and wrote down a sentence.

When she was done, she faced the class and asked, "What word does "incredible" modify? You know this one." All the students took their seats.

Ms. Jelabitch continued, "Read it aloud."

"Y-you are incredible in bed." The students read.

Ms. Jelabitch told a short story and explained the purpose of communication, as well as apologizing. The student laughed, but accepted her apology. They gave her a new name, Professor Bitch.

She shrieked and yelled, "I hate you little turds so much!"

The whole class laughed, Shiniko noticed Koro-sensei and Karasuma at the door.

She continued her lesson until it was time to leave.

"So, how was it? Teaching I mean." Shiniko asked.

"It wasn't bad, but it was a bit infuriating, and thanks for not calling me a bitch." Professor Bitch answered.

"No problem, well see you later." Shiniko said as she walked away.

After walking, no, more like parkoured her way down the mountain, she got thirsty and decided to buy a drink.

When she finished getting her drink, she put it in her bag 'cause she felt the presences of her old classmates behind her.

"Look who came crawling back." One of then spat out.

"Well if it isn't one of the E Class failures." Said another.

"Should we teach her a lesson, girls?" The first one said.

"Definitely." They all said at the same time.

Then they started to attack her like a pack of wild dogs, jumping, punching, slapping, kicking and elbowing. They beat her so hard that she coughed up blood.

The other students didn't bother helping since she was in E Class, so they just watched.

Before passing out, she heard someone talking, but couldn't make out who it was. All she knew was that when the person started talking, the beatings stopped.

"What's this? A pack o' dogs attackin' an innocent, little mouse?" The voice taunted. 

The group of girls back up a bit.

"That's your cue to run away." The voice said in a threatening tone.

Shiniko completely blacked out.