Edit (12/6/2018): This chapter has been updated with a bit more context and less spelling and grammar errors

Hey hey hey, minna! This is BlueSkyBlue back with another chapter of "When Nagisa goes MIA"! This time is an Okuda edition, and I really hope you all enjoy it!

Also, THANK YOU ALL FOR THE LOVELY REVIEWS, FAVOURITES AND FOLLOWS. I never really expected this to be that successful just with the first chapter! 27 reviews! O.M.G! 25 favourites and 35 followers! You guys have no idea how I am like right now! Honestly, thank you!

Not again...

Nagisa stared dispairingly at his phone as he reread the message Karasuma had sent him earlier that day. Seriously, what is with this? When he signed up for this, he did not expect to be receiving messages from his ex-teacher all the time.

Sorry it had to be this early but your services are needed again. Do report to the Ministry of Defense tomorrow. -KT

It hasn't been a week since the last assignment was given to him, and now there's another mission for him? He groaned, tired from the extra workload he had to handle in his life.

He clicked his contacts list and scrolled through the names, searching for a suitable substitute teacher he could use this time. Karma is out of option, that sadistic man just had to drag in wasabi the last time.

He stopped scrolling, his thumb hovering a name, silently debating whether she would be the right person. And to be honest, it had been a long time since he even had a conversation with her.

His phone buzzed with another message from Karasuma, and he groaned. Screw it, he'll just ask her then.

"Boss?"

A scientist looked up from his work, frowning slightly at one of his subordinates. Though, he had to admit, this girl is one of his best workers yet, along with Takebayashi Kotaro.

Speaking about Takebayashi Kotaro... he really needs to talk to that boy again. How on earth can that boy manage his time between being a doctor and a scientist really baffles him. The next thing he knows, that bespectacled boy would get an overdose of gamma radiation and turn into a large green monster. It could happen, and the Hulk would really be possible.

"What is the matter?" He asked, reverting his attention back to the microscope in front of him as he examined a cell sample obtained from a cat's saliva. Cats were rally complex animals, and he really wanted to see if there's any way to combined cat DNA with others. That would be really interesting.

The black-haired girl, otherwise known as Okuda Manami, looked down and twiddled her fingers. "Um... C-Can I take a leave off for tomorrow?"

He turned towards her, experiment forgotten as he raised his eyebrow at the situation. "Going out for a date?"

"No!" She cried out, her cheeks a crimson red at the comment. "It's not anything like that! It's just... A friend of mine just asked me to take over his classes for tomorrow."

He frowned again. "Don't schools have substitute teachers for those?"

She shrugged. "I don't know, but I figured that I should help him out as he sounded quite desperate."

He peered at her as she stared at her fingers through her overly large glasses. He sighed. "Go on, then. After all, you had never took a leave off from work before..."

"Thanks, sir!" She cried happily. "I'll be going back to my research, then!"

The black haired class representative's right eye twitched as she stalked the hallways of Paradise High. Seriously, where did those two troublemakers go this time? She honestly hoped that they have not gone traipsing along the roofs of the schools again. Shiota-sensei was going to give them a pop quiz later that day and he expressedly informed them that it was mandatory for them to be present in school. As class representative, she was doing her job to make sure that everyone is going to class.

Stupid Satoshi, how did that guy get to be the other class representative when he does not really do anything anyways?

She continued to search the school compound, unaware of what was going on in her class at the moment.

The students of Class 3-5 stared dumbly as a black haired woman walked into their classroom, tugging a large suitcase behind her. The woman had a slightly petite frame, and her black hair was tied in to a single braid which rested over her left shoulder. She wore a pair of glasses and what seemed like a surgeon's uniform.

A tremor ran up their spine. Is this woman going to kidnap them and experiment of their bodies? Maybe that large suitcase is for her to put all their body parts into... Panic built up in their systems as they inch away from the front of the classroom.

"Good morning, class!" The woman chirped. "I'm Okuda Manami, and I'll be taking over your lessons for today!"

They blinked.

"So, can I begin roll call before I start lessons?"

Thoughts ran through the students' heads. The last time that chibi of a homeroom teacher of theirs set a substitute teacher for them, it did not end up well, should they take her cautiously?

"Akeno, Himejima!"

The guys stared at the woman, perverted thoughts ran through their heads.

"Danmaru, Jin!"

Let's have fun with her.

The same thoughts ran through the troublemakers' heads as they silently agreed to take advantage of this time their homeroom teacher was absent.

They totally forgotten about their incident with one Akabane Karma, and the fact that Shiota Nagisa would skin them alive if they managed to get out of this situation alive.

The students watched as Okuda opened that large suitcase of hers. Seriously, what was in that thing?

The woman took out several flasks containing weird looking liquid.

"Because I am not good with languages, Nagisa has given me permission to teach only Maths and Science today," she explained as she settled the flasks on the table. "I've been informed that you all are well taught about the subject, so I thought it would be more fun if I spice it up a bit."

She took out a live rat and selected one of the various weird looking liquids, pouring a drop or two into the rat's open mouth.

The rat turned purple.

She smiled at the class. "It's fun, ne? You'll all be taking turns mixing chemicals to create this same effect. I'll be evaluating you all with points, and by the end of the day, the one with the lowest points..."

The class looked at her, bored. All they cared was harassing her during their experiments later. How could this innocent-looking lady threaten their lives anyway?

"... will be my guinea pig for my latest experiment. There is no cure for it yet and you could possibly die."

They paled drastically.

She tilted her head curiously at their expressions. "Didn't Nagisa do this kind of stuff with you guys before?"

Screw her innocence... Her definition of normal is waaaay different than they had thought.

"Alright, class!" Okuda cheerfully announced. "It's time for the results!"

Sweat was literally pouring down their heads.

The door opened, and in walked a teal headed man. Immediately, the tension in the room was released as the students let out a sigh of relief as their homeroom teacher walked across the room.

Nagisa smiled at them as he walked up to the substitute teacher. "I think I'm feeling better right now. Thanks for taking over for me, Manami-san."

Worry was marred on Okuda's face. "Are you sure?" she asked. "What about-"

"-I'm fine."

"But it's almost the end of the day," Manami protested. "Why don't I relieve some of your burdens while you rest some more."

"NO!"

The two adults turned to the class.

"W-We mean, although it has only been a few hours..." one of the students stuttered.

"We miss Shiota-sensei already!" Another students hurriedly said.

Okuda silently formed an 'oh' shape with her mouth, as if she was saying a mental "Awwww."

"That's so sweet , Nagisa! It's just like back when we were with Koro-sensei!"

Nagisa flashed her another smile. "Anyways, can I take over now?"

"Oh, okay!" Okuda returned the smile. "Do you want me to stay with you?"

Before the teal headed teacher could say anything. Yet another one of the students cut in. "Manami-sensei, please could we have some quality time together with Shiota-sensei?"

This time, Okuda did squeal at the "close-knitted class" and she immediately left Nagisa with the care of Class 3-5.

Nagisa raised an eyebrow as he scrutinized his class. "So what's going on now?" he asked, skeptically at his class' behavior.

Though they have gotten out of the one Okuda Manami's danger zone, the students of Class 3-5 were relived to be taught by their teal headed homeroom teacher, who happened to be emitting an aura of a deadly viper at their refusal to answer his question.

Eventually though, they will still have to admit to their teacher about their fear of Okuda's definition of 'normal'.

How's that? I tried to make it longer and humorous as possible, and some behind the scenes stuff. So who would you all like for the next chapter? Just a side note, I won't be doing any pairings till the last few chapters, and I won't do Terasaka too. I have plans for those ideas... Hehehehehe...

So...? Please tell me who should I do for the next chapter!

Yours,

BlueSkyBlue,

a.k.a. Otonashi Hayuka