Flashback

Few years ago

A young Kiyama talk to a Old Man about the offer.

Kiyama: Me, a teacher? Is this some kind of joke?

Old Man: No, no. You do have your teaching certificate, right?

Kiyama: Yes?

Old Man: Then nothing will be out of place when you do teach, will it?

Kiyama: But I just earned that along the way.

Old Man: It's not like i'm telling you to leave research. Far from it; I want you to head up an experiment with the backing of the presiding board of dicectors.

Kiyama: Do you really mean it?

Old Man: Those children...

Kiyama look at the children play in the window.

Old Man: They're what we call "Child Errors." For whatever reason, these children were abandoned here in this facility, and have no other family. They are also the subjects of this experiment, as well as the students that you will teach.

Kiyama suprise at the news.

Old Man: In order for the experiment to succeed, we will need to keep detailed growth data on the subject, pay meticulous attention to them, and make necessary adjustments. And, having their teacher handle that will save a lot of trouble, right?

Kiyama: Well, that's probably true...

Later at the Advanced Education Bureau, in the Child Ability Teaching Material Development Center, the Development Center School.

Kiyama write her name on the board to show kids her name.

Kiyama: Um, I am Kiyama Harumi, and I will be your teacher, starting today. It's a pleasure.

Class: It's a pleasure to meet you!

Kiyama: ( I'm gonna have a devil of a time with this.)

Later two boys put bucket of water to prank Kiyama, then Kiyama open the door and water soak her.

Boy1 2: Yay! She fell for it! She fell for it! She fell for it!

Then girl with brown hair name Edasaki scolded the two boys, and girl with black hair wonder if Kiyama alright.

Edasaki: Hey! that mean you know.

Girl1: Teacher, are you okay?

Kiyama: Yeah. It's a clear day today, so it will dry right away once I hang it out.

Kiyama take off her shirt then the other student see, so black girl tell her to put her clothes back, then Edasaki tell the boy's to turn around.

Girl1: Don't change your clothes here!

Edasaki: Boy! Look the other way!

Students: You can't do that, Teacher! You're a woman! Hurry and button up!

Boy1: I-It's not like we wanna see the teacher's flat chest.

Kiyama is shock that boy called her Flat chest.

Kiyama: F-Flat...?

" I hate children. They have no delicacy."

Boy3: Teacher, you're not pretty, right? Do you have boyfriend?

Kiyama: W-What did you...?

Kiyama is stunned at the boy Question.

Boy3: If you want, I'll be your boyfriend.

" They're rude..."

Two boy laughed and waited for Kiyama to open the book

Kiyama: And as you can see... Aaahh

Kiyama open her book and scream to see a centipede in her book

" They play Prank..."

The black hair crys and Kiyama tries to calm her down

Kiyama: What's the matter? If there's something bothering you, tell Teacher...

Black hair girl whinning some more.

" They're not logical..."

Kiyama eating her soup and push the some chuck of food

Edasaki: Ah! You can't be a fussy eater!

Kiyama: Ahh

" They're overly familiar and quickly become attached..."

Later it start to rain and Kiyama see Edasaki on the street soak.

Kiyama: What's wrong, Edasaki?

Edasaki: Oh, Miss Kiyama... haha, I slipped, and fell down.

Kiyama look at the soak clothes.

Kiyama: My apartment is right over there. Would you like to wash up?

Edasaki: You mean it?!

Both of them go to the Apartment, and Edasaki is getting ready to shower.

Edasaki: Yay! A bathtub!

Kiyama: Are you that happy to have a bath?

Edasaki: Mm-hmm! At my facility, we only get two shower a week! Say, can i really get in?

Kiyama: Yeah.

Edasaki: Hooray! I'm gonna brag to everyone else!

Edasaki goes into the Bathtub, meanwhile Kiyama put Edasaki clothes in the washer.

Edasakai: Teacher? Do you think that if I tried, I could make it to Level 5 or 10?

Kiyama: I can't say either way, at your stage. Do you want a high-level when you're older?

Edasaki: Hmm... Of course, I'd like that, but since we're being raised in Japan. I'd like to be of some kind of help to the city just like All Might.

Edasaki finish her bath later she put some clothes that Kiyama give her, then get a cup of coffee as she done, she see Edasaki sleep in her sofa so Kiyama sit next to her.

Kiyama: ( My research time has all disappeared. This really is a pain the neck. I hate children)

Kiyama smiles a little at Edasaki.

The next day, the pull prank at Kiyama like put a board eraser drop on her.

" They're noisy, and have no delicacy."

Then boy came ask Kiyama something.

Boy3: Hey, will you be my girlfriend?

Kiyama: Sure, sure.

" They'e rude..."

Later another boy play with Kiyama lab coat, Kiyama chase the boy to get her lab coat.

" They play pranks..."

Later black hair girl show Kiyama a poorly bad drawing of her.

Kiyama: Th-That's me?

" They're not logical..."

The whole classroom celebrate Kiyama Birthday, but Kiyama is embarrass but she smiles.

Class: Teacher! Happy Birthday! Congratulation, Teacher! How old are you know

Kiyama eat her soup but this time she eating the chuck the girl are proud of her.

Edasaki: Fussy eating is what?

Kiyama: Not allowed right, right?

Girls: Nice going, Teacher.

" Children are..."

Later all the Children are at a Laboratory for the Project, Kiyama is giving a shot to one of the kids.

Kiyama: You'll feel a slight prick.

Doctor1: Anything unusual in these number?

Doctor2: No, no problem here.

Doctor3: We're fine over here, too.

Doctor1: Okay, great.

The Old man smiles creepily at the sight.

Kiyama walk over to Edasaki to talk while she put helmey on her head.

Kiyama: Are you scared?

Edasaki: Not at all! After all, Miss Kiyama, this is your experiment, right? I trust you, Teacher!

Kiyama is proud to her does at her students.

" Do I get to stop playing teacher now?"

But then something goes wrong at the experiment.

Doctor1: Dopamine Levels are dropping!

Doctor2: Anticholinergics are having no effect!

Doctor3: Hypovolemic shock is setting in from the extensive burns! Lactated Ringer's solution! Transfusion, star!

Doctor2: We can't do any more!

Doctor1: Hurry and contact the hospital!

Kiyama is stand their completely shocked.

Oldman: Oh, don't bother, don't bother.

Doctor1: But if we don't do something...

Oldman: Don't go frantic me now, gather all the data you can. I'm ordering you to keep this experiment strictly in-house. This experiment finished without any incident. You folks didn't see anything. Understood?

Doctor1: Y-Yes, sir.

Oldman touch Kiyama shoulder who still shocked.

Oldman: Kiyama, you did well. It's a pity this had to happen to them, but this is hoe scientic progress is made.

Oldman open his open and smiles at project and walk away.

Oldman: You don't have to worry about this accident. I'll be expecting much from you in the future, as well.

Kiyama walk in the room, where their blood of Edasaki, then Kiyama fall in the ground shakin.