Sinner - Chapter 3
Word Count: 2k+
Warnings: None
Tags: Fluff, SFW, Jungkook-centric, Fantasy AU, School AU, Richboy!Jungkook
Intro, Ch1, Ch2, Ch3 (To be continued)
"Ahhhhh!!!" A loud cry echoed through wooden walls earning an eye roll from Y/n.
Sighing, Y/n slowly walked towards the frightened boy whose eyes were as round as saucers.
"Yes?" She merely questioned.
"Where on earth am I?" He slowly sat up, careful not to touch the bed as if it was drowned with contagious substances, while (not so gracefully) kicking off the blanket with a disgusted expression.
"Don't show me that look," She reprimanded Jungkook as if he was a small child. "you brought this upon yourself. I clearly told you not to get so drunk." She simply spoke while reaching for the blanket on the cold floor to fold it up neatly.
"So?! You had to bring me to this dump?! What even is this place?" He stood up while dusting off his clothes in utter disgust.
"How am I supposed to bring you anywhere else and explain why you're floating unconsciously in thin air while trying to get a room?" She straightened up, shooting an annoyed look at the stupidity of the boy in front of her. "Plus, do you know how heavy you were to carry?! Be grateful at least."
"Whatever, I'm out of here." Jungkook grumbled as he stormed out of the small room, eager to get out of the dirty place.
***
"I can't believe this!" He softly grumbled under his breath, causing Y/n to snicker, finding his actions adorable.
He was currently in school, rummaging the library for a book to help him for his school presentation, while Y/n was humming sweetly on the table, finding his predicament absolutely hilarious.
This all started when he received a text from Taehyung on his way back.
'Dude where are you?! The presentation is due today, it's worth like 35% of your grade!"
Hence, Jungkook was now rushing to finish his presentation for the class that was starting in two hours.
"Yah! Stop laughing and help me!" He desperately called out causing Y/n to erupt into more laughter, annoying Jungkook tremendously.
"Why should I help you? I told you not to go clubbing yesterday." She had a teasing glint in her eyes that tortured Jungkook.
However, Jungkook was desperate. He could not fail this class. So he did what he had to do: he begged.
"Please Y/n, I'll do anything you want. Just help me this one time and I won't bother you again. I'm begging you." He knelt on the ground, bringing his hands together, pleading her desperately.
Y/n merely looked at the boy with a displeased expression. "Anything?"
Jungkook eagerly nodded his head as his last resort.
This urged Y/n to continue, slightly intrigued by his desperation. "Fine, if I help you, you have to stop skipping lessons and actually try in class."
Hearing this disheartened Jungkook. "Serious-"
"Take it or leave it." Y/n declared with finality, causing Jungkook to whine internally.
"Okay, okay! I'll go to class, just please help me with this presentation." He acceded before she could change her mind.
***
"How do you not even have a topic yet?!" Y/n proclaimed in surprise and disbelief.
"I'm sorry! I forgot about the entire thing." Jungkook poorly justified himself.
"Fine, do you even know what the presentation is about?"
"It's on genetic disorders. We just have to present on one condition." He meekly replied.
"Fine, can I have your syllabus?" She extended her hand out for the paper while she opened the computer.
"My what?" Questioned a confused Jungkook.
Sighing deeply, she shook her head. "Never mind, I'll just find it online."
Jungkook watched in amazement as she quickly opened up a document and skimmed through it knowledgeably. For some reason, he found his respect for her increasing and it was not just because she was helping him with his homework.
Y/n turned the computer towards him before continuing, shaking him from his reverie.
"Look here, you're currently here in the course, and following this topic is epigenetics so I propose that you choose a topic that has a strong base in genetics but include some recent findings linking it with epigenetics? How do you feel about that?" She faced him, wanting to know his opinions, only to see his lost expressions.
"Epi- what?"
"Okay, I'm going to start off with some of the basics and then we can brainstorm some of the genetic disorders you might want to do, but we do have to work a bit fast."
Wordlessly, Jungkook nodded as he got out a notebook for a spare piece of paper.
"Genetic disorders are conditions that are caused by faulty genes and/or mutations in the genetic composition of an individual. However, recent studies have shown that there are factors that can turn off or on genes. This is called epigenetics." Y/n slowly explained to him, making sure he wasn't feeling lost.
"Wait, so you can just turn on or off genes?"
"Yes, these factors affect how the genes are expressed. Therefore, even if you have a faulty gene for a genetic condition, if it is not expressed, you wouldn't have the genetic condition. Now, these factors can be inherited from previous generations and it can also be affected by the environment, making it a very promising region of study."
Y/n expertly drew images to help increase his understanding of this topic for Jungkook while she patiently explained it to him.
"I'm not too sure, but I think I understand it." Jungkook unconfidently stated, earning a small smile from Y/n.
"That's okay, since this is extra reading you don't have to be that confident about this. Let's just choose a disorder to present on. "
Y/n started scribbling some conditions, trying to understand what Jungkook was most familiar with.
"What the heck is alopecia and shizofrenia?" Jungkook questioned in bewilderment
"Alopecia is the medical term for baldness and that's schizophrenia. If you're not comfortable with those topics, there are other topics, how about colour blindness? Anemia? Down syndrome? Autism?"
"I know about Autism! My cousin has Autism." Jungkook eagerly voiced out, delighted about knowing about at least one condition.
"Perfect, let's do the presentation on Autism then. How about we get started with a plan and then you can start doing some research?"
Jungkook hummed in agreement as he shifted his chair closer to see the paper in which Y/n was writing on clearly. Resting his arm on the back of her chair, he leaned closer.
"I was thinking we could start with some basic information about Autism, the symptoms, a case study and it's background before moving onto the genetics aspect. Do you have anything you want to do?" She questioned lifting her head abruptly to face Jungkook.
However, the close proximity startled her, causing her to widen her eyes in shock. Noticing this, Jungkook sheepishly moved back, muttering a soft "sorry" before continuing. "Not really, I think the teacher really likes studies, so maybe we could include that?"
"I'm surprised you even know your teacher." Y/n joked, forcing Jungkook to roll his eyes at the statement.
"I've already agreed to go to class so stop nagging me."
"Fine, but don't you dare go back on your word." She emphasised before returning her attention back to the presentation. "Regarding the studies, I know about some twin studies and I think I remember a study on the correlation between DTT levels and Autism rates to emphasise that even though autism is fairly genetic, some environmental factors can affect autism."
"Isn't that enough?" Jungkook questioned, already exhausted by even thinking about all the reading he has to do.
"Come on, we haven't even got to the main part. I'll help you get through some of the reading so don't worry." Y/n insisted, sincerely wanting him to do a good job.
"Fine," He exasperatedly exclaimed, slouching on the wooden table in boredom. "What else is there to do?"
"Just expand on some genes that are already associated with Autism like the TBR1 gene and the ANDP gene. I assure you, read on like 6 genes and their chromosomal location and you'll definitely get an A+."
"Six?! I can't do that much!" Jungkook whined.
"Fine, five?"
"Three."
"4 it is." Y/n ended the negotiation, earning a sulk from Jungkook.
"Then you can just link this with epigenetics and determine whether any therapies like PECS can help decrease the severity of Autism to finish it off."
"Thank god it's ending."
"Oi, I'm helping you get a good grade!"
"Yeah, and I'm regretting asking you for help."
"I was not the one who was begging on his knees."
At Y/n's words, Jungkook cleared his throat with an embarrassed look.
"Well desperate times call for desperate actions."
At his sheepish look and words, Y/n burst into laughter, absolutely enjoying torturing the poor boy.
***
"DYRK1A gene has a chromosomal location of 21q22.13 and is essential in the process of producing an enzyme that is used in the development of the nervous system as it is involved in the formation and maturation of dendritic spines from dendrites. Additionally, I wanted to know more about how epigenetics can affect ASD. Therefore, here is a study on monozygotic twins in which one twin is a part of the autistic spectrum while the other twin isn't. Although this is rare, it highlights the importance of epigenetic factors like DNA methylation on Autism."
Jungkook finished off his presentation earning a huge thumbs up and an enormous smile from Y/n as she watched him from the side of the classroom. He softly smiled back, pleasantly surprised at himself too.
However, the classroom was left in a state of shock - not only did they not know Jungkook was even in this class, but they were also speechless at the detailed presentation he had just given. The teacher was left stupefied, too speechless to even comprehend this miracle.
As Jungkook awkwardly stared back at the class, the silence was interrupted by a slow yet sarcastic clap from the teacher who just recovered from her shock.
"Wow Mr. Jeon," She walked up to Jungkook with a conceited smile. "Did you think if you plagiarised someone else's work, you would just get away with it? At least make it more believable."
Silence loomed over the class at the teacher's words.
Jungkook scoffed in disbelief. "I'm sorry? You think I copied someone else's work?"
"I don't think, I know. There's no way someone like you produced that presentation."
"Someone like me? What's that supposed to mean?"
"I mean, someone who is lazy and dumb, someone who doesn't have the intelligence to produce something worthy."
"Wha-"
"I don't have time to waste. Follow me to the Headmistress' office."
Jungkook was annoyed yet confused. He didn't know what was even going on. As he exited the classroom, Y/n quickly followed behind him with a worried expression.
As she caught up with him, she softly reached out for his sleeve to stop him. "What is going on?"
"That stupid teacher thinks I used someone else's work. Wait till I show that teacher ho-" Jungkook's angry words were soon interrupted.
"Jungkook," Y/n softly called out, pausing his outrage for a second. "Getting angry won't help your case. Just remember everything you read, you did everything for this presentation. All I did was give you the sources, so prove to the Headmistress that the presentation was your work, okay?
Jungkook remained quiet for a while before softly muttering, "Thanks."
***
"Jungkook, this is a very serious accusation against you, especially for such an important presentation. We need to make sure that this is your work." The headmistress removed her glasses as she focused on Jungkook, slightly worried about the situation.
"I have cited all my references, and you have checked the internet. What more is needed?"
"Jungkook, your teacher has the right to feel suspicious based on your past record. She'll just ask you a few questions based on your presentation and if you can answer that, then it will be certain that this presentation is your work."
"Fine, go ahead."
The teacher obnoxiously cleared her throat before speaking. "You had mentioned a de novo mutation, what is that?"
"A de novo mutation is a mutation in the genetic code for the first time in the family, showing that it is not inherited and could be caused by polymorphisms."
"What is encephalopathy?" The teacher further questioned, a little taken back at the confidence in Jungkook's answers.
"It means damage to the brain that can cause confusion and a lack of intellectual abilities. It can be found in individuals with Autism.
"What disorders are under the ASD spectrum?"
"It includes classic autism, pervasive developmental disorder, and Asperger's syndrome." Jungkook's answers were quick and fluent, not at all affected by the current circumstances.
"What is the study conducted by Alan Brown at the University of Columbia?"
"It is a study conducted in Finland to identify is the levels of exposure of mothers to DTT can affect the rates of Autism. Although they found a positive correlation, they believe that the results should be repeated at least three times before they can confidently state the association between the two factors."
"What is epigenetics?"
"Epigenetics is the idea that there are factors like DNA methylation and acetylation that can determine whether or not a gene is expressed. This can play a role in the determination of whether the individual has a genetic disorder or not."
"What is Chromatin remodeling?"
"Chromatin remodeling is the changing of the structure of the chromatin which is a sequence of DNA and proteins which packs the DNA in chromosomes. When DNA is tightly packed, gene expression is lower than when DNA is loosely packed."
"What-"
"That is enough Mrs. Cha." The headmistress halted the teacher's interrogations.
"B-but I haven't sh-"
"It is clear to me that Mr. Jeon is well-read about this topic and I don't believe that he has plagiarised anyone's work. I think you can give him the grade he deserves."
At the definite tone of the headmistress, the teacher had no other option but to oblige the orders, internally annoyed at the fact that Jungkook got away.
"You may now go back to class."
As the teacher turned back to the exit, Jungkook's words stopped her in her place.
"Headmistress, I still have a complaint…" Jungkook paused to smirk sinisterly at the teacher while the Headmistress raised an eyebrow at Jungkook's words. "I understand that the teacher may have suspicions regarding my work but I don't believe that she has the right to verbally demean me in front of the whole class."
"Could you expand on that, Jungkook?"
"Well, Mrs. Cha had associated me with adjectives like dumb, stupid, lazy, and intellectually lacking. I was deeply offended and I feel extremely wronged. The whole class was there to witness it too."
"Mrs. Cha, is what I'm hearing true?" The headmistress questioned sharply, causing the teacher to gulp in fear.
"Y-yes, but in my defense, h-"
"Jungkook, you may now return back to class. I need to privately discuss this with your teacher."
Jungkook flashed a victorious smirk at the teacher before leaving the room, a cocky expression worn on his face as he stuffed his hands arrogantly in his pockets while walking away for not only had he proven his innocence but had also ruined the teacher.
Intro, Ch1, Ch2, Ch3 (To be continued)










