Ayakashi Yakumo Koizumi - Tumblr Posts

Please do NOT proceed if you haven't read Night Book 1 or any of the Book 2's (preferably Yakumo's as a major spoiler for his story is revealed). This... thing contains major spoilers, and I don't want to be held liable for ruining the story. But I mean, I haven't even read all of the Book 2's, let alone Yakumo's 💀 Proceed if you wish to spoil all of this for yourself. Otherwise, bookmark this or smth and read it afterwards.

It starts under the cut btw. I cannot describe how much time and big brain power I had to put into this 💀

How to Create Youjin Scientifically (DO NOT TRY THIS AT HOME)

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Came as a surprise? Me too 💀

(I didn't read over this so I apologise for any spelling mistakes)

Let's just do this slowly.

What we know:

*spoiler for Yakumo is here somewhere*

- Youjin behaviour: violence and aggression, unawareness of their behaviour, increase in physical strength, incoherent speech.

- Experiment process: Capture Ayakashi and rob them of their power using "black sand" bullets, capture humans and lock them up, remove cells from the Ayakashi, preserve cells (I'm assuming), surgically transplant cells into human, you got yourself a Youjin.

- Failed prototypes are discarded but not killed.

- An unknown drug is used in the experiments, and it is vital to the experiments (they cannot commence without the drug).

Update: It was revealed that the drug is Yakumo's blood and it turns people immortal, which is why it's so important.

Right, so. Ayakashi and the vampire are mythical creatures, so how would we be able to do this irl? We'll start at the core. The drug.

The Drug

The behaviour Youjin display are similar to the effects of opioids. Chronic exposure to opioids can cause more aggressive behaviour. Opioids can also cause psychosis, which leads to (only mentioning the relevant symptoms) incoherent language and unawareness of behaviour. Psychosis is also associated with aggressiveness, but it is not in every case. So opioids are made of the poppy plant eg. morphine. Ya know what else is made of poppy seeds? ✨ o p i u m ✨ And we know tons of that was lying around *cough cough* Kagemaru from Ginnojo's book 2 *cough cough* that one event with Ginnojo *cough cough* that one event with Toichiro *cough cough*.

But what about the increase in physical strength?

Anabolic steriods.

Yes, I know they were only synthesised in the 1930s, but we're not talking timelines here. Ignore time in all of this 💀

So, in real life, the drug would most likely be two drugs, those two being an opioid and anabolic steroids.

As a friend said, the "wonder drug" down, what next? Transferring cells ofc.

Now, we obviously don't have Ayakashi, so we will have to use animals. But is it possible?

Transferring of Cells: Is It Possible?

Short answer: Yes.

It is entirely possible to transfer the cells of an animal into a human, it just won't do anything. The human body will reject the cells and nothing will happen.

So, what's next? The hard part is next, that's what. It's surgery time baby.

"But what about not being able to transfer the cells? 🙄" stfu Linda (no offense to any Lindas that are reading this, I am sure you are wonderful ppl).

Let me explain:

(Once again, we are taking time and throwing it out the window. Or would this whole thing make more sense in a modern au? Either way, time is non-existent right now.)

Transferring of Cells: The Surgery

We have to understand that a physically-possible Youjin (why am I calling it that) wouldn't be immortal or carry extraordinary abilities. It would probably just have increased strength, no genetic diseases and no genetic mutations.

That being said...

We can't combine the DNA of animals and humans, but we CAN genetically modify the DNA of a human. Although, that is only being used to fix genetic mutations, not to create new genes.

I mean, you COULD create a new gene by mixing DNA strands together to create a synthetic gene. But you'll need a DNA molecule 7 000 nucleotides long for it to be large enough to make an entire gene. It is technically possible, but it's gonna take forever.

Anyways, genetically modifying humans has been around for a while. HOWEVER, it can only be done to embryos. There also isn't a 100% chance that cell rejection won't happen. If we're talking about what modifications will be done to a physically-possible Youjin (I need to rename them), then it will remove mutations. These being diseases, mainly. This doesn't exactly make the human immune to every disease, just the genetic ones. So the human can still contract other diseases, unfortunately.

Current society believes that these modifications excludes these genetically modified humans from what makes a human human. That being their differences. I don't exactly agree with that, but it's society. What can I do against society?

KEY THING TO NOTE WHICH I SHOULD HAVE SAID EARLIER: From all the articles I found (because yes, I did have to do some research), no genetically modified human has gone past the embryo stage. With technology constantly advancing, in the future, it may be possible to genetically grow a human (oh my goodness ew that sounds so wrong 💀) It is speculated that the human would not resemble its mother and will live up to 30 years, probably. All speculation. In this case though, we're going to pretend that it IS possible to develop the embryo into a baby, and for the baby to grow into an adult that lives up to the average human death age (why didn't I say life expectancy) of 72 years.

So, to sum it all up, an embryo would be modified to have no mutations (genetic diseases) in place of transferring animals cells because that will just lead to cell rejection.

Okay, cell transfer down. What next? The differences between ARR Youjin and my Youjin (renamed them, but now I feel bad for calling them mine. Heck, I'm the OP. Technically they're mine 💀)

The Differences

I'm just gonna tabulate it somehow.

ARR Youjin:

- The drug is Yakumo's blood and turns the human immortal.

- The human's cells are mixed with Ayakashi cells.

- Youjin behaviour is due to the experiments.

- Youjin are "programmed" to follow a specific order.

My Youjin (still feel weird calling them mine 💀):

- The drug is two drugs: an opioid and anabolic steroids.

- Human DNA is genetically modified to remove mutations.

- Youjin are not immortal.

- Youjin behaviour is due to drug overdose.

- Youjin are "non-programmable". A list of behavioural outcomes can exist, but the probability cannot be determined.

And finally, what you probably clicked here for, the actual process.

How to Create Youjin

1. Harvest a human embryo.

2. Genetically modify the embryo to remove all mutations.

3. Let the thing develop into a baby.

4. Raise the baby under laboratory conditions.

5. Once the child reaches the age of twelve, start giving it a daily dose of an opioid (whichever you want) and anabolic steroids. The steroids dosage should be less than the opioid. These doses should be enough for the child, matching with the height and weight of the child.

6. Gradually increase the doses over the years, until the child is twenty years old.

7. At this point, the dosage of opioids should increase tremendously, and the dosage of steroids should lessen. Overtime, the steriod would have given the adult enough strength, but the opioids needs to increase to increase the chance of developing psychosis.

8. By the mid-30s, if the adult has not developed psychosis, it is a failed prototype and should be discarded (admitted into a psych hospital). If the adult has developed psychosis and the effects are showing clearly, it is now a Youjin. Its behaviour should be monitored at all times, and it should only be used when necessary.

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And there you have it. How to create a Youjin. I made Youjin omfl- 💀 I don't even think you can call them Youjin anymore because mine aren't that similar to ARR's.

Well anyways, this took two hours and I'm proud of it, somehow. Sorry if it's long, I think I got carried away with explanations. I hope you enjoyed reading this anyway. AND DO NOT TRY IT AT HOME. IT IS ILLEGAL.

I feel like I might get arrested for this, idk why 💀 My back is rlly sore rn, so imma go. I'll see yall tomorrow <3

F**k I got a test tomorrow and I didn't study, I was busy making Youjins shi-

SO I WAS JUST PLAYING YAKUMO'S ROMANCE PATROL AND UHHH-

WHAT.

Here's some cool pictures 😎 @shonenkun309

I relate to all of these 😭😭

AND KAGEMARU-

Here's some cool pictures 😎 @shonenkun309

THE MEMES ARE BACK 🕺💃

And Kagemaru, same 😔

I JUST DISCOVERED TUMBLR FILTERS

PLSSSSS 💀💀💀

Finished Yakumo's route. Dunno what to do now 😭

Throwback to the time Yakumo revealed his hair is healthier than mine and I use 7 different hair treatments and he uses freaking mud or something.

LOOK HOW CUTE AND PRECIOUS HE WAS WHEN HE WAS LITTLEEEEEE ❤❤❤❤

wtf happened when he grew up 😐

Throwback to Yakumo's route bc I decided to replay it

We stan a self-aware king 😍

Why am I only just now realising that Yakumo and Futaba is just Hades and Persephone? Man straight kidnapped her during his route because he was so obsessed with her, like how bestie boo edgelord kidnapped Persephone. And Yakumo kept her in his basement which is basically the underworld if you think about it. Also the whole dark/light dyanamic. Also Yakumo is Greek so I wouldn't be surprised if his route had some inspiration from Greek mythology.