After another nearly three hours of busy work, they finally stopped working.
Now, dawn was beginning to break. The students who hadn't rested all night were extremely tired, but also extremely excited.
The reason was the twenty-five test tubes - the kind used for drawing and testing blood - placed on a tray.
They contained not blood, but milky white liquid.
This stuff had restored a little girl to normal, and she was still fine even now, actually quite energetic.
Even that roughly four-centimeter cut on her hand had now completely disappeared, healed without anyone being able to tell there had been a wound just hours ago.
Then, the first of these twenty-five doses was picked up and used without any discussion - taken without ceremony.
No one had any objections, because the person who took it was Ejie.
Without hesitation, he used the first tube, swallowing it down.
No, it felt like before it even reached his stomach, this somewhat viscous milky white liquid had already permeated and dispersed into his actual body interior.
Because the throat passage couldn't really be called truly internal to the body.
Immediately, he sensed abnormalities in his chest wound and severed arm - they were itching, especially the severed arm. It felt like something was trying to emerge from the wound, but was just a bit short, lacking sufficient energy.
At his severed arm, having removed the metal gauntlet, he unhesitatingly cut a fresh, clean wound there.
This way, there was visibly growing flesh, but it still wasn't enough!
He picked up another bottle and used it!
Still feeling it wasn't enough, he used another bottle!
The people watching beside him were all staring eagerly.
Finally, after using five doses, he relaxed - this way everyone would have a share.
But the current phenomenon was even more surprising.
"Re-regeneration!"
"Even bones can grow back!"
"This medicine is too incredible!"
Some couldn't help exclaiming.
Shizuka Marikawa, who was developing toward the medical profession, being a doctor, knew even better how outrageous this kind of regeneration was.
Soon, some people didn't dare to watch anymore - this growing scene was actually quite bloody and terrifying.
Shizuka Marikawa also watched with sweat flowing down her face, because this feeling could also be described as savage growth, and the pain generated would absolutely be unprecedented.
So if anyone else really needed to take this thing for limb regeneration, it would be best to have them in an unconscious, anesthetized state.
Otherwise, they really couldn't bear it - dying from pain wasn't impossible, but would actually happen.
Like this, after ten minutes, an arm with almost no sense of incongruity was restored.
The difference was that this arm currently looked very fair and tender - probably even more delicate and smooth than Shizuka's hands.
"The rest of you can use them."
With his declaration falling, everyone became excited.
"Be quiet, line up, take them one by one!"
Saya Takagi immediately shouted, making those who were getting too excited and about to rush forward all stop and quickly line up.
Originally there were seventeen people including him, plus the father and daughter who came, making nineteen people.
However, little Alice had already used the initial dose, which wasn't counted among the current twenty-five. So logically eighteen people should each get one dose, with seven remaining.
But he alone had used five doses - four more than others. After deducting everyone else's one dose each, there were three extra doses left, which would be kept by Teacher Shizuka.
"Um, should we drink it now?"
"Or wait until we're bitten and infected to drink it?"
"Teacher Shizuka, what do you think?"
Some were uncertain - if they drank it in advance and then got bitten, would the medicine's effect be lost?
Saya Takagi didn't hesitate so much and used hers immediately upon getting it.
She believed what it said above - that it would provide lifelong immunity from diseases from before 15K.
Even if it was a bit exaggerated, it wouldn't just last a few days or months. Anyway, they didn't need to worry about infection from the living dead virus in the short term.
So with everything mostly finished, she could finally think properly about some of the jaw-dropping information contained in the panacea.
First, she had seen advertising copy mentioning that the company listed several major sales outlets for this panacea that even civilians could afford to buy.
It mentioned various star systems and planets - this was incredible.
Saya Takagi hadn't heard of some star systems, but she had heard of individual stellar systems - like Proxima Centauri, the closest star system to the solar system at 4.25 light years away.
This meant that in the era this hard drive belonged to, humanity had already entered the age of space travel.
The range definitely exceeded 4.25 light years.
As for the word "Terra," that was another name for Earth.
15K was the era designation, equivalent to 15,000 AD - 13,000 years from now in the future.
2K Terra referred to Earth in roughly this era.
The manual mentioned diseases from before 15K, and it seemed there were more advanced medicines that could treat more troublesome diseases from later eras.
This indicated he came from an era over 13,000 years in the future.
This was even more distant and jaw-dropping than the future where the T-800 from "Terminator" existed.
As for the more advanced medicine, that should be called the universal cure. She had heard him mention this term when they were at school.
If panacea could achieve this level, it was unimaginable what effects the more advanced universal cure would have.
It probably wasn't just treatment, but might also provide enhancement, develop potential, grant superpowers - such miraculous medicine.
Right, why did this hard drive specifically respond to her with various questions and teaching?
This was because this "hard drive" hardware itself belonged to another company, not the pharmaceutical company.
It was equivalent to current computer manufacturers making computers and then supplying them to pharmaceutical companies, with the hardware also containing advertising programs from the computer manufacturer.
Yes, what tested her was an advertising program, also a talent exploration program.
If one could pass the program's trials, not only would the contents be directly unlocked, but they would also receive an invitation from this company and opportunities for further development.
If refused, they would inform the pharmaceutical company that their data had been stolen and threaten imprisonment.
Really quite outrageous - this computer company was truly unethical.
Unfortunately, in this era, this threat was useless since it couldn't connect to the interstellar network of that era.
So even if her coordinates were immediately transmitted, there were no law enforcement agencies from that era to arrest her.
So she, a 2K era high school student, was considered a genius even in the 15K era?
That wasn't quite right - their judgment was based on the cultural level of the planet, providing targeted trials accordingly.
Without needing to connect online or read network data to understand this era, it could directly scan the surrounding environment through connected devices and estimate technological levels.
The reason Saya Takagi knew they were testing her based on contemporary standards was through speculation from the evaluations they provided.
Originally, it seemed they intended to test her with 15K era knowledge, but unfortunately couldn't connect online, so it automatically integrated knowledge from the current environment to test her.
Speaking of which, since it was a product, there should be a production date, right? That could be used to determine the specific production era of the "hard drive," and his era should be similar.
But that hard drive's surface was smooth - just that interface, nothing else.
The internal programs also didn't mention any time.
Wait, that custom search might be able to test the approximate era!
However, the hard drive had now been reclaimed by that guy, so she couldn't check now.
So now they should let everyone who had worked all night without sleep rest, then leave here immediately at noon.
However, Saya Takagi didn't feel tired - whether it was because using the panacea made her energetic, or because she was increasingly curious about the man who brought the "hard drive" to this era, she couldn't sleep.
What level had humanity developed to in the 15K era?
And what had happened that made him return to the 2K era to change this disaster?
Such changes would cause massive alterations to the future - after all, this spanned at least 13,000 years of time. The future would be completely unrecognizable.
The original era's version of him would disappear due to these changes.
But if he disappeared, then he wouldn't exist to travel through time to the past to change history.
This presented the classic problem - the grandfather paradox.
...
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