August of the 38th year of Konoha.
One year has passed since the Second Ninja War ended.
Each ninja village has entered a period of relative peace and has begun to recover.
About dozens of miles away from the east gate of Konoha, there is a small mountain.
At the foot of the mountain, underground laboratory.
Bai Yu and Orochimaru were wearing green surgical suits and white gloves, standing on the left and right in front of the operating table.
Lying on the operating table was a young man with his upper body exposed. Surprisingly, the young man's right arm had a pale complexion, and there was a clear difference in skin color starting from the shoulder.
The two of them stared closely at the young man, paying attention to his physical condition and the changes in data on the instrument.
When the scheduled time passed, the two of them breathed a sigh of relief at the same time.
Orochimaru used a scalpel to cut off a small piece of flesh from the young man's arm and handed it to Bai Yu.
Bai Yu put it under the microscope and observed it carefully.
"How is it?!" Orochimaru did not step forward to observe. There was a hint of nervousness in Bai Yu's eyes, obviously he attached great importance to the result.
"The cells have basically completed fusion, and there is no rejection reaction. It's a success!"
There was a hint of excitement in Bai Yu's eyes.
Orochimaru was also a little excited, then calmed down, frowned slightly and said: "The success rate is still too low."
"Indeed." Bai Yu also regained his composure and analyzed: "Counting the number of failed experiments before, the success rate of cell fusion is less than 5%. However, as long as it succeeds once and continues to exclude variables, the success rate will definitely increase. "
"Yes." Orochimaru nodded in agreement, with a smile on his face: "Thanks to you this time!"
"It's mainly thanks to you, Mr. Orochimaru. If this continues, sooner or later we will be able to develop the perfect regeneration technology for severed limbs."
Bai Yu said with a smile.
Orochimaru glanced at the young man lying on the operating table, and said calmly: "Go and rest first."
The young man stepped down from the experimental table and bowed respectfully to Orochimaru and Bai Yu: "Yes, Lord Orochimaru, Lord Bai Yu."
After saying that, he left the laboratory and returned to the prison next door.
"Bai Yu, I'll give you two days off. You should also have a good rest." Orochimaru looked tired, but there was uncontrollable excitement in his eyes.
"Yes." Bai Yu took off his surgical clothes and gloves and left the laboratory.
He didn't advise Orochimaru to rest, because it was of no use.
When he walked out of the laboratory and passed by the prison in the corridor, Bai Yu glanced at the few experimental subjects left inside and frowned slightly. He had been spending a lot recently.
However, everyone inside stayed quietly and there was no commotion.
These are the death row prisoners provided by Genji to Orochimaru for human experiments.
Orochimaru's promise was that as long as he cooperated with him for two rounds of experiments and survived, he would be free.
I have to say that Orochimaru does have a magical charm.
Sometimes, Orochimaru would bring people in from the outside world. Everyone who came here knew that they would be used as experimental subjects, but every one of them was very excited and even more cooperative than a death row prisoner.
The young man just now had successfully survived two rounds of experiments, but he strongly insisted on staying in the laboratory and did not want to leave at all.
Now, the technology to regenerate severed limbs has completed the first stage. Although there may be a second, third, or even a fourth or fifth stage later, this success is very critical.
Among them, the most important thing is the white humanoid biological cells provided by Bai Yu.
Bai Yu obtained the first-generation cells last year and made a major discovery after research.
The cells in the white creature he caught from the Country of Grass were very similar to the first-generation cells.
And when the lower-activity first-generation cells were transplanted into the body of the white creature, the two cells were successfully fused together.
In addition to a decrease in cell activity, there was no phagocytosis.
However, Bai Yu's experimental progress came to a standstill after that.
So he brought the body tissue of the white creature to Orochimaru, and the two conducted research together.
During this period, Orochimaru also made a special trip to the Land of Grass, as if he wanted to see if he could catch another white creature.
Of course, the end result is nothing.
But this part of the body tissue is enough.
After nearly a year of repeated experiments, the two finally successfully completed the cell cultivation and transplantation of white organisms.
The cells of the experimental subject were fused with the cells of the white organism, and then transplanted into the experimental subject.
The young man just now was the only experimental subject to successfully survive the experiment, and the cultivated arm could be used normally.
Although the success rate is less than 5%, everything is difficult at the beginning, and the success of the first step is very critical.
In addition, Bai Yu has another major breakthrough.
In an experiment half a year ago, he accidentally knocked off the petri dish, and the white biological body tissue contained in it fell to the ground. After contacting the ground, a small tree as tall as a person grew, exuding Special energy field.
Bai Yu intercepted some branches of a small tree for research, but found nothing special.
However, he suddenly came up with the idea of using the powder ground from the tree trunks to make the "dark blue potion". Unexpectedly, he actually succeeded.
However, the new version of "Dark Blue Potion" is quite different from the potion described in the original version.
Bai Yu used the test subject provided by Orochimaru to conduct potion experiments. After repeatedly confirming its safety, he took a small dose of "Dark Blue Potion" and found that the effect was amazing.
Since the "active potion" completely expired, Bai Yu's practice speed has slowed down greatly.
Unexpectedly, an accident allowed him to successfully develop a new type of "Dark Blue Potion".
Many major discoveries and inventions in science sometimes occur through play or accident.
This is absolutely true.
If Newton had picked up the apple and ate it instead of starting to think after being hit by an apple, students would probably have to learn much less physics knowledge for a long time.
The efficacy of the new "Dark Blue Potion" is not worse than that described in the original version, on the contrary, it is more effective.
At present, Bai Yu's body has not yet developed drug resistance.
But this may have something to do with the fact that he didn't take enough doses.
Although Kushina's "money power" cleared the way, it was still not a simple matter to collect raw materials and then make medicine.
Even so, in more than half a year, Bai Yu's mental power has improved by leaps and bounds.
Promotion to third-class apprentice is just around the corner.
Coupled with the breakthrough in regeneration technology for severed limbs, it can be said to be a double blessing.
【Spirit: 5.71】
【Physique: 2.01】
[Requirements for promotion to third-class apprentices: 1. Spirit ≥ 6, physique ≥ 2.0, not completed; 2. Powerful radiation of biological cells or tears (3/3), completed]
After taking a glance at his attributes, Bai Yu's footsteps became a little brisker.
