The next day, there were four or five more people in the underground lab.

These people are dressed like farmers working in the fields, but their faces have a lot of fierce colors, and their bodies are also very strong, even if they are tied up, their eyes are full of fierce light, with a murderous aura, and their hands are estimated to be stained with a lot of lives.

Shiraishi didn't ask where these people came from, nor did he ask what their original identities were, but they were probably robbers who killed people and stole goods outside.

Now there is a shortage of soldiers outside, and there are countless robbers who burn and loot everywhere, and I have encountered this kind of thing when I went out on a mission before, so I also solved a lot of bandit groups.

However, Shiraishi didn't care where they came from or what they did at the moment, after entering this laboratory, their fate was the same as the guinea pig that Shiraishi used to fiddle with, belonging to the category of experimental objects.

After systematic planning, the natural energy experiment itself is not life-threatening, but everything can not be too absolute, after all, animals were used to experiment, and the structure of animal life is too different from that of humans, so this time the natural energy injection experiment with humans is not ruled out, and the risk of accidents cannot be ruled out.

"Subjects are hard to find, don't run out all at once."

Ruri said a word before leaving.

In order to transport these experimental subjects here, it took her a lot of manpower and material resources, so she specially reminded them.

"Don't worry, don't forget that I'm still a medical ninja, and I can use them over and over again."

Shiraishi also knew that it would not be easy for Ruri to get these test subjects, so he didn't plan to consume them all at once.

Medical ninjutsu can come in handy at this time, as long as you don't die, you can use it repeatedly.

Moreover, Shiraishi believes that the possibility of his research endangering life is still very low, and before conducting human experiments, he has already experimented with the bodies of many animals, and as long as he is careful, basically life is guaranteed.

After Ruri left, Shiraishi entered the official state of work.

The few people who were brought over were sealed with cloths, and they couldn't speak loudly, but could only whine and scream in a low voice, as if they were very dissatisfied with such treatment.

For these robbers who lick blood on the knife edge, there is no fear in their eyes, and they are probably thinking about how to kill Shiraishi and get out of here.

Bai Shi didn't pay attention to these people's low angry screams, and randomly selected one of them and put him on the test bench to lie down, because it was too dishonest, Bai Shi could only inject him with a small half-tube of anesthetic first, making his whole person become groggy and quiet.

"Don't worry, coming here to be my test subject, there is no shortage of food and drink, it is much better than your life of licking blood outside and not knowing when you will suddenly die. And my experiments are largely life-threatening, I can assure you. ”

The mood of these people seemed to have changed, their eyes became evasive, and Shiraishi's tone remained calm throughout.

Even for sustainable use, Shiraishi will try to ensure that the lives of these people continue.

After all, in this troubled world, many people live for a bite to eat.

Fortunately, the people of the big country are estimated to be a luxury even a meal, and they can only nibble on wild vegetables on the side of the road, and maybe they don't even have to nibble on wild vegetables.

In this kind of war years, which do not pay attention to morality and human ethics, Shiraishi has long told himself that life is not worth being happy and death is not worth being sad.

Life is priceless many times because it is worthless.

◎

Two days later.

Shiraishi came out of the underground laboratory, and in the past two days, except for eating and sleeping outside, most of the rest of the time, Shiraishi soaked in the underground laboratory and conducted experiments there.

Although there has been little progress yet, considering that human experiments have only just begun, it will take at least a week of observation before some conclusions can be drawn.

After coming out of the underground laboratory, Shiraishi changed his breath.

It's July now, and the light from the sun is a little scorching, as if people's energy has been sucked away by the hot sun's rays.

What makes Shiraishi always want to complain is that there are electric lights and computers in this world, why is there no air conditioning?

When I went to the room where Ruri was, the coolness inside was very different from the stuffy heat outside.

Because there is a lot of ice in the room, and the electric fan is blowing all the time, the cold air quickly spreads to every corner of the room, causing the same effect as the air conditioner.

Ruri was wearing only a loose blue casual dress at this time, with some scattered scrolls and black leather boxes around her.

"What is this?"

Shiraishi pointed to the scroll and the black leather chest.

"The reward for the previous mission, this is your share. The money totaled 1.2 million taels, and the rest were scrolls about medical knowledge, as well as a few more practical medical ninjutsu. ”

"That's right." Shiraishi sat down, opened one of the scrolls, and said with a smile on his face: "I didn't expect the village to be so generous and reward me with such precious things, these are all important information that I hope to get." I thought they were going to send something away and get the deal done. It seems that the upper echelons of the village are not without a little human touch. ”

"It's because I want to send you away casually that I gave you these things, you idiot, is that all?"

Ruri glanced at the white stone that was complacent there.

“？？？”

"For them, being able to send you away with these things is the most trouble-free and resource-saving."

Hearing Liuli say this, Baishi immediately understood.

"It doesn't matter, although it was a mistake, but these materials and medical ninjutsu really helped me a lot."

"Really? It's good if you're happy. ”

"By the way, what about your reward?"

"After that, I'll go to the Hokage Building, and the upper echelons of the village will approve me to choose a ninjutsu from the Book of Seals at will."

When Liuli said this, her expression was very surprised.

It doesn't seem that the third Hokage has such courage.

As far as she knew, the relationship between the Senju clan and their Uchiha clan had always been stiff, and even if it had eased over the years, it was only a superficial friendship.

When Bai Shi on the side heard this, he suddenly felt that the scroll in his hand was not fragrant.

"Then have you figured out what ninjutsu to choose?"

Shiraishi cleaned up his depressed mood and asked.

Ruri yawned boredly, and lay down on her side, playing with a kunai handle in her hand.

"The elders of the clan respect my own choice, but I don't know what powerful ninjutsu is in the Book of Seals, and I don't lack high-level ninjutsu, so I haven't thought about it for a while. Do you have an idea? ”

Liuli has some understanding of the Book of Seals, but it is not particularly clear how many forbidden arts, mysteries and secret techniques are recorded on it, and what are the types.

"How about choosing soul-related ninjutsu?"

Shiraishi made a suggestion.

"Soul?"

Liuli raised her eyebrows.

"I heard that there is a shinobi in the village named Kato Break, who knows a very mysterious soul type ninjutsu. He seems to be Tsunade-sensei's boyfriend. I think this type of ninjutsu is very helpful for my research. ”

"Got it."

Liuli thought about it, then nodded in agreement.

Anyway, she doesn't have much demand for the ninjutsu on the Book of Seals, and if the soul ninjutsu can really help Shiraishi and let him unlock the secret of the immortal art early, it will also be a very huge improvement for her.