Konoha: Rebooting Life of a Medical Ninja

There is another question, Yi Zhicheng still has a little doubt in his heart.

"Do you eat people?"

"Ah?" Kong Kongyi was obviously taken aback.

"The pirates said that you can eat people, and eat people who are useless and dying." Yi Zhicheng said bluntly.

"Stinky pirates are talking nonsense!" Kong Kongyi flushed with anger, "We don't know how to eat people, it's obviously them..."

"Even if there are very few fish around this island, there is nothing to eat on the shore. We can only go to the reef to dig seaweed and shells to eat..."

"No matter how little food we have, we believe that as long as we grow the land, we can eat delicious food."

"On the contrary, those pirates... They ate their own people!"

"That's why we took all the dying people away and threw them into the sea for burial, so we didn't eat people!"

"People are more likely to listen to people who have experienced the same experience as themselves...I'm sorry, as expected, you can't believe a word of pirates." Yi Zhicheng could only apologize. To be honest, he really believed it at the beginning.

Looking at Kong Kongyi's piranha-like shape, it can indeed be equated with cannibalism.

"No... Master Cheng doesn't need to do this, I'm not angry with Master Cheng..." Kong Kongyi hurriedly waved his hands.

"What's the next place?" Yi Zhicheng looked closer and closer to the mountain.

"It's a hot spring! It's the source of our fresh water, and sometimes we take a bath. There is also a field of flowers we planted next to it, which grows better than orange trees..."

"Wait..." Yi Zhicheng interrupted suddenly: "Don't you guys have a blast furnace for making iron?"

"Iron smelting...? Why do we need iron smelting? Although we have a lot of rusty swords, there are still gold and silver..." Kong Kongyi was a little confused.

"...I need to smelt iron." Yi Zhicheng said seriously.

"Is it to break our curse?"

"That's right..."

"Okay! I'll get someone to prepare iron smelting!" Kong Kongyi nodded vigorously.

"Wait, do you know how to make iron?"

"I know, melt the iron ore and pour it into a mold to make an iron tool. A pirate said that!" Kong Kongyi nodded seriously.

"...fire first, we need a lot of charcoal! High quality charcoal, is there any coal on the island?"

"I know charcoal! We have a lot of broken ships that can be burned into charcoal!"

"Forget it..." Yi Zhicheng suddenly felt that explaining these things to them was playing the piano against the cow: "Take me to the hot spring."

"Isn't it better to go to the hot spring in the end?"

However, when Yi Zhicheng arrived at the smoky hot spring, he didn't have the slightest interest in the spring water with a suitable temperature, and instead touched the stones beside him.

"Stone... Master Cheng is looking for bugs under the stone?" Kong Kongyi didn't know why, so he helped Yi Zhicheng lift a stone.

"Sulfur is a stone with a pungent smell. It may be yellow, or it may be the same as ordinary stones. There are usually found next to hot springs..." Yi Zhicheng touched the stone and smelled his fingers.

"It's this one!" Kong Kongyi moved a pale yellow stone.

Yi Zhicheng took out his saber and smashed it into pieces, revealing the yellow stones inside. He sniffed a piece and smiled slightly, "It's sulfur, that's right!"

"This stone is smelly and hard, what's the use?" Kong Kongyi asked curiously.

"It's gunpowder... It's too extravagant to use a detonating talisman as a primer. Gunpowder is relatively more economical. One nitrate, two sulphur, and three charcoals. For charcoal, you can just burn it with boat wood. It's more troublesome to use nitrate... You can go to the pirates. Take a look at the toilet." Yi Zhicheng said to himself, then looked at Kong Kongyi: "Show me around."

Since this volcano can still emit residual heat, I don't know if there is a gap, maybe it can emit some gas or the like.

"You can't go there anymore, there is a place over there, and people will die after a while." Kong Kongyi explained worriedly.

"Will you die in the past? Just go there!" Yi Zhicheng's eyes brightened.

Kong Kongyi was confused: "???"

…

The invisible gas on the volcano can kill people. Generally speaking, it is either gas or hydrogen sulfide, but it happens that Yi Zhicheng's scalpel is made of silver. Throw it ten meters and pick it up before throwing it out. If you encounter sulfide, you will be killed. will turn black.

As for Gas, there is no need to be so careful, the speed of death is not so fast, just retreat as soon as you feel unwell.

"We can't go any further. People who go there will die soon! Look there!" Kong Kongyi pointed to several shriveled pirate corpses in the distance.

He threw the silver scalpel over there, but it didn't turn black, and asked the pirates that they didn't die instantly, which made Yi Zhicheng more sure that the poisonous gas here was gas.

"Hide, be careful." Yi Zhicheng pulled Kong Kongyi to hide behind a boulder, picked up a stone wrapped in a detonating talisman and threw it out.

"It's this thing that almost killed me!" Kong Kongyi turned pale with fright when he saw the detonating talisman.

The voice did not fall.

boom! !

The whole ground trembled violently, a huge fire ball rose up, and endless thick smoke accompanied by crackling gravel flew over the head, and the two of them were instantly engulfed by thick smoke and dust.

At this moment, Yi Zhicheng almost thought he had ignited the entire volcano.

It wasn't until more than ten minutes later that the vibration disappeared and the white smoke dissipated. Yi Zhicheng finally took a breath, only to find that Kong Kongyi was actually lying on top of him, protecting him with the scales all over his body.

"Are you okay?" Yi Zhicheng helped Kong Kongyi up.

"Ah, it's okay... I'm fine... Our defense is very good..." Kong Kongyi blushed slightly.

"It's fine..."

The gray-faced two finally wiped off the ashes on their faces, but they saw that there was a crack on the flat ground just now, and a red-orange flame burst out through the gap.

"Fire... the ground is on fire!" Kong Kongyi was full of surprise.

"The young volcano is really powerful... It's like a natural blast furnace for making iron." Yi Zhicheng smiled.

…

In the following week, Yi Zhicheng was almost completely immersed in the craft of making artillery.

Charcoal and sulfur are done, the next step is nitrate.

Fortunately, the group of pirate prisoners was forced by the mermaids to go to a cave to solve them when they usually went to the toilet. Countless filth had accumulated over the past ten years.

Yi Zhicheng dared to enter the stinky cave because his nose had deteriorated, but Kong Kongyi was unwilling to enter it anyway.

It has been eroded by excrement all year round, and a dirty and smelly pool was actually corroded in the cave, with white ground frost growing beside it. If there is no accident, this is potassium nitrate called "ground frost".

Obviously this amount of ground frost is not enough to make a lot of gunpowder, this corroded "water pool" is the treasure...

"Nitric Acid"

Nitrogen-containing substances in feces and urine will decompose to produce ammonia. Under the action of nitrifying bacteria, ammonia will react with oxygen in the air over a long period of time to form nitric acid.

Naturally, Yi Zhicheng couldn't do the nitric acid scooping up by himself, and there was a group of pirates who took him captive.

Yi Zhicheng had already gone to the hot spring with a stench all over his body.

That's how they scooped up several pirates.

It is much easier to make potassium nitrate with nitric acid.

Mix with plant ash and stir thoroughly to replace potassium nitrate, which is earth-made fire nitrate.

The whole process also made Yi Zhicheng sigh. He is obviously a doctor, and he has to study the human body for a while, and he has to do alchemy for a while. Thanks to the nine-year compulsory education, he has become a good young man with all abilities.

Yi Zhicheng, who possessed the three elements of gunpowder, immediately began to experiment with gunpowder.

If you are not sure about the ratio, try a few more times to get the best result.

After trying for a day, I finally determined that the best combination ratio of gunpowder is 10% sulfur, 15% charcoal, and 75% nitrate!

A not-so-huge fireball ignited from the stone pot, and the laughing Gu Ming leaned forward and backward:

"This... this is what you have been doing for so many days? When I was five years old, I vomited a fireball bigger than you! Hahaha!"

"Oh, let's add some more of this!" Yi Zhicheng took out a sugar bowl.

Cane sugar has always been the most important trade commodity exported by the Kingdom of Water. The pirates also robbed several ships, but after so many years, they still haven't finished eating it.

"Are you cooking or making medicine? It's urine, plant ash, and sugar..." Gu Ming couldn't understand it at all.

"One nitrate, two sulphur, three charcoal, add some sugar to make Ivan..." Yi Zhicheng covered his ears and threw a flame into the stone pot.

boom!

A group of flames comparable to the fireball technique rose up, and a group of people were stunned.

"Hmm... This is as powerful as the fireball technique I had when I was ten years old, and then what? Is it useful? Is it hand cramps in the hand seal or the detonating talisman?" Gu Ming shook his head and still didn't understand.

Yi Zhicheng ignored him, but went to the volcano to see how the ironmaking blast furnace was doing.

With free volcanoes and earth fires, it is only a matter of minutes to build an earthen blast furnace. After all, they are ninjas, and there are not many people who know how to escape from earth. There are still two on the Fuxing.

According to Yi Zhicheng's request, after more than a dozen failures, the two of them have been able to condense a suitable iron-making blast furnace.

There is no need to start forging from iron ore.

The swords, iron chains, and anchors on the pirate ship are all ready-made good iron. They are directly smashed and thrown into the blast furnace. After a long time, the molten iron will flow out. Adding some shell powder will increase the strength of the iron. quality.

The next step is to make the cannon. Yi Zhicheng used the simplest clay casting method to let the two ninjas condense to form the mold of the cannon. There is no requirement for the outer diameter. The inner diameter must be within 1mm, and the barrel must be completely straight , so that it is convenient to uniformly produce shells and improve the accuracy of shell launching.

It's a pity that the two earth-dun ninjas are not of this material. After a few tries, they are all big and small. Yi Zhicheng personally did it, cut two of them, and then healed them with the recovery technique to gain their experience in releasing the earth-dun .

Under his powerful and fine chakra control, qualified artillery molds were condensed one after another, each size was exactly the same, and the five bodies that the two earth escape ninjas admired fell to the ground.

The next step is to pour molten iron into the clay mold, wait for a day to cool naturally, and knock off the mud shell to form a semi-finished gun barrel with pitch-black gravel.

Have a cheap pirate slave smooth out the rough inside of the barrel with rough sea gravel and the basic barrel is done.

Looking at the pitch-black hollow tube, Gu Ming touched it obscenely, rubbing his hands and showing a malicious smile.

He didn't say anything, as if he said something again.

Yi Zhicheng ignored him, and continued to think of ways to make cannonballs. The hollow iron cannonballs needed to be stuffed with detonating symbols in the middle, and the size had to be the same, which made it much more difficult.

After thinking for a long time, he decided to use a clay mold to make two hemispheres, and then weld them together with molten iron, leaving a small opening that can be inserted into the detonating talisman. There are no internal requirements, and the rough parts on the outside should be smoothed by pirate slaves. .

In this way, the first artillery prototype of Ninja World appeared.

The test firing stage attracted countless people to watch. After all, Yi Zhicheng has been doing drastic work for a week, and no one knows what he is doing.

The pitch-black cannon has been fixed on the stand with wheels, without any appearance of color.

Fill a bag of gunpowder mixed with sugar, and insert the fuze through the small hole drilled from the barrel.

Only then did Yi Zhicheng start the most important part, the hollow shell, stuffed with the detonating symbol, and set a delay of 20 seconds, that is, within 20 seconds, the shell must be fired, otherwise it will explode.

Until the launch, Gu Ming still folded his arms with a look of indifference.

"Since you are so pessimistic, let you be the target. Don't worry, as long as your brains don't explode on the spot, I can save you." Yi Zhicheng spread his hands.

"...that... Actually, I'm still very optimistic about you..." Gu Ming's eyes drifted.

"If you're afraid, there's an iron pan over there to support it." Yi Zhicheng pointed to the scrap iron material next to him.

"Be a target, be a target!" A group of crew members also booed.

Gu Ming gritted his teeth: "Bah... I don't believe it anymore, can you still have the power of A-level ninjutsu?"

He really walked three hundred meters away and became a target.

Yi Zhicheng knew that this shoddy artillery had no aim, and its power came from the fragments of the explosion. He just took a little aim, activated the detonator, inserted the shell into the barrel, and ignited the fuze.

With a bang, thick smoke filled the air, and pitch-black shells burst out, drawing a clearly visible black arc in the air, and shooting straight towards Gu Ming.

"Just this speed, just this accuracy?" Gu Ming spread his hands, and he didn't even need to dodge, the shell hit him on the rock wall ten meters away.

"Sure enough, there is no accuracy at all." Yi Zhicheng expected it.

"Do you need another shot? I can stand here and let you bombard me for a whole day? Hahaha!" Gu Ming looked up to the sky and laughed.

However the next second...

boom! !

The detonating symbol exploded instantly in the small space of the shell. The range of the shock wave was more than ten meters, and the flames mixed with small steel fragments shot around indiscriminately.

Gu Ming had a new injury on his face, and he walked over with a stiff voice, and brushed off the dust on his face: "It's not very powerful, I didn't pay attention this time, and I will definitely not be fooled next time!"

"Okay, I plan to install 120 of these cannons on the Magic Pill, and I will find you as a target next time." Yi Zhicheng nodded.

The corners of Gu Ming's eyes twitched heavily.