It took a long time, and Uehara didn't notice anything, and he didn't waste any more inconsequential time foolishly perceiving chakra. The study of medical ninjutsu is equally important, and Tuba himself asked Mai to come over, and if he doesn't hand in his homework, he won't have to go again.

The hospital in Iwakuin Village gave Uehara a strange feeling, not to mention the shiny tiles on the ground and the white and flawless wards, all of which were not much different from those on the earth, but it would be better if they ignored the green chakra of the doctor's treatment and replaced it with a hand.

Toba's courtyard was a small building in the middle of the courtyard, which contained his reference room, research room, and office for the entire hospital, as well as his private clinic, as well as a small laboratory that Uehara had bought for his son and the village.

Speaking of Yazi and the village, as soon as Uehara opened the gate of the yard, he saw through the glass two people cooperating with each other to dissect a little rabbit, and seeing that the two of them were engrossed, Uehara decided that it was better not to disturb them.

"Hey, Uehara, morning!" Uehara leaned against the wall and wanted to walk over quietly, but he was discovered by a careful man.

didn't say hello, knocked on the glass with a bell to signal to continue working hard, and Uehara left, everyone's friendship has long been no longer necessary to express in too many words.

Walking into Toba's office, it's strange that this guy isn't there.

"Tuba!" Uehara screamed.

"Little ghost, by the way, it's been a long time since you've been here for a review." The person didn't show up, but the voice came out first.

"Recheck or something," Uehara scratched his head, "I'm very busy, and besides, Mai's medical ninjutsu is also quite good, so it's better not to bother Toba-senpai." "The reason why I didn't come to the ninja hospital is because those rock ninjas who are sent every day with strange injuries are too stimulating to Uehara's senses, and injuries are inevitable, but with broken limbs, he still talks and laughs with others under the treatment of a group of medical ninjas, even if that guy screams, Uehara will feel better. As expected, the young ninja had already lost signs of life before the end of the treatment. There were a lot of wounded, but there was no moaning, Uehara knew what the reason, and the hundreds of people also survived like this. When the medical ninja was not enough, the Spider Pill guy took the red kunai to stop the bleeding of his wound, his face turned pale but he didn't make a sound, and there was an enemy in the distance, so he couldn't make the slightest movement......

"I also use stealth in my office." Uehara looked at Toba, who slowly appeared behind his desk, a little speechless.

Strange actions, there must be strange reasons, Uehara opened his eyes and carefully swept all the corners, and found nothing unusual "There is a pungent smell in the air......", Uehara twitched his nose, "Tuba, are you experimenting with any medicine?" ”

"That's right." Toba walked over to his seat and sat down, "How much do you know about the art of invisibility, Uehara?" ”

The art of stealth, Uehara is no stranger, he himself has mastered the art of rock concealment, using the earth to escape chakra and the rock or the land to fuse, to avoid the enemy's detection, or to attack the enemy secretly, a very useful technique.

"The art of invisibility, I'll have one, I don't know much." Although it is very similar to making a big statement, but after thinking about it, I really have no confidence, and Uehara is very humble to admit his shortcomings.

"Rock Concealment, Camouflage Stealth, Dust Concealment, Shadow Clone, Fog Concealment, etc." After saying a word, Toba picked up the cup and drank it one by one, and did not continue to speak, how could Uehara, who had explored Chakra's incomprehension, want to listen to his teachings, how could he tolerate him so abruptly.

"Invisibility, what does it have to do with your potion?" Uehara was puzzled, "Could it be something like the dust of development?" ”

"Dust of Appearance," Tuba smiled silently as he opened his mouth and put down his glass, "I like the name. ”

"The common methods of dealing with the enemy's stealth technique include the ability to correspond to the five senses of people, smell, hearing, touch, taste, and sight." Looking at Uehara, who was frowning and contemplative, Toiba continued, "When someone passes by, gas molecules will be left in the air, which will be traced, but eventually the smell will dissipate. ”

"So, this agent can increase the time that gas molecules stay in the air, right?" Uehara nodded, "If there are ninjas similar to the Inuzuka clan in the village, this potion should be of some use, speaking of potions......"

Uehara said as he untied the backpack behind his back and took out a small box, which was originally full of pills and pills, "The subject you gave me asked me to study the properties of this soldier food pill," Uehara slammed the pill box on the table with a snap, "Are you sure you didn't give me the medicine?" Is this really a soldier food pill? ”

Taking out a small notebook, Uehara flipped through it, "There are four aspects that play an important role in chemical reactions, temperature, pressure, pH, and catalyst." ”

Uehara turned the first page and took out the sketch next to the pen as if no one was around, "On the first day, I designed twenty temperature gradients, ranging from zero to 100, and the result was that after the temperature exceeded forty degrees, the drug melted. The difference between the mass and the total weight of the melted reagent proved that a considerable part of the substance was vaporized......"

……

"On the fourth day, the sixteen rabbits I used for my experiments all died. It is common sense that the Bing Food Pill has a negative effect on animals, I know it. But the negative effect should not be so great, so, I think your drug has a fatal flaw. ”

……

"On the eleventh day, I cultivated several fast-growing plants in a petri dish, and under different acid-base conditions, there were obvious differences in the promoting effect of Bingliang pills on the plants......"

……

"Twenty-fourth day!" Uehara snapped and closed the book, "I'm too lazy to experiment anymore, this is not a soldier food pill at all, the ghost knows what medicine you gave me." There was once a guy who experimented a thousand times to find a qualified material for making filament, and he even used something unreliable like a beard, so I didn't care about the rationality of logic. Then I calcined the pills over the fire, and dripped them with a mess of liquid, acid, alkali, water, blood, honey, and everything else I could find, and finally, I typed in a little chakra, and guess what I found! Uehara's eyes sparkled.

"Forget it, let you take a look!" As he spoke, Uehara took out a calcined pill, then slowly entered a little chakra, and after waiting for a while, he threw it against the wall with a whoosh, and then like a match rubbing into a cragling fire, with a bang, the pill exploded into a ball of fire.

"See? This almost blew me up in the experiment. Uehara blinked his eyes with a look of anticipation, "Do you still have this pill?" Give me a little more, and I think I can make the explosion a little bit more powerful! ”

The corners of Tuba's mouth twitched, and the medicine he threw to Uehara was just a box of expired medicine that was turned out randomly, and he didn't expect anything to be researched at all, but Uehara, who had received a systematic science education, really let him research decent results after following some classic research methods in scientific research, such as the yield control method, the mathematical simulation method, and false ideas.

"Bastard imp!" Tuba's face drooped, and suddenly became serious, "Where is there any medicine to make explosives, get out, your second project will be completed in a week!" ”

Without waiting for Uehara to react, a thick book slammed over, and Uehara hurriedly caught it.

"Damn, it's so thick!" Without waiting to see the name, Uehara ran away with the book in his arms, Tuba has some inherent shortcomings of old men, old-fashioned, paranoid, easily angered, and likes to criticize people, the easy-going Uehara can't stand him anymore, not to mention how unfortunate the boy who studies under Tuba every day must be.

Watching Uehara walk away, Toba slammed the window shut, turned on the chandelier and collected all the powder from the explosion. Picking up the two intact pills, Toopa frowned, then put the pills on the alcohol lamp and calcined them slowly, and then extinguished the alcohol lamp, Toba was not afraid of being hot, pinched one and threw it at the wall, and then the pill hit the wall and shattered, but there was no explosion.

Picked up another pill, slowly input some chakra, I couldn't feel any change in the pill, the palm of Tuba's hand slowly condensed the green medical chakra, he finally found the abnormality, the whole pill had chakra instilled, the whole structure became extremely active, but without waiting for Tuba to study further, bang, the pill exploded directly in his hand.

There was a slight injury to his hand, but Tu Ba didn't care, he picked up the medicine box and looked at it again, "The medicine prepared a long time ago, what kind of medicine is this?" There wasn't even a label, the child's attribute was Tu Dun, mine was Shui Dun, and the chakra reacted with some of the ingredients after calcination, or maybe it was just an accident......"

Uehara's small explosive pill is equivalent to the apple that smashed Newton, not to mention the Tuba who rummaged through the boxes and cabinets of expired medicines, Uehara was also very distressed.

"Tuba Medical Ninjutsu Note" is the name of this book that is thicker than a dictionary, and the book named after itself will not be too light, such as Uehara's Uehara Ninja Script......

Uehara didn't even notice it himself, since he played with the detonation charm, he became more and more obsessed with explosions, and even the pills were inexplicably turned into explosives by him, and he was moving more and more in the direction of the big explosion ratio.