At night, without the participation of loess, Uehara and they discussed the personnel arrangement for the night, and the earth dog and Uehara became a group, a strongest reconnaissance ninja, and a cannon fodder for the most salted fish, which is a match for balancing combat power.

"I'm sorry about the daytime, Uehara." The earth dog thought about apologizing, but he couldn't say anything, and hesitated for a long time before finally making up his mind.

"Apologies...... You get up first. Looking at the earth dog who refused to get up for a long time, Uehara tried to pull him up but failed.

"It's okay to apologize, we're done." Uehara pulled him hard again, and finally pulled the earth dog up.

took the hot tea handed over by Uehara and took a sip, and the earth dog said hesitantly: "Uehara, am I very annoying?" I often ......"

"Not really." Uehara smiled and shook his head, "I used to have a friend whose name was Spidermaru. Saying that, Uehara looked at the burning bonfire in a daze of nostalgia, "In the beginning, this guy was very annoying, looked down on weak people, and didn't care about his companions, but later he ......"

"And then, he died?" After another sip of tea, the earth dog who didn't talk much took the initiative to chat, and he carefully took Uehara's words.

"the chicken!" Uehara almost couldn't hold back his frenzy again, even though he knew that this guy had no ill intentions at all.

"Bastard Dirt Dog!" snapped, and slapped on the back of the earth dog, "If you can't speak, don't speak, you will be beaten if you talk like this!" ”

"But then again," Uehara stared at the somewhat evasive gaze that the earth dog showed out of the mask was a little amused, "I think it may have something to do with the nature of your work in the shadows, the guys in the shadows seem to have a very low emotional intelligence, and the same is true of the earth teeth......

……

After saying that, there was nothing dirty, and Uehara and Earth Dog returned to the tacit understanding that ninjas easily formed, guarding one left and one right.

It's boring to be on duty at night, and you can't speak loudly, and you don't have a novel to read, so you have to be vigilant enough, but fortunately, there are not so many big trees that cover the sky and the sun in the land country, and the starry sky is just right at night.

"There are no Big Dipper stars," Uehara counted the stars one by one, "Isn't there a Cowherd and Weaver Girl, the Cowherd and Weaver Girl are in the ......"

"Awesome!" After looking for a long time and not finding the Cowherd and Weaver Girl, Uehara scolded in his heart, in this strange world, even the stars are weird.

There was a subtle sound of metal clashing in his ears, and Uehara looked back to see that it was a dirt dog gently arranging traps or something.

"Enough of the traps, Earth Dog," Uehara wondered, "Did you find anything missing?" ”

"It's true that there are some places that are not covered." Nodding, the earth dog looked into the distance, and under the faint light of the bonfire, a flickering cold glow could be faintly seen in the clearing in the distance, which was the light reflected by the shuriken.

"Do you have something that you can use to set a trap, Uehara?" Touching the backpack, the backpack was already empty, and the earth dog then remembered that it seemed that this guy Uehara had a lot of messy things in the scroll.

"If you set a trap, yes, wait for me to find it." Nodding, Uehara pulled out a scroll and took out a large pile of things with a bang.

"Wire shuriken barb, stab beast clip, and something else." Uehara turned out a bunch of things and handed them to the earth dog.

Then, as if suddenly remembering something, Uehara scratched his head, "There are so many things, I almost forgot about these ......"

With a bang, there was the sound of another scroll opening, and Uehara pulled out a bunch of boxy boxes, "This is the finished trap," and opened a box, revealing the intricately crafted gear chain and various trigger mechanisms inside, as well as the thousand books placed on it. Such a complex thing was not made by Uehara, but he spent a lot of money to have the accessories made by the special ninjas in the village, and finally assembled it himself.

"The method is very simple, just dig a pit and bury the trap in it," he said, pointing to the scale mark of the box and showing it to the earth dog, "This is the location." After burying it, "Uehara closed a wooden board on the top of the box, "This lid has been treated to fit the environment of our land country, so it is made into a mixture of earthy yellow, gray and pale green......

Seeing that the earth dog looked interested and didn't know much at the same time, Uehara kindly explained to him, "After this color is camouflaged, it is difficult to find ......."

"But Uehara," Tsuchigu said his doubts, "if the other party has a detection or perception ninja, this exact trap can be easily destroyed......

"I thought of what you thought of, too." Uehara nodded, "The most hateful thing is the Hyuga ninja, any traps are useless to them. ”

"So I made this kind of trap, hehe, it's a fool." Bang's punch smashed on the trap cover, the force was very great, in the terrified eyes of the earth dog, but nothing happened, he just saw it, Uehara only closed the lid after the machine bracket was activated.

"We've fought with the guys in Hinata, and they have a characteristic of fighting," Uehara thought carefully, "Hyuga ninjas always appear on the battlefield as a supporting force, and when they find traps, they often mark them with shuriken to guide their companions, and then the ninjas who get the hint are either careful to avoid them." Or, instill chakra on the soles of your feet, and walk over lightly......"

"There's no way to avoid it, so my trap is for the second situation." Saying that, Uehara gently let go of a box with a large face plate, kicked it lightly and then quickly threw it all into the distance, and soon after throwing it out, there was a bang, and a cold mang was seen by the earth dog who was far away.

"See, I've tuned the bracket to be less flexible, otherwise I would have started it the first time I stepped on it." Uehara handed over all the trap boxes to the earth dog, "This trap is very sensitive, even if it falls with the weight of a rabbit, it will touch the trap, but the engine includes the landing point rather than the power ......"

Uehara couldn't stop talking about what he was good at, and after a while, he talked a lot, and the earth dog shook his head and left, and Uehara's mouth grew and opened and closed.

Mathematics is a great subject, even in a fantasy world, it still plays a vital role, because no matter in which world, as long as one plus one is still equal to two, then the principles of integration can be used, calculus can be used, and mathematical modeling can be used. In ancient warfare, both the East and the West have some basic tactical patterns, for example, the basic formation of defense is a circular formation, and the basic formation of attack is a phalanx. The reason for attacking is to use a square formation, because on a plane, a soldier who attacks the enemy may have to face a whole row of his own swords and spears, which is a nightmare for everyone......

After experimenting countless times, how to make the trap trigger by the size of the contact area instead of power, Uehara finally thought of a way, the square trap cover plate is accurately divided into 20 times 20 four hundred points, each point is linked by a lever, Uehara has done experiments, rabbits step on the trap, if divided into one foot to land, two feet to land, body to all fall and so on, the average is 17 landing points. There are 12 for canines, 21 for larger creatures such as bears, and the landing point of humans is more complex, and the size of the feet of people of different ages is different.

Based on the average of twelve-year-olds to eighteen-year-olds, the reason why these two values are taken is because ninety-nine percent of the ninjas on the battlefield are older than twelve, and the younger ninjas are a minority after all, and at the age of eighteen, most of them have fixed footsteps, so the average is 23 trigger points......

The finished product Uehara himself didn't tell anyone, he tried it secretly, once buried a trap at the entrance of the village without putting ninja equipment, there were 623 people who passed by and triggered the trap in one day, including 410 ninjas, only 11 people failed to trigger, and the children who passed by did not trigger the trap, and some of the large psychic beasts of the ninja, such as Uehara saw a guy's psychic beast was a big boar, and the trap was also not triggered after passing by.

The success rate has reached more than 99 percent, which shows that Uehara's idea of making traps is right, but not to mention traps, it's just that the parts required by Uehara with tolerances of no more than 0.1 millimeters will use up his commission for an S-level task, you know, the tolerance of 0.2 millimeters is already the production standard for the best quality shuriken.

"Uehara." Just when Uehara was thinking about how to improve the trap, the earth dog came back after setting the trap. "Are there any more traps, there's still a gap."

"It's gone." Uehara shook his head, "Still, you can try this." With that, Uehara threw a small barrel to the earth dog.

"What is this?" The earth dog tinkered for a long time and didn't understand what it was.

"The things I removed from the ninja umbrella can be loaded into a thousand copies, one is fine, and multiple can be the same." Uehara took out another cylinder and showed it to the earth dog, only to see him twist the bottom of the cylinder slightly, and then press it again, and a Senbon flew out with a whoosh.

"I call this thing an anti-infantry mine." Uehara smiled, "Although the power is small, but the size is also small, it is easy to overlook, this is the perfect place to pierce the enemy's feet......"

Earth Dog once again left with a bunch of small black cylinders given by Uehara, hell, is it really lethal enough for traps without detonating charms?