Seeing that there was no one around, Uehara carefully wrote down the formula (m1v1+m2v2=m1v1'+m2v2') in his notebook, read it carefully, thought about it for a long time, and drew it out.

This formula is the formula for the conservation of momentum, one of the three fundamental theorems of modern physics, and it was written down because Uehara thought of a way to further strengthen the rock crowbar technique.

After the vigilance mission, it was time for dinner, and lunch was the most hearty of the day, especially today. After going out with a ninja umbrella on his back, Tsuchiya shot down countless birds, as many as one per person, and the devil knows how he found so many birds in the jungle where there was no sunlight.

"Fatty, Xuelesa, did the squad leader arrange a vigilance task for the two of you in the afternoon?" Uehara was very happy to eat and asked as he ate.

"Nope." The fat man's mouth was stuffed with food, and he said knives in a hurry.

"Neither do I." Shelersha is a girl, and she eats much more elegant than the fat man and the original plain, at least she knows how to put down her chopsticks before she speaks.

"That's good, it's been a long time since the Shangyuan class has fought side by side, Tuling Danzi's technique, are you throwing it accurately?" Uehara asked with some regret that the members of a squad now have their own combat missions, and it is difficult for them to unite again, in fact, other squads are similar, so after the loss of many squad personnel, everyone will no longer be forced to reorganize and complete the establishment.

"Mine is very accurate, but Sycamore is the most accurate!" After Xuelesa finished speaking, she didn't forget to praise the fat man.

"That's good." Uehara nodded, the technique of Tuling Tuanzi is more suitable for fat people, others hold big stones, but they can't hold on, but under the huge force of the fat man, they can still have time to raise and aim, so the accuracy is not a little higher than others, and the big stones he condensed are much larger than others.

Although the time was urgent, everyone had to hurry up, but after discussing with Tsuchiya, Sasaki, Uehara, Spidermaru and Shrinemoto, they decided to stay for two days to allow everyone the necessary time to practice ninjutsu.

In the afternoon, Uehara took the fat man and Xuelesa to the worship class, which specialized in the advanced ninjutsu of the earth flow wall technique, the A-level multiple earth flow wall and the B-level earth flow city wall technique, and Uehara just wanted to experiment and improve the rock crowbar technique, and it was perfect to use the earth flow wall as a target.

"You, are you feeling better?" The priest went to the medical class to receive the daily routine treatment, and Feng Jia didn't know where to go, leaving Yi alone in the shrine class for the time being.

"Captain Uehara, you're here." With his eyes closed and pretending to sleep, he heard the sound of footsteps and greeted Uehara kindly.

"I haven't seen you for a few days, the bird has eaten so fat, is it still flying?" Uehara looked at the chubby bird lying on his shoulder, and couldn't help but touch it, and remembered the experience of being pecked and bleeding last time, and withdrew his hand in a sneer.

But this time it was different, the little bird with only one foot flapped its wings, landed on Uehara's shoulder with one foot, and kept pecking at Uehara's cheek with its beak, obviously begging for food.

Hurriedly took out a compressed biscuit, and looked at the bird that pecked the hard biscuit, Uehara looked surprised, "You, this little bird is so powerful!" And, how did it know me this time? ”

"Every time I finish that technique, it will get a little bigger, and then, it will eat more......" helplessly looked at the little bird, which was fat into a ball, "I have performed the spell on everyone, the bird knows everyone, if I sacrifice, it will ......"

"Phew!" Uehara was dissatisfied, and spat fiercely, "I don't care, my little bird will take care of it myself, if you die, I don't care, such a chubby little bird, it looks delicious!" After saying that, he also glared at the little bird viciously, as if he felt the malice, the little bird tilted his head and stared at Uehara with his eyes dripping, and then flew up and kept slapping Uehara's head with his wings, and Uehara had to beg for mercy.

He smiled and watched Uehara frolicking with the bird, and the bird who performed the spell would not indiscriminately hurt his companions.

Frolicking enough, Uehara helplessly tidied up the hair that was messed up by the bird, "Yi, this kind of technique of yours is a secret technique, are you a ninja of the secret art family?" ”

"It's a secret art, but it's not a secret art family, there are only two ninjas in my family, one is my grandfather, and the other is me." Yi was silent for a moment and replied to Uehara, "Originally, there were six psychic birds, all of which were raised by grandpa, but now there is only one left, grandpa is very old, if I die, I want the little bird to go back to accompany him......"

Uehara couldn't hear this kind of sad thing, and wanted to say something, but he saw Yu looking at him with hatred, "What's wrong, Yi?" "Uehara is inexplicable.

"I heard Spider Pill say that my psychic bird was eaten by you, right?"

"Phew!" I didn't expect the thick-eyed and big-eyed spider pill to deceive people. "Obviously it was shot down by Spider Maru, but your bird flew too low and was kicked down by him......"

Seeing that Yu looked unconvinced, Uehara touched his forehead with his hand, with a painful expression, Spider Pill, this guy, if he has the opportunity in the future, he will definitely have to settle accounts with him.

"Uehara, what are you looking for me?" While he was talking, the fat man retrieved the ritual book, but the snow lesha who went to find Fengjia had not yet returned.

"It's not a big deal, it's just that we want to experiment with ninjutsu, and we need your Earth Flow Wall Technique, so let's wait for Fengjia to come back." Uehara looked at the shrine with a bandage on his abdomen and asked with concern, "Shrine, how is the recovery from the injury?" ”

"Initial healing." Shimoto touched his abdomen, which no longer felt pain, "The medicine that I found from the Konoha ninja has a pretty good effect. ”

"You don't have to wait for Feng Jia, I can come by myself with the technique of multiple earth flow walls." Jiben waved Uehara to go to the training ground of the class.

"That's an A-grade ninjutsu, you mastered it so quickly?" Looking at the shrine book with a look of surprise, Uehara obviously didn't believe it.

"I've been exposed to it before, so it's not hard to learn...... It's here. Coming to the training ground opened up by the Worship Class, the Worship Ben motioned to the fat man and Uehara to step back, "Earth Escape - the technique of multiple earth flow walls!" ”

After a long time, the shrine came out of the smoke and dust, patted the dust on his body and said, "I have almost compressed the amount of chakra to the limit of activating this ninjutsu, and the four earth flow walls in each direction will consume half of my chakra at a time." Okay, you can give it a try. With that, he stood aside and watched the upcoming training of the Uehara class.

"That's on, fatty." Uehara moved his hands and feet, "After I use a rock crowbar for a while, you use a soil rhombus dumpling, remember, there are too many chakras, don't smash my rock stick." ”

Looking at the prepared fat man, Uehara reminded him, "There are twelve seals in the rock crowbar technique, waiting for me to ......"

"I'll seal after you make eight seals." The three of Uehara's class had enough tacit understanding, and before Uehara finished speaking, the fat man understood his words.

"That's right." Uehara nodded, "I'll experiment by myself the first time, and we'll try the combination ninjutsu again the second time." ”

"Earth Escape - The Art of Rock Warping Sticks!"

Twelve handprints were quickly formed, and the rock sticks that flew out of the ground were like long arrows off the string, and swooped straight towards the earth flow wall.

"Poof" and "poof" came twice, and finally there was a boom, and the third earth flow wall was also blown down.

"Is the multi-earth flow wall so hard?" Uehara jumped onto the earth flow wall to check the destructive power of the rock warping stick technique on the multiple earth flow walls, and the result was somewhat unexpected to him.

"Well, we have experimented, and the number of multiple earth flow walls has not only increased the number of earth flow walls, but also strengthened the defense power." Shimoto walked over and explained Uehara's doubts.

After changing directions, "Fatty, it's time to start." Uehara reminded his companion to get ready.

"Earth Escape - The Art of Rock Warping Sticks!"

"Tu Dun - Tuling Tuanzi's Technique!"

The two ninjutsu didn't staggered for a long time, one after the other, and the sound of explosion sounded, and the moment the rock stick was formed, the Tuling ball smashed its tail, and the rock stick that was not slow was accelerated, and it became even faster.

After the impact, the speed of the Tuling dumplings plummeted, and they flew for a short distance before rolling to the ground. At this time, the rock stick also hit the dirt flow wall, and after a few soft pops, the shrine was more concerned about the final result than Uehara, and he jumped on the earth flow wall one step ahead of Uehara.

"The four walls of earth flow have all been penetrated." Saimoto frowned and looked at the rock stick that broke under the impact, "Although Uehara's rock stick has also reached its limit, there is no guarantee that we will not meet a stronger earth escape ninja, Uehara, stay and train with me, as the only person who has mastered multiple earth flow walls, I am responsible for providing everyone with a completely invulnerable defense." ”