A convenience store opened in Naruto

Killer Bee from the Hidden Cloud Village? Zabuza's eyes narrowed. If it was him, it would be possible.

He knew about Killer Bee, although he had never seen him, but he knew from other ninjas how terrifying Killer Bee was. He was no match for Killer Bee.

"Wow, shop owner, you know a lot," Naruto showed an admiring expression on his face, but he changed his tone and muttered again, "But you still didn't tell me why this guy followed us, and why I have to carry this..."

He wanted to say 'broken sword', but Zabuza's unfriendly look made him change his words in time: "The legendary beheading sword?"

"The Seven Ninja Swords are known to many people in the ninja world. Anyone who studies weapons will know a thing or two about them. I'm not the only one who knows about them, right Kakashi?"

Kakashi nodded. Indeed, the Seven Ninja Swords were very famous and he knew a little about them, but not as much as Ye Feng knew. He could hear that Ye Feng hadn't finished speaking yet. He was thinking that Ye Feng might know the characteristics of each of the Seven Ninja Swords.

"Look, let me tell you," Ye Feng spread his hands and continued, "As for why Zabuza followed us, just understand that he is our prisoner. We want to bring him back to the village and get some information about the Hidden Mist Village from him."

Ye Feng said sinisterly: "If he doesn't tell us, we will torture him. We will use pepper spray, tiger bench and so on. Even the toughest man will not be able to withstand it."

"Naruto, you must not fall into the hands of the enemy, otherwise, you will experience what it means to be connected to the heart."

"The enemy will hold a toothpick, aim it at the crack between your fingernails, and hit you hard. Hiss, that feeling is so sour just thinking about it."

"Hiss!" Naruto also took a breath of cold air, his fingers unconsciously clenched into fists, hiding the gaps between his nails in his palms.

"So you should understand why I want you to carry a beheading sword, right?"

Naruto was a little confused. Should he understand it or not?

Seeing Naruto's stupid look, Ye Feng was deeply distressed and said earnestly: "What a fool! Think about it, if you want to avoid falling into the hands of the enemy, don't you have to be stronger than the enemy?"

Naruto nodded, that was true.

"You are stronger than others, how could you fall into the hands of the enemy?"

Naruto nodded again, there was nothing wrong with this.

"But how can we be stronger than the enemy?"

Sakura answered quickly: "I know this. If you have more chakra than the enemy, you will naturally be stronger than the enemy."

"That's right and wrong," Ye Feng shook his head and said, "Of course, the amount of chakra is the basis for judging the strength of a ninja, but it is not the only way to judge."

"The amount of chakra is closely related to your personal physical fitness."

"If your physique is strong, your body will be able to store more chakra than others. If your physique is weak, it will become an obstacle to the increase of chakra in your body."

"Too much chakra, without a good body to support it, the first one who can't bear it is you, and your body will collapse, causing you to suffer from various diseases."

"Some people may not understand and say, 'Huh? How could I get sick? I didn't eat anything weird?' Little do they know that it is the chakra in their bodies that is transforming their bodies."

"The purpose of the transformation is to allow the owner of this body to better adapt to them and bring out their power, rather than having them have 100% of their power while their owner can only exert 70%."

"This is why some people have power but cannot use it."

"Of course, there is another way that can also enhance your strength. The fine control of chakra can also give you an advantage in fighting with the enemy."

After a pause, Ye Feng took a sip of water. He had talked too much and his throat was a little dry. After drinking the water and moistening his throat, Ye Feng continued, "Just like what I said before, some people have 100% of their strength but can only exert 70%, while some people can use this 70% of their strength to exert the power of 100%."

"There is a good example right in front of you. Yes, it's me. I don't have much chakra in my body, just a little more than Kakashi. But if Kakashi fights me, he will be the one who loses. Do you know why?"

Everyone shook their heads. Kakashi also wanted to know. He wanted to know why Ye Feng’s control over chakra was so precise?

"You don't know? Ha!" Ye Feng said proudly, "That's because I never do unnecessary things. When you release ninjutsu, you have to make hand seals. Making hand seals not only wastes time, but also consumes physical strength. Although the time wasted and the physical strength consumed is not much, have you heard of the saying 'a little bit adds up to a lot'?"

"After a battle, the time you spend on forming seals and the energy you consume combined, isn't that a small amount?"

"Also, when you release ninjutsu, chakra will be released. Once the chakra leaves the body, there will naturally be no chakra left in your body. The more ninjutsu you release, the more chakra you lose. When your chakra loss rate is faster than your replenishment rate, it will affect your combat endurance."

"I'm different. When have you ever seen me cast hand seals to release a ninjutsu? No, hey, this saves time."

"Also, when I release ninjutsu, the chakra will always be connected to the body, which prevents excessive chakra loss."

"It will definitely be lost. When the chakra comes into contact with the outside world, part of it will naturally evaporate."

"But the speed at which I replenish chakra is faster than it evaporates and loses. This means that anyone who fights a protracted battle with me is doomed to lose miserably."

"Your Kakashi-sensei's endurance is not good. It is inevitable that he cannot beat me."

Men can't stand being told they can't do something. Kakashi got angry instantly and said, "Let's try it some other time!"

"Let's give it a try!" Who is afraid of who? How can Ye Feng be afraid of Kakashi? He agreed immediately.

After taking another sip of water to moisten his throat, Ye Feng said to Naruto: "After all I have said, I believe you understand. I let you carry the beheading sword on your back to train your body. When your body is strong, your strength will naturally increase."

"If you don't want to carry me, then let Sasuke carry me. By then, Sasuke's strength will become stronger and stronger, and the gap between you and him will become bigger and bigger. Sakura will look down on you more and more."

"No!" Naruto instantly perked up when Sakura was mentioned, "The beheading sword is mine, no one can snatch it from me."

"You should ask its owner if he agrees with this. What do you think, Zabuza?"

"I have no objection." Zabuza said indifferently.

Before returning to Konoha Village, he was happy to have free labor. After all, the beheading sword was a relatively heavy thing. He had been carrying it for a long time and was used to it. He might not want to stop carrying it.

He was not afraid that Naruto would not return it. The beheading sword was taller than Naruto, and if Naruto used it as a weapon, it would only affect the display of his own strength.

Ye Feng? When Ye Feng picked up the beheading sword, his face was full of disdain, and he obviously looked down on it.

There is no need to talk about the other people. Bai is with him, Sasuke has never even looked at the beheading sword, Sakura's mind is all on Sasuke, and Kakashi also has his usual weapons and will not think of taking his beheading sword.

For a moment, Zabuza didn't know whether to be thankful or sad. He was thankful that no one here would steal his weapon. He was sad that the beheading sword was very famous in the ninja world, and there were many people who wanted to get it, but he just happened to meet a few guys who were not interested in the beheading sword.

"Alright!" Ye Feng clapped his hands and said, "Then you should carry it on your back before returning to the village. By the way, Kakashi, you and Kai have a very good relationship, so please introduce them to me when you return."

"What do you want to do with him?" Kakashi was a little wary. Ye Feng was too mysterious. Just the fact that he knew a lot of secrets in the ninja world gave him reason to suspect that Ye Feng had selfish motives in approaching Kai.

He made up his mind that if Ye Feng didn't give him a reasonable explanation, he would never let Kai and Ye Feng meet, and he would ruin it if he had the chance.

"Look at you, always suspecting this and that. What's the point if you just suspect and don't do anything?" Ye Feng was unhappy. Looking at the expression on Kakashi's face, he knew what Kakashi was thinking. Wasn't he just suspecting that he was approaching Kai with ill intentions?

"I want to find Kai and ask him to be my personal physical training coach." Ye Feng did not lie, this was his real thought. He also wanted to exercise his body. After all, only with a good body can he better exert his strength.

"Okay, if you don't want to help, then I'll do it myself," Ye Feng didn't have to rely on Kakashi's help. "After I go back, I'll go to the village and post a task, specifically asking Kai to be my physical training coach. Naruto, you can come along too. If you can learn Kai's real skills, then you can walk sideways in the ninja world."

Naruto didn't even know who Kai was, nor had he heard of him. He obviously didn't believe what Ye Feng said: "Is that Kai really that powerful?"

Sasuke also pricked up his ears quietly. He didn't care about anything else and was only interested in the topic of improving strength.

"You don't know this, right? Hey, let me tell you," Ye Feng took another sip of water, and then he started to talk at length, "Speaking of Kai, we have to first mention his father, Dai, whose full name is Might Dai. Although Dai is just a Genin, the title of Genin is not something that everyone can have."

"Genin is not to be feared. What is feared is the Genin of Konoha Village. Especially when this Genin has the title of 'tail', it means that this person will definitely achieve something in the future."

"Let's talk about it..." Just as he was about to talk, Ye Feng suddenly remembered that there were outsiders here. He thought about the wording and continued, "Let's talk about someone you all know, Jiraiya, one of the three ninjas. When he was a child, he was also called the last one. But now, everyone in the ninja world knows him. How strong is he? I don't need to tell you about it, right?"

"Let's talk about his other aspects. He has taught a total of six disciples. You wouldn't know two of them, so I won't talk about them. It's not appropriate to talk about the other three either. The only one left is the last one, who is also the most famous one, the Fourth Hokage Minato Namikaze."

"The Fourth Hokage was his apprentice. This shows how powerful Jiraiya is."

Kakashi's breath was in his throat, but when he heard that Ye Feng didn't say much, he felt relieved. He glanced at Naruto with a complicated expression, not knowing what he was thinking.

Ye Feng was still talking excitedly, and didn't notice Kakashi's strangeness: "Let's talk about Dai again. Many people may not have heard of him, but Zabuza should know his most famous deed."

"Zabuza is very powerful, right? Although he is just average in my opinion, his strength is rare in the ninja world."

"Before he became a rebel ninja, there were six people in his ninja village who were as famous as him. The seven of them were called the Seven Ninja Swordsmen. You heard it right. The seven of them were the masters of the seven ninja swords I mentioned before."

"I have to complain here. There are seven swords, but apart from the Broken Blade, Beheading Sword and the Thunder Blade, Fang, none of the other five swords look like swords. I don't even know who named them."

"Before Zabuza inherited the Vulcan Sword, the Seven Ninja Swordsmen were still other people. It was only because they met Might Dai, who kicked four of them to death, that Zabuza was able to take the position."

"Speaking of which, Zabuza has to thank Might Dai. Without Might Dai, he wouldn't have the beheading sword."

"Hmph!" Zabuza snorted and said nothing. Although what Ye Feng said was true, he would never admit that he was able to get the beheading sword because Might gave it to him. It was clearly his own efforts that earned him the beheading sword.