"Grandpa, why does the amount of chakra consumed by the stand-in technique become so terrifying when it only adds a little distance?" Echizen Kazuya, who was unwilling, asked in annoyance.

Sarutobi Hichisaki was silent for a moment, not knowing how to answer Echizen Kazuya's question, and finally had to say helplessly: "Maybe it's the restriction of the rules!" ”

When Echizen Kazuya heard the word rule for the first time, he asked curiously, "Grandpa, what are the rules?" ”

"Hehe, you'll understand when you come into contact with it in the future, just learn the basics with peace of mind now," Sarutobi Hichisaki didn't answer Echizen Kazuya's question, but rubbed his head and said with a smile.

"But Kazuya can continue to think about it, and maybe you can find a way to improve your stand-in technique! Like the idea you came up with using other methods of perception to use the stand-in technique, it's very interesting. Perhaps it was for fear of dampening Echizen Kazuya's enthusiasm, Sarutobi continued.

"Okay, thank you grandpa, your guidance has made me understand a lot about the stand-in technique, and it has helped me a lot!" Echizen Kazuya put aside the doubts in his heart and thanked him sincerely.

Hearing Echizen Kazuya's words, Sarutobi laughed twice, and Sarutobi said: "Hahaha, preaching and teaching to solve doubts, this is what you should do as a teacher, I just hope you don't go down the wrong path in the future." ”

"Don't worry, grandpa, I won't be like that," Echizen Kazuya knew that Sarutobi was worried that he would go on Orochimaru's path, and said with a smile.

After asking a few more small questions, Echizen Kazuya knew that Sarutobi would definitely have to be busy with his own affairs, so he politely offered his farewell.

Before Echizen Kazuya left, Sarutobi Hizaki explained to Echizen Kazuya and asked him to come to him at any time if he had any problems in the future, and then asked Inoue Kawa to send Echizen Kazuya back to the Yamanaka flower shop.

When he returned home, Echizen Kazuya was warmly treated by Yamanaka Kaichi, who kept asking about what Echizen Kazuya Sarutobi had taught him, and was envious of Echizen Kazuya's teachings from three generations.

Annoyed Echizen Kazuya finally had to use the excuse of Sarutobi to let him practice the knowledge taught today, and he successfully escaped from Haiyi's clutches.

"Open the eye of the heart first, and then use a normal stand-in technique to see if the eye of the heart can always observe the surrounding environment while using the stand-in."

Echizen Kazuya had noticed before that the moment he used the Stand-in Technique, his vision was dark, and only the items containing his own chakra would emit a clear signal of its location.

The object containing its own chakra is like a bright light source, and the body will subconsciously approach it, and then complete the exchange of positions in an instant.

Even after successfully completing so many stand-in techniques, Echizen Kazuya didn't understand how he managed to swap places with items, as if he could swap places with the corresponding items as long as he met all the conditions for using the stand-in technique.

It's like a program, even if the person who enters it doesn't know what it does, it doesn't matter how it came about, just copy and enter it, and it can do what it already does.

"Maybe that's what the three generations call the power of the rules!" Kazuya Echizen thought secretly.

Stopping his thoughts, Echizen Kazuya decided to try to see if the "Heart Eye" could perceive the environment around the body at the moment when the stand-in technique was activated, and if it could, then there would be no need to use an item containing his own chakra to indicate the location when using the stand-in technique in the future.

Concentrate on the mental power in the eyes of the heart, and with the proficiency of 82% of the stand-in technique, Echizen Kazuya smoothly used the double-use technique in the state of "heart eye".

The moment he completed the exchange of positions and arrived at the location of the item, Echizen Kazuya felt as if he had suffered severe motion sickness and vomited violently.

When the space was exchanged, the darkness that was originally invisible did become "visible" under the vision of the "heart eye", but what Echizen Kazuya saw was that the space around him was filled with countless chaotic whirlpools, layered and densely staggered, and the stable space around the original itself seemed to become extremely disordered.

When Echizen Kazuya saw these whirlpools, it seemed to be 10,000 years in a short moment, and he suddenly felt a lot of mental power consumed, and he was dizzy for a while, and the world was spinning, and after barely supporting himself and completing the stand-in technique, he couldn't stand it anymore.

After vomiting, Echizen Kazuya's face turned pale, and he had lingering palpitations about the spatial vortex he had just seen, even if he didn't have a phobia of intensity, he still couldn't stand the kind of vortex that was almost infinite in number, different in size, shape, and color, and still spinning.

"What exactly are these whirlpools? How can there be so many? What does the real principle of the stand-in technique have to do with these vortices? Although he instinctively wanted to stay away from these whirlpools, Echizen Kazuya still had countless curiosity and reluctance in his heart, like countless cat's paws scratching in his heart, driving him to explore the secrets hidden behind these whirlpools again.

After taking a few deep breaths, Kazuya Echizen still suppressed the impulse in his heart, and he decided to cultivate the stand-in technique until MAX before exploring, although he didn't know if MAX's stand-in technique would help him explore the secrets of the vortex, but he decided to wait a little longer.

In addition to the effect of the vortex stunning, the large consumption of mental power in a short period of time is also a reason for his violent vomiting.

Echizen Kazuya knew that the remaining spiritual power was no longer enough for him to observe the spatial vortex again, and if he tried it forcibly, he would have to pass out.

After cleaning up the filth on the ground, Echizen Kazuya began to honestly practice ordinary ninjutsu, hoping to improve his proficiency a little more, so that he could start upgrading his skills as soon as possible.

"Kazuya has been accepted as a disciple by Hokage-sama!"

Just when Echizen Kazuya was practicing ninjutsu, in the ancestral hall of the Yamanaka family, the clansmen who were gathered by Yamanaka Kaichi were in an uproar because of his words.

"What! Is this true, Haiyi? Yamanaka Keito, who was the first to react, couldn't help but stand up and asked in a trembling tone.

Yamanaka Haiichi nodded solemnly, and said proudly, "I personally took Kazuya to the Hokage's office, and Hokage-sama accepted Kazuya as an apprentice in front of me!" ”

"That's great," Yamanaka said overjoyed.

"Hahaha, is our mountain family going to produce a three-ninja level powerhouse? It's exciting to think about! ”

"I didn't expect Kazuya's nephew to be favored by three generations of adults, it's really enviable!"

"Hahaha, I said a long time ago that he is not an ordinary person, now you believe it!" Yamanaka stood up too excitedly and said triumphantly.

"Cut, and we are also geniuses, we have known for a long time, and we still need to say it!"

"Yes, I remember that you kid wanted to oppose and accept the inheritance at the beginning, but now don't think about it, hehe!" Yamanaka said with a deliberate smirk.

"Brother Hai, I was wrong, I was blind at the beginning, you don't remember the villain, just forget that bit of, you see how good I usually am and how good!" Yamanaka Kaze pretended to be pitiful, rushed over and hugged Haiyi's thigh and cried, and the ghost cried wolf howl, causing everyone to laugh.