Naruto started cultivating immortality from creating the Six-fold Immortal Thief

"The lower Dantian is mainly composed of four acupuncture points: Guanyuan, Qihai, Shenque, and Mingmen, which just correspond to the four nodes of the Four Symbols Seal. They can also cooperate with the Yin Seal to construct the Qihai Seal. The first thing to do is to engrave the new sealing formula into the four acupuncture points."

All the mysteries of the Qihai seal echoed in Xiongsuke's mind. The chakra in his body flowed into the lower acupuncture points like lead and mercury, turning into black runes, which were engraved on the corresponding acupuncture points.

Xiongsuke has simulated this process in his mind thousands of times, the purpose is to ensure that there will be no mistakes, but even so, he is still cautious, not seeking speed, but stability.

As the sealing formulas in the four acupuncture points were engraved, with these four acupuncture points as the center, the sealing formulas were connected into one piece, turning into a huge spherical mark, and Xiongsuke suddenly felt a space similar to the Qihai in his abdomen.

Then, the chakra that had accumulated for six years and was as sticky as lead and mercury was sucked into the Qi Sea space like a storm, and then black lines began to spread from the spherical mark along the meridians in the body, wrapping it up.

Just like when Tsunade unlocked the Yin Seal and the lines of the secret book spread all over the body, the only difference is that Yusuke let the lines spread to the meridians throughout the body.

Meridians are the regulatory system in the concept of traditional Chinese medicine, and the acupuncture points of the human body are on the meridians. As long as you master the meridians, it is equivalent to mastering the acupuncture points of the human body, and mastering the acupuncture points is equivalent to mastering everything about the human body.

When all the meridians in the body are wrapped in black lines, they are integrated into the meridians. At this point, Yusuke's"Six Treasury Immortal Thief Chakra Version 2.0" is completed.

"Finally finished, let's see if it's really successful?! Or does it need to be modified!"

Xiongjie's face was full of joy, and he formed a seal with his hands and began to refine chakra. At the same time, he separated a strand of his mind to let the chakra in the Qi Hai space flow along the meridians.

Feeling the chakra flowing from the Qi Hai space along the meridians, absorbing the strands of chakra refined by Xiongjie and feeding back to the body, strengthening the body, especially when passing through the meridians where the six internal organs are located, the six internal organs absorb the most chakra, and finally send it back to the Qi Hai space.

"It really worked! But there are still some flaws, and it doesn't meet my perfect standard. I still need to concentrate my mind to refine the chakra.

But don't worry, when I have a more thorough understanding of sealing techniques and chakra refinement, I can improve it, and then these will no longer be a problem!"

Thinking of big guys like Uchiha Madara and Senju Hashirama who don't even need a connection seal, Yusuke believes that he will be able to do it in the future, and he doesn't care about this problem at all.

"Next, let's try to see if we can use ninjutsu!"

Thinking of this, Yusuke couldn't wait to quickly make seals with his hands, Chou - Xu - Chen - Zi - Xu - Hai - Si - Yin, eight seals took less than two seconds.

"Shadow Clone Technique!"

Following Yusuke's low shout, there was a"bang" sound of smoke explosion, and the shadow clone appeared next to him. Then, without even looking at Yusuke, the shadow clone walked to the snack cabinet next to him, took out snacks and started eating.

Yusuke looked at his shadow clone and found that this clone was very perfect, without the slightest difference. The only problem was his personality. He also understood that when he was sick in his previous life, he was like this, silent and only knew how to eat. The shadow clone will separate several aspects of the original body's subconscious, just like in the original work, Naruto and the shadow clone broke up and fought infighting.

Looking at the shadow clone, Yusuke nodded with satisfaction:"I didn't expect it to succeed in one go! With the shadow clone, my training plan will also change, and it will be more manipulable."

As a time traveler, Yusuke will never forget the wonderful use of shadow clones. It's a pity that it is not the multiple shadow clone technique. Although the latter has only two more words than the former, it only takes one seal to create multiple shadow clones.

And if you want to create multiple shadow clones with the shadow clone technique, you must be proficient in shadow clones to a certain extent. Moreover, Yusuke does not have Naruto's blood and the Nine-Tails. Too many shadow clones are not good. He can't bear it now.

After removing the shadow clones, Yusuke came to the training ground of the Akimichi clan and created five shadow clones. One learned the sealing technique, one was familiar with the Akimichi secret technique, one learned ninjutsu, and the remaining two learned various physical techniques, while the original body was practicing physical techniques to try the effect of the new technique.

Half a day passed, and Yusuke removed the shadow clones. Suddenly, a message and an indescribable feeling of fatigue suddenly flooded into his mind. Yusuke staggered and almost knelt on the ground.

At this time, Yusuke was sweating profusely, breathing heavily, his eyelids kept fighting, and the fatigue in his eyes could not be hidden at all.

"The effect is really amazing. In just half a day, I can achieve the same effect as I achieved in a week before. But this kind of fatigue is not something that ordinary people can bear. I am so exhausted after only five shadow clones. I really don’t know how Naruto can bear hundreds of shadow clones practicing together."

You should know that after six years of high-intensity training, Yusuke's chakra feeds back to the body and spirit, which is much stronger than ordinary ninjas. But these five shadow clones almost made Yusuke faint. You can imagine the amazing recovery effect that the Nine-Tail brings to Naruto.

After returning home and sleeping for an afternoon, Yusuke was finally awakened by hunger and got up and walked towards the Chinese Pavilion.

Entering his private room, Yusuke found that Kushina was having dinner with a beautiful woman with long black hair and a quiet temperament. He immediately recognized her. It was Uchiha Mikoto.

Seeing Yusuke coming in, Kushina happily waved and shouted:"Yusuke, you are a little late today!" At the same time, she pulled Uchiha Mikoto next to her and continued:"Mikoto, this is my younger brother Akimichi Yusuke"

"Yusuke, this is my best friend Uchiha Mikoto."

Yusuke pulled out a chair and sat down, nodded to Mikoto:"Hello, Mikoto!"

Mikoto also nodded and said politely:"Hello, Yusuke brother!"'lXiongsuke sat down and looked at Kushina solemnly, and said seriously:"Sister Kushina, I have succeeded in my practice!"

""Wow!"

The plates on the table were overturned to the ground. Kushina, who had already stood up, looked at Yusuke blankly and said in a deep voice:"Did it really succeed?"

"Really!"

Yusuke nodded with a smile. Kushina contributed a lot to his success. Many times, she even stayed up all night to help Yusuke perfect the sealing technique.

Thinking of the theory that Yusuke told her, Kushina said excitedly:"Does that mean that the theory you gave me can also be practiced!"

"Well, it is theoretically possible!"

"Well, I'll try it when I get back!"

Mikoto just listened quietly without asking too many questions.

……