Naruto: The will of fire has nothing to do with my Uchiha

It's just absorbing chakra. It's not as slow as recuperating the body when you're sick. Instead, it's the overworked mental state that takes time to slowly recover.

Under the Hokage's trick, Shizune slept for a whole day. The original plan was to use the next two days to replenish chakra.

When she woke up, Tsunade was still reviewing documents at her workstation far away. Except that the sky outside the window was already dark, everything else seemed to be exactly the same as before she lay down. Nothing had changed.

After Shizune excused herself and freshened up, she found two more people in the office.

"Naruto, Sasuke?"

"Master asked me to come back to help. After all, the Yin Seal this time is a modified version."

Sasuke had no intention of taking over everything;

"I have enough control over the Yin attribute chakra, but the full chakra reserve pool will cause more interference than the initial drawing of the sealing circle. Senior sister has experienced it once, so just go all out."

"Sasuke said your chakra reserves are still a little low, so I'm here to help."

"thank you all!"

The "formation" of the Yin seal will not cause much movement. It is a ritual performed in the spiritual space. After it is completed, it is more like adding a lid to a water cup, and the chakra fluctuation will only decrease rather than increase.

In theory, there is no need to choose the location, but Tsunade is now the Hokage. It is not easy to use a quiet secret room and send ANBU to guard it. It will not cost much to be more thorough.

Shizune was surrounded by three people, and all her consciousness was guided into her mental space by Sasuke.

"Excuse me."

"Senior Shizune's mental space turns out to be like this!"

Naruto's mental space is a large cage, room, corridor and fox, while Shizune's mental space is a huge inverted square pyramid pool with light and a small pool connected in series by a slender ditch. The weak water flow makes no sound. It gathered from the unknown darkness and continuously injected chakra into the large pool.

"It's amazing! This is the Yin Seal."

"Hey Sasuke, when can I go to your mental space and take a look?"

"Not today, let's talk about it later."

"I should pass on the chakra first. What should I do?"

"Inject chakra directly into that pool? The chakra I gave you before was delivered outside the mental space."

Tsunade knew that Sasuke was confident, but there was no need to take risks on such details.

"To be on the safe side, it's better to come from outside."

Without wasting any time, Naruto formed the Ren Seal and mobilized his chakra.

As Naruto's yellow chakra poured in, Shizune's mental space lit up in all directions. The water flows downwards, and chakra naturally gathers towards the end of the long channel of the Yin seal. After swallowing Shizune's own chakra, it pours into the two pools in turn.

The original ditch was completely full for the first time since it was built.

"This is such a powerful chakra."

"Naruto, pay attention to efficiency and slow down a little. Shizune tries to control the flow rate. If you can't control the surging chakra after opening the Yin Seal, there will be a lot of waste. Let's just treat it as a drill."

"It's Hokage-sama."

After realizing that Shizune was just an ordinary person, Naruto didn't say much and lowered the transmission rate.

The largest reservoir was obviously only a small distance away from the water level. Even though the chakra was injected into it, it was almost impossible to see the liquid level rising. It took more than two hours for just such a small distance. This was more than two hours in which Naruto devoted all his energy to refining chakra.

"full."

"It's still close to one million taels."

Naruto was a little tired, but he still had some energy left, and three energy cubes were saved.

"We'll talk about it later. Does Shizune need to rest?"

"Need not."

"Then I'll start!"

After muting a string of seals, each of the four triangular faces of the huge square prism separated part of the formation and turned it upward, covering the entire pool surface. He concentrated his mental power and began to carve a huge sealing circle in mid-air. I have written silently countless times in reality, and it is smooth and precise. However, my energy is quickly drained from one stroke to another.

Although the adjusted Yin Seal has higher strength and can hold more capacity, the more content of the formation is depicted, the consumption will naturally increase. It cannot be taken for granted that it can save materials while also increasing the safety factor. It's a bit unexpected and people are gone immediately, so I can't afford to gamble.

Shizune's Yin Seal Pond already has a standard capacity within its capabilities, but the complexity of the formation has not decreased along with the capacity. She didn't completely stand by while Naruto helped replenish chakra. She was not in a full-spirited state right now.

I was a little worried, but I could only bite the bullet and continue.

All four seams have individual seals, and it has been ten minutes and still not finished.

Twenty minutes passed, and the bottom seal was completed. In addition, there was also an overall large seal and control lock.

After nearly an hour, I actually persevered. The "Yin Seal" that I had struggled for several years had failed.

"Tsunade-sama!"

Tsunade nodded in approval, and after forming the seal of Shizune, she gave a low drink,

"seal up!"

The array of spells suspended in mid-air landed on the chakra reservoir one after another, and the complicated words and symbols were condensed into simple thick lines.

The Yin seal is completed. Everyone breathed a sigh of relief,

"Congratulations!"

"Can Shizune-senpai be able to use Baihao's Jutsu like Granny Tsunade?"

"Since I never thought that I could practice the Yin Seal, I have to train specifically before I can use it."

"Ah, yes, you still have to learn. In addition to Baihao, you also have to keep up with the other ninjutsu that are included in the Yin Seal. There is no pressure on chakra consumption. Take your time before the war."

"Senior sister doesn't have the strong resilience of the Thousand Hands clan. Even if you learn the art of hundreds of heroes, don't rush forward on the battlefield."

"Of course, I would have been in the medical unit at the rear."

Not in a hurry to leave, Tsunade and Sasuke floated around the Yin Seal to do a final inspection. Shizune came over to cooperate with the "recording", and of course Naruto also joined in the fun.

For practitioners who do not have the limit of blood succession, the Yin Seal has a significant burden. It is difficult for ninjas to form formations on this ninjutsu, let alone improve and optimize it. Nowadays, almost all people who practice this ninjutsu are here. Yes, every successful person is a rare case.

After a long time, leaving the mental space, Shizune's forehead already had the same diamond-shaped mark as Tsunade's.

"Sasuke, how did you cover up the Yin seal?"

"It's just an improved partial transformation technique. Just write a short section of the technique to keep it stable."

After speaking, Sasuke spread out his hands, and a string of techniques appeared between his palms, then changed, and finally was thrown to Shizune, which was recorded in her mental space.

"Just press this technique around the mark."

"Really, I don't know why you all want to hide the Yin Seal!"

Seeing this, Tsunade felt that her two apprentices were a bit dissatisfied with her behavior of looking after her housework, which was somewhat displeasing. Shizune quickly explained,

"After all, I'm not a very powerful ninja. If the Yin Seal is revealed again, it will be really dangerous during war."

This is the reason. Of course, Tsunade only complained a little.

"Everyone! To celebrate Shizune-senpai's mastery of the Yin Seal, let's go eat ramen!"

Naruto was extremely hungry after working hard and needed to replenish carbohydrates. He was a big consumer of chakra, and everyone here was in a similar situation. Go to bed after eating a full meal, which is conducive to digestion and recovery.

"Okay, thank you all for your help. I'm treating you today."

"Look at the time. Are you celebrating or eating ramen?"

While waiting for Shizune, Naruto had already taken him to have a meal of ramen, but here comes...

"Yakiniku Q is only open until 10 o'clock and then closes. Only Ichiraku Ramen is open at night. You can ask the boss to make yakiniku ramen."

"The boss of Handmade said that investment should not be wasted and the freezer should be filled as soon as possible, so there is a high probability that a lot of meat will be prepared!"

Ichiraku Ramen at four o'clock in the morning, the lights are bright.