Konoha: Starting with Sage Mode.

Chapter 100 The Teacher's Last Gift

When the Yin Seal mark was completed, Kirito instantly felt the pressure that had prevented him from using his chakra at full power due to maintaining the Yin Seal disappear instantly, and his chakra even experienced a surge.

This is because the chakra in the Yin Seal is fully charged. It begins to output chakra at low power to Kirito, its master, indirectly increasing the normal amount of chakra in his body.

The feedback from a Yin Seal that accumulates Tailed Beast-level chakra is undoubtedly astonishing. Even if it's just a little bit, Kirito feels that his chakra has indirectly increased by two or three levels, reaching the level of an elite Chunin.

For a moment, Kirito felt his whole body filled with power.

The Yin Seal is a secret technique developed by the Uzumaki clan. Its main function is to store chakra. It is not the Hundred Healings Seal that Tsunade developed later based on the Yin Seal. Therefore, it does not have the ability to instantly heal, enhance attacks, or increase speed. However, it does have the function of preserving youth, improving physical functions, and keeping the body in its best condition.

This is all the function of the Yin Seal that Mito taught him.

Kirito estimates that the Hundred Healings Seal developed by Tsunade also needs to be related to her family's secret techniques, Super Strength Fist and Palm Healing Technique. It is very likely that she combined the Yin Seal, Super Strength Fist and Palm Healing Technique together, so that the Hundred Healings Seal has the effects of all three.

"The Yin Seal, this brat actually mastered this sealing technique first. What an amazing brat."

Tsunade looked at the blue diamond-shaped mark on Kirito's forehead and thought to herself with admiration.

The difficulty in mastering the Yin Seal lies mainly in having extremely strong chakra control, which she already possesses; all she needs to do now is brush up on her knowledge of sealing techniques.

Since stepping onto the battlefield, she discovered that her once-proud chakra reserves were far from sufficient to heal all her teammates. She then remembered this sealing technique that could provide a large amount of chakra and had been trying to master it. However, she was constantly fighting and using the Palm Healing Technique to heal her comrades every day, so she simply didn't have the time or enough chakra to master the Yin Seal.

I finally made it back to Konoha this time, and I'm planning to learn this sealing technique.

She never expected that before she could learn it, a younger kid had already learned it before her.

However, she felt no jealousy, only admiration and joy, because her grandmother's sealing technique had been passed down to a successor.

The younger generation of Konoha has done a good job of passing on the knowledge of their predecessors, just like the Will of Fire, which is something to be very happy about.

"Mito-sensei, that's enough, please stop now."

Kirito realized that he had successfully mastered the Yin Seal, but Mito did not stop the chakra transfer and immediately said something.

"You've succeeded? Then let's cultivate another one, but this one can't be as big as the previous one."

Mito smiled slightly, looking at Kirito with her bright eyes.

Kirito was shocked by Mito's words. Looking into Mito's eyes, he felt as if all his secrets had been seen through.

Before he could speak, Mito said to the others in the room, "You all should leave. Let Kirito and I be alone for a while."

Upon hearing Mito's words, Momoka wanted to say something, but after being glared at by Mito, she deflated and obediently went out.

If Momoka, the Hokage's advisor, was like this, what could the others say? They all obediently went out and waited outside.

Nawaki tried to struggle, but Tsunade lifted him out with one hand.

Once everyone else had left the room, Mito casually set up a screen-like barrier to prevent external perception.

Upon seeing this, Kirito smiled wryly and said, "Teacher, when did you discover this?"

The next moment, a head exactly like Kirito's grew out of Kirito's shoulder; it was a White Zetsu clone.

"Hmph, I'm your teacher. You're a hundred years away from keeping your little secret from me."

Mito glanced at the head on her shoulder and said smugly, but did not ask Kirito about the White Zetsu clone.

She didn't actually know what a White Zetsu clone was. She only vaguely sensed that there was another person inside Kirito through the Nine-Tails' ability to perceive good and evil. She didn't expect it to be true. Her disciple was even more extraordinary than she had imagined.

That's good. With him protecting Konoha and Senju, things won't get too bad even if they get worse in the future.

She knew her disciple's personality very well; he was someone who would never suffer a loss. The Third Hokage and Danzo had better not provoke him, or they would definitely suffer the consequences.

"Teacher, this is me."

Mito didn't ask about the origins of the White Zetsu clone, but Kirito didn't intend to continue hiding it from his mentor who had been so kind to him, and wanted to explain the origins of the White Zetsu clone.

Now that the White Zetsu clones have been discovered, there's really no point in hiding it anymore.

He believed that Mito wouldn't tell anyone else about the secret of the White Zetsu clones, otherwise she wouldn't have let everyone else out just now.

"Alright, I'm about to die. I don't want to hear your little secrets. You can keep them to yourself. Hurry up, my chakra is running low, and that little fox inside me is getting restless again. My ears are getting tired."

Mito shook her head, indicating she didn't intend to listen to Kirito's explanation.

The fewer people who know a secret, the better. She doesn't have a penchant for prying into other people's secrets. All she needs to know is that Kirito won't harm her or the people in the village.

"Let's forget about transferring chakra. You're so weak right now, and if you don't have enough chakra, you won't be able to suppress the Nine-Tails."

Kirito, hearing that Kurama was about to cause trouble again, quickly tried to dissuade him.

"Don't worry, I gave that little fox a good talking-to while I was asleep. The reason it was able to break free of the seal before was because the seal had been in place for a long time and it had secretly used the Nine-Tails' chakra to erode part of it. I have now put new chains on it, so it can't get out no matter how much it struggles for the time being."

Upon hearing this, Mito said confidently.

At this moment, her prowess as a top-tier sealing ninja was on full display.

"Teacher is indeed the most powerful sealing ninja in the world."

Kirito promptly flattered him.

Mito accepted it readily, a happy expression on her face, then she said with a straight face, "Alright, stop flattering me. Quickly gather your chakra and train for the Yin Seal. I'm going to sleep for a while longer; I'm a little tired."

Kirito immediately suppressed his smile, forced back his tears, closed his eyes, and focused on assisting the White Zetsu clone in cultivating the Yin Seal.

Having successfully cultivated the Yin Seal once before, cultivating it again was naturally a piece of cake.

He quickly created a chakra pool on the White Zetsu clone, constructed from the Yin Seal. This pool was much smaller than Kirito's original body's.

Mito's chakra reserves are truly impressive, definitely reaching the level of a tailed beast. In addition, she possesses the Yin Seal, which also contains tailed beast-level chakra.

As long as Kirito stops being greedy and creates a Yin Seal chakra pool that can accumulate Tailed Beast-level chakra, it's no joke that Kirito's White Zetsu clone can quickly cultivate a Yin Seal; we have more than enough confidence to do so.

About half an hour later, a blue Yin seal mark also appeared between the eyebrows of the White Zetsu clone.

"Kirito, I'm entrusting Kushina to you. Please protect this child for me. Konoha owes her too much."

Mito said wearily, then slowly closed her eyes, using the last of her strength to focus on suppressing the Nine-Tails within her.

"Yes, teacher, please rest assured and leave it to me. I will safely seal the Nine-Tails into Kushina's body. I will become Kushina's pillar and protect her until the moment I die."

Kirito carefully helped Mito lie down, covered her with a blanket, and solemnly promised her.

If he hadn't successfully cultivated the Yin Seal, he certainly wouldn't have had the confidence to make such a promise. But now it's different. He has successfully cultivated the Yin Seal, and there is also a Yin Seal on Bai Jue's clone.

With the chakra accumulated from the dual Yin Seals, he is now confident that he can temporarily suppress the Nine-Tails using his improved Adamantine Sealing Technique on his own.

Sage Mode is also within reach.

This confidence stemmed from the final gift his beloved teacher gave him.

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(End of this chapter)