The next day, early in the morning, the rope tree was at home.

Kirito got up at six o'clock on time, he quickly changed his clothes and finished washing, and then sat quietly in the quiet courtyard, concentrating on his daily chakra refining training and natural energy absorption training, and using this method to continuously increase his upper limit of chakra amount and natural energy.

An hour later, he reopened his eyes and slapped his hand on the ground.

A large number of sealing techniques spread across the ground, and a square sealing enchantment quickly formed.

Sealing: Quartet Seal!

After completing the arrangement of the sealing enchantment, Kirito stretched out a hand, and a stream of blue chakra quickly converged on his palm at high speed, and a small chakra ball that rotated at high speed inside appeared in his palm.

Spiral pills!

Then, he began to inject natural energy into the spiral pill little by little.

In an instant, the volume of the spiral pill increased at a speed visible to the naked eye, from the original size of a ping-pong ball to the size of a volleyball, and it exuded terrifying and special chakra fluctuations.

This particular chakra is the fairy chakra.

If it weren't for the presence of the Sealing Enchantment at this time, this terrifying Immortal Chakra Fluctuation would have definitely alarmed many people.

Senfa Spiral Pill!

"It's still too slow."

Kirito sighed as he looked at the spiral pill formed by the Immortal Chakra in his hand.

He has an immortal physique, so he naturally started to focus on the immortal mode very early, and after he learned the chakra condensation method, he has actually been secretly trying to cultivate the immortal mode, but unfortunately due to the lack of his own chakra, he has been unable to do it for a long time.

It wasn't until the day he raised his Xian attribute to 5 and successfully released the Spiral Pill that things began to take a turn for the better.

Natural energy seems to be much more advanced in quality than chakra, and a little natural energy requires many times more chakra to be mixed to give birth to the fairy chakra.

The birth of the immortal mode is actually the perfect fusion of the chakra in the human body with the natural energy of the outside world, and then the immortal chakra covers the whole body, and if you want to maintain the immortal mode all the time, you need to have a large enough chakra.

Kirito's current situation is that he doesn't have enough chakra, and he can't let himself give birth to enough immortal chakra to cover his whole body.

The danger of immortal mode cultivation is that once the ninja begins to fuse the chakra and natural energy to form the immortal chakra, this process will be difficult to reverse, and the natural energy from the outside world will continue to pour in, quickly consuming the chakra in the ninja's body.

Once the chakra in the ninja's body is insufficient, the constant influx of natural energy from the outside world will pose a deadly threat to the ninja, causing the ninja to have huge side effects such as petrification, explosion and death.

Due to the immortal physique, Kirito can interrupt the influx of natural energy from the outside world anytime and anywhere, so he doesn't have to worry about the side effects of natural energy, but due to the lack of chakra in his own chakra, he can't let himself enter the immortal mode, and can only create a certain amount of immortal chakra.

And if the ninja is not able to enter the immortal mode, then the stability of the immortal chakra is seriously insufficient, and it is easy to re-decompose into chakra and natural energy, and may even explode.

This unstable immortal chakra obviously can't be used to unleash ninjutsu, and basically has little effect other than allowing him to create the Mark of the Night.

Later, he found that he could use the spiral pill outside the body to form a stable immortal chakra, which allowed the immortal chakra to be used smoothly in ninjutsu, but it could only make the spiral pill evolve into an immortal method and a spiral pill, and other ninjutsu still could not evolve into an immortal method.

However, the speed at which Senfa Spiral Pill is released is still too slow, and Kirito believes that it has not yet reached the basic requirements for being able to use it in battle.

"Take your time, it's time for breakfast."

Kirito quickly gathered his mind, then removed the seal barrier and walked to the living room.

When he came to the living room, the maid of the house had already prepared breakfast.

But there was one more person on the table today, and it was a blonde beauty with a hot body, who was none other than Tsunade, the sister of Rope Tree.

She was wearing a loose white bathrobe at this time, with a large patch of snow and snow on her neckline, no makeup, her eyes were still a little foggy, and her hair was a little messy, and she looked like she had just woken up.

"Kirito, let me introduce you, this is my sister Tsunade, she's a Konoha hero."

When Rope saw Kirito, he immediately excitedly introduced his sister to Kirito, with a proud expression on his face.

"Tsunade-sama, this is the first time we met, I'm Kirito Tosaka, and I'm currently working as a trainee medical ninja in the hospital, so please take care of me in the future."

Kirito respectfully saluted Tsunade, looked at Tsunade with a hint of adoration, and said.

Tsunade came back late at night last night, and as soon as the other party came within eleven kilometers of Konoha Hidden Village, he had already sensed the other party's soul aura, and he just pretended not to know.

When Tsunade heard Kirito's words, his big brown eyes, which were a little confused, suddenly came to his senses.

She turned her head to look at Kirito, a smile suddenly appeared on her face, and she smiled and beckoned to Kirito, "Come here, little ghost." ”

Kirito didn't know why, but he did it anyway.

Who knew that as soon as he approached Tsunade, he was wrapped around his neck by Tsunade, hugged him into his arms, and then rubbed his hair wildly with the other, and said with a smile: "Ah~, what is it called, Tsunade-sama, it's so out-of-sight, you are grandma's proud disciple, and you are also a good brother of Rope Tree, all these years, thank you for taking such care of this stupid Rope Tree, and you will call me sister like Rope Tree in the future, do you know?" ”

She has been fighting bloody battles on the front line of the Land of Rain all these years, and although she has not returned to Konoha, she has been in correspondence with Mito and Rope Tree, and naturally she has learned a lot about Kirito, and knows that Mito and Rope Tree like Kirito very much, and it can be said that they treat him as family.

And Kirito also helped the rope tree a lot, and it is with Kiriren that the rope tree will grow so fast.

In fact, when she came back, she found that the rope tree was no less powerful than the special ninja, which really shocked her.

She is a person who has experienced war, and she knows very well how important strength is in this troubled world, and she also knows how dangerous the rope tree is in this troubled world.

Therefore, she learned from Rope Tree that Kirito often trained with him, and also guided him to train, teaching him his own ninjutsu, and she couldn't become so strong without Kirito's help, and she was grateful to Kirito from the bottom of her heart.

"Woo woo woo~"

Tsunade's strength was so great that Kirito was powerless to resist at all, and he was overwhelmed at this time, unable to appreciate this wonderful attack in detail.

"Sister, stop it, Kirito is about to be cut off by you."

Rope tree knew how terrible his sister's facial cleanser attack was, he watched Kirito be treated like this, and deliberately paused, and waited for Kirito to die before he hurriedly persuaded him.

"Ah, I'm sorry, I'm a little too excited."

"It's okay, Tsunade-sama, I'm fine."

Kirito gasped for breath and looked at Tsunade's chest with palpitations and said, he felt that if the rope tree said any slower, he would suffocate.

But as soon as he said this, he regretted it, and he suddenly found that Tsunade in front of him was looking at him with a smile.

The expression of the nuclear goodness, Kirito had seen it with Mito.

He immediately changed his words cleverly: "Sister Tsunade, let's eat, I'm hungry." ”

"Okay, Kirito, let's have dinner together."

With a sound, Tsunade's sister immediately asked Tsunade to put away his nuclear expression, and she gently touched Kirito's head and smiled with satisfaction.

Suddenly there was a cheap sister.,This sister is still Tsunade.,Kirito's heart felt weird at first.。

However, he could feel the pure kindness from Tsunade, and the other party, like many people in the Senju clan, gave him a very sunny and friendly feeling.

To be honest, it's actually really good to have such a beautiful and powerful sister, at least he can prostitute all kinds of advanced medical knowledge from Tsunade openly in the future.

He believes that with the teachings of Tsunade, a top medical ninja, his medical knowledge will definitely usher in another leap, and maybe the cell fusion technology that has been bothering him will soon have a new breakthrough.

As soon as he thought of this, Kirito unconsciously showed a smile on his face when he ate.