In the courtyard of the Mansion of a Thousand Hands.

In order to get a glimpse of the playful sealing teaching aid in Kushina's mouth, Mito got up and walked to the stone table.

Kushina breathed a sigh of relief when she saw this, and she also followed, opening the box and showing it to Grandma Mito.

In addition to stacks of cards, there were also two strange machines in the box.

"Grandma, do you recognize this?"

Kushina raised her head and asked with a smug expression.

Those who don't know think that she invented these two machines.

Mito gave Kushina a slight glance and reached out to pick up one of the machines to examine it.

The slender onion fingers gently caressed the somewhat rough wooden shell of the machine, from the disc-shaped core to the half-moon-shaped plate extending from the disc, and even the slightly recessed square card slot on it......

At the same time, strands of chakra threads silently seeped from her fingertips, digging through tiny gaps in the machine's casing to dig its secrets.

Soon, Mito's two slender moth eyebrows were slightly raised, and it was obvious that something had been gained.

By probing with a chakra thread, she was the first to determine what materials were used inside the machine.

However, there is nothing noteworthy, it is all ordinary chakra conduction materials.

Even the main material is produced by their Qianshou family, a special oak with good chakra conductivity.

What these materials have in common is that they are inexpensive and durable, and can be used over and over again.

However, since it cannot afford an excessively large chakra, the upper limit is not high, so the price is also relatively cheap.

Therefore, it is generally used to make simple or temporary enchantment arrays.

Of course, the cheap price is compared to other chakra conduction materials, and it is still very valuable for ordinary ninjas.

So these materials are not yet worth Mito's attention.

What really surprised Mito was that at this time, these ordinary materials were densely carved with various tiny rune spells.

The sheer number of runes made the well-informed Mito a little frightened, and he felt that the machines in his hands were a little hot.

Is this really just a teaching aid, not some ancient weapon that destroys the world?

You must know that when she assisted her brother-in-law in building the Sword of Thor, she didn't use so many rune spells.

And although they are all the simplest and most basic rune spells, with the huge number and complex arrangement order, the formation of the spell circuit has become extremely difficult, so that as a seal master, she can't fully understand it for a while.

However, Mito quickly judged that it was not for the sake of encryption or pretending to be advanced that he was deliberately carving so many runes.

Because she felt a sense of order in these rune sequences that she had never seen before.

Which ancient school of sealings is this design idea?

Mito couldn't help but have such thoughts.

After all, the way this rune was used was completely different from the mainstream sealing technique she had learned over the years.

The sealing technique that is prevalent today takes the simplified route of combining runes and seals, and lowers the threshold for the use of seals by converting a large number of runes into the form of seals.

This is why many seals are now performed using seals.

If it weren't for the need to unleash the irreducible rune spells at the end of the spell, many sealing techniques would have looked no different from ordinary sealing ninjutsu.

This is the evolutionary direction chosen by the Sealing Technique in order to adapt to the ninja's fighting style and continue to continue.

The rune-style design on this machine is the opposite, taking the retro route of representing everything in rune-style.

And it seems that it has gone further than its predecessors on this path......

"It turns out that the road is not a dead end, ...... interesting"

Mito muttered unconsciously.

She had forgotten how long it had been since she had found sealing "interesting".

Because over the years, the sealing technique has become a part of her body's instincts, and it has become one with her.

Even if you learn new knowledge, you will find that it is actually included in your own knowledge framework, and naturally there will be no emotional fluctuations.

However, the rune technique on this machine actually made her calm heart throb a little again.

It's like going back to the good old days when I first started learning sealing, and I made new discoveries every day.

"Grandma Mito, Grandma Mito......"

Kushina, who heard Mito muttering to herself, called tentatively a few times.

It's a pity that Mito didn't pay attention to her.

At this time, she was immersed in the thrill of constantly analyzing the rune spells on this machine and constantly gaining new knowledge.

Mito, who thought she had mastered the sealing technique thoroughly, found that there was a whole new world on the other side of her research direction!

There are no words to describe the feeling.

To use the things of Xia Yan's previous life as an analogy, it is like the Pokemon gold and silver version to open up the Johto area, and when I thought that there was not much content in this game, I found that there was still a whole map of the Kanto area, and eight dojos were waiting for me to explore......

With his profound knowledge of sealing, Mito quickly saw a lot of doorways inside the machine.

However, her expression gradually became subtle as she analyzed the rune technique.

Because she found that most of the runic spells inscribed on the surface of the machine's interior were just for a simple function that she was no stranger to: chakra diversion.

The so-called chakra diversion is to use runes to make a chakra run in several lines on the material, so as to reduce the material's requirements for chakra bearing capacity.

Since this method can greatly reduce the need for materials, it is not an unusual design to be widely used.

However, the chakra diversion circuit on this machine has refreshed Mito's understanding of the concept of chakra diversion.

She had never seen so many lines separated, and at the same time, the control of each line was so detailed, and the design was outrageously cumbersome, as if it had to squeeze every trace of performance out of these materials.

To Mito's surprise, the chakra diversion design on the machine was not intended to be used to perform more powerful techniques, but to reduce the wear and tear of the material during the chakra flow and extend the life of the machine.

In addition to the fact that the materials used in this machine itself are cheap and durable......

Mito couldn't help but think:

Isn't the designer of this machine planning to pass on this thing as a family heirloom from generation to generation?

Otherwise, it would not have been so frenzied to improve its durability.

Even if the major ninja clans are preparing for the clan land enchantment that has been passed down from generation to generation, they haven't done it to this point!

After all, the more rune spells, the greater the chance of problems, and the gains outweigh the losses when the time comes.

Mito rubbed his temples, feeling a little incomprehensible.

She certainly couldn't understand it.

Because all this is due to the fact that Xia Yan inherited the traditional virtue of the Chinese people for 5,000 years - poverty!

Poverty sometimes limits people's imagination.

But poverty can also sometimes bring a lot of agency.

Squeezing out all the properties of the material and designing cumbersome chakra diversion lines to delay the life of the machine are just basic operations made by the poor Xia Yan in order to save money.

And this is naturally unimaginable for the princess of the Vortex clan who has been pampered since she was a child and writes a piece of rune paper and throws a sheet.

Just like the big man above, he always understands that feet are just decoration.

But Mito didn't dwell on it for long.

She decided to put aside the design and explore deeper into the machine.

However, her quest was soon stymied.

Because she found that the key parts in the depths of the machine were set up with shielding circles, and it was impossible to peek into the mysteries through chakra.

Mito was slightly stunned, then shook his head and smiled bitterly.

I was so excited that I forgot about the anti-theft design that would be found in almost all rune products.

In this way, the method of brute-force dismantling and cracking should not work.

Mito, who had been blocked from exploring, finally came back to her senses and saw Kushina, who was bored on the sidelines and didn't dare to disturb her thinking.

She thought for a moment and asked the question she wanted to know the most.

"This is what the kid named Natsuhiko did?"

Jiu Sinai was startled by her cold words, and finally eased up.

After thinking about Grandma's question just now, Jiu Sinai scratched her head and replied:

"Uh...... I didn't ask, but I guess so. ”

Mito, who didn't get a definite answer, gave Kushina an angry look.

"Look at you, you don't know anything so important, you just know how to play!"

You're really right!

Kushina couldn't refute it, so she stuck out her tongue, intending to pass the test.

Syllable!

Mito is not used to Kushina, his fingers lightly gave her a brain melon, watching Kushina cover her forehead with teary eyes, and after laughing, she couldn't help but sigh.

Thinking that it was likely that the person who built the machine was a child about Kushina's age, Mito finally felt that his time had passed.