In Konoha, you call this a ninja tool?

It just so happens that Tianyu has been busy collecting materials recently.

Hearing his dad's promise, he immediately burst into laughter.

Soon, Tianxiong regretted the boast he had just made.

Because his beloved eldest son immediately took out a small stack of scrolls filled with writing from the room and handed them to him.

Why not a single scroll, but a stack of scrolls?

Because one scroll simply isn't enough to write on!

When Tianxiong opened those scrolls,

Seeing the densely packed records on the document, he almost fainted!

When he went out to buy the materials with the list, he almost cried!

In order to gather these materials,

He actually spent almost half of their family's savings!

If it weren't for Tianyu securing that deal with the Hokage, this purchase of materials would have been enough to bankrupt Tianyu's weapons business!

However, despite the considerable financial pain,

However, he still bought all the materials for Tianyu with tears in his eyes, which can be considered as giving his son his full support.

"Thanks, Dad!"

Looking at the several truckloads of materials and his father, who looked much more haggard, Tianyu laughed and went up to give him a big hug.

Tianxiong was moved to tears: It was all worth it...

After collecting all the materials,

Tianyu locked himself in his room alone.

Every day, he went out of the village with Teacher Matt Kai to carry out missions.

Both parents were busy preparing for the big business deal they were taking over from the Hokage; they were extremely busy.

During this time, no one bothered him.

So Tianyu closed his eyes as well.

He began this stage of his spiritual practice.

His system has recently acquired several high-quality blueprints, waiting for him to create them!

Name: Chakra Crystal Forging Blueprint

Forging difficulty: ***

Skill: A one-time use item that can be used to store chakra. Once the crystal is crushed, the stored chakra is automatically absorbed.

This time, when Tenyu fought against Yamato last time,

The system rewards you with blueprints after you complete the task of absorbing Wood Release chakra.

It's a crystal that can store chakra!

The crucial role of chakra in battle is self-evident.

Most ninjas cannot freely use ninjutsu in battle due to the limitations of their own chakra. Therefore, Naruto's Uzumaki clan physique combined with the Nine-Tails' chakra becomes the protagonist's overpowered weapon.

After Tianyu obtained the crystal stone,

There's no need to worry about your chakra being depleted by releasing ninjutsu.

As long as there are enough of these crystals to continuously replenish one's chakra... one will have the ability to fight for a long time in battle!

This is a really good thing!

Although the forging difficulty is not high, it is only a third-tier ninja tool.

The required materials are not too many, only a dozen or so.

However, this type of crystal is a disposable item.

Tianyu believes that

I need a one-time use one.

We need to create a lot of crystals as a backup!

Let's set a small goal for forging first—one hundred crystals!

Of course, with so many crystals, Tianyu doesn't need to spend time forging them one by one.

At this point, when he upgraded from a novice blacksmith to an intermediate blacksmith, the benefits of the blacksmithing table rewarded by the system became apparent.

He only needs to spend two or three hours.

A chakra crystal has been successfully forged into a finished product.

The forging table can replicate his previous forging process. He only needs to put in the corresponding materials, and the forging table will complete the process automatically!

A few hours later,

Tianyu held a bright blue crystal core in his hand.

"Forging successful!"

Chakra Crystal Forging with a Three-Star Difficulty

For Tianyu now, apart from taking a little time, there is no difficulty.

Looking at the azure blue crystal core in his hand, which resembled a sapphire, Tianyu tried to inject his chakra into it.

Crystallized stones themselves do not possess chakra.

It only has the function of storing chakra.

It functions similarly to a disposable power bank.

Before using a crystal, the user must fill it with their own chakra.

"It really can store chakra!"

Tianyu's eyes lit up instantly.

Then he increased the input of his chakra.

After the blue chakra was infused into the crystal,

It immediately transformed into a dark, cotton-like shape, filling the inside of the crystal and making the crystal's color even darker than before.

Tenyu's current chakra is limited by his age.

Therefore, the amount of chakra is not very large.

His current chakra level is about the same as that of an ordinary Jonin.

If it's a ninjutsu with A-rank destructive power, it can only be used about three times.

Therefore, in battle, he used techniques such as the Eight Gates Formation.

It wasn't entirely about improving one's physical skills.

More importantly, it was to increase his chakra reserves.

He can unleash a massive amount of chakra within an extremely short period of time to use ninjutsu.

With this chakra crystal,

Tianyu is confident.

If I were to fight Yamato again,

He doesn't even need to open the Eight Gates Formation.

With the ninja tools I made myself, I could easily kill that guy!

Chapter 60 Forging a Zanpakuto

Tenmuro used his chakra

After being injected little by little into the crystal,

The color of the crystal became deeper, like that of a sapphire.

It wasn't until Tenyu's chakra was almost completely depleted, leaving only one or two tenths, that Tenyu finally felt the chakra crystal in his hand being fully filled.

It can actually store almost the amount of chakra of a Jonin-level ninja!

Tianyu felt a sense of surprise and delight.

In an instant, he thought of a ninjutsu: Tsunade's Yin Seal.

The Yin Seal involves accumulating chakra on the forehead, forming a diamond-shaped mark. When needed, the seal is released using the release ninjutsu "Yin Seal Release," unleashing a large amount of chakra.

The Yin Seal is a prerequisite for Tsunade to release the forbidden medical ninjutsu Creation Rebirth and Hundred Healings Technique, providing a large amount of chakra for these two forbidden techniques.

Yin Seal is an S-rank support-type ninjutsu!

The chakra crystal in Tianyu's hand clearly achieved the same effect as the Yin Seal with ease!

Moreover, it is more convenient and easy to use!

Tenyu placed the finished chakra crystal into the forging table.

Then, the other materials needed to forge the chakra crystal were also put into it.

Inside the forging table, following the forging method used by Tenyu before, the chakra crystal began to be forged automatically.

Tianyu was already sitting cross-legged to the side.

He closed his eyes and began to process another forging blueprint in his mind.

A six-star difficulty Zanpakuto blueprint—Daiguren Hyōrinmaru!

After Tianyu had memorized every detail of the forging process, he suddenly opened his eyes.

Then he strode to the forging table and picked up the hammer in his hand.

The flames were lit, and the forging table turned red-hot from the intense heat.