I, Uchiha Hikaru, have joined the chat group.

Chapter 59 The Conception of the "Ten-Day Breathing Technique"

The two deals have been temporarily agreed upon.

Uchiha Hikaru thought for a moment: "By the way, Mr. Ubuyashiki. In addition to the nine Hashira present today, I would like to ask you to summon someone else... Zenitsu's master, Kuwajima Jigoro."

This person is the former Sound Hashira of the Demon Slayer Corps, and the only person in the current generation who is proficient in all six sword forms of "Thunder Breathing." To learn the complete Thunder Breathing technique, we must summon him.

Since we're on the topic, Uchiha Hikaru might as well mention it briefly:

"Kaigaku, another disciple of Kuwashima Jigoro, once brought a demon into a temple when he was young, causing the death of a child and leading to your subordinate, Himejima Gyomei, being wrongly accused of murder. If such a scoundrel is allowed to remain in the Demon Slayer Corps, he will become a menace sooner or later. I suggest you conduct a thorough investigation."

"Kaigaku...you mean that black-haired boy?"

Kagaya Ubuyashiki looked surprised; "I will send someone to investigate this matter as soon as possible. Regardless of the outcome, thank you for reminding me."

……

Starting the next day.

Bulma, accompanied by her master's wife, Ubuyashiki Amane, with her long, snow-white hair, toured the castle. Then, using her remaining free time, she examined the ores and Nichirin Blade samples that Ubuyashiki had been sending over, and modified her original laser sword.

Tanjiro and his two companions followed Shinobu Kocho to the Butterfly Mansion to receive special training from Kanao Tsuyuri and others.

—And while we're at it, let's go on a blind date. After all, Tanjiro and Inosuke both found their future wives at the Butterfly Mansion.

Uchiha Hikaru then began learning the "breathing technique".

After greeting Kagaya Ubuyashiki, Hikaru Uchiha left his main body in the room and used the demons he had captured to practice the brainwashing ability of "Eight Thousand Spears". He then created five shadow clones, who simultaneously followed four to five Hashira to learn "breathing techniques".

Rock, Flame, Wind, Water, Love, Snake, Mist, Insect, Sound...

In addition, there was the former Naruhashi, who had just been summoned by a letter from Kagaya Ubuyashiki.

There are ten breathing techniques in total.

With the Sharingan activated, there's basically no breathing technique that the Uchiha can't learn after watching it once; if there is, then watch it twice.

Then, she spent a few more days mastering the "Total Concentration - Regular Concentration" of ten breathing techniques.

The term "constant concentration" refers to the state of being able to control one's breathing with complete focus at any time, even when asleep.

After mastering this level.

Uchiha Hikaru quickly discovered a fact—

"Changzhong" seems to increase the speed of chakra extraction and provide a subtle boost to elemental techniques of the corresponding attribute.

For example, while maintaining "Flame Breathing: Normal", releasing a Fire Release ninjutsu will require less effort than before, and the power of the Fire Release will also be enhanced to a certain extent!

This was a pleasant surprise!

"The amplification effect of 'Standard Ninjutsu' is approximately between 5% and 10%. The more familiar and proficient you are with a ninjutsu, the more significant the amplification will be... As proficiency continues to increase, this number should have room for further improvement."

"Unfortunately, there are still no clues about the 'Transparent World', and these pillars know nothing about it either."

"Also, different breathing techniques cannot be mixed for the time being. If they could be combined with taijutsu from the Naruto world..."

—This is another idea of ​​Uchiha Hikaru.

She had previously read the "Book of Seals" and learned about the training method of the "Eight Gates Formation".

In her opinion, this martial art was not very suitable for her.

The first four skills are still worth practicing.

However, starting from the fifth gate, the "Eight Gates Formation" demands an almost demanding level of physical strength. Without the physical talent of Guy and Rock Lee, coupled with relentless, day-and-night training, one might never have the chance to open more than six gates in their lifetime.

In the Naruto world, there is also a taijutsu called "Seven Days Breathing Technique," created by Sunagakure. It also enhances bodily functions by adjusting breathing, and its principle is very similar to the Demon Slayer Corps' "breathing techniques." The entry requirements are relatively low, but the enhancement is no less than that of the first six gates of the "Eight Gates."

Therefore, Uchiha Hikaru was pondering whether he could develop a "Ten-Day Breathing Technique".

In principle, it should be feasible.

After all, Tanjiro once used both "Water Breathing" and "Hinokami Kagura" together, allowing the advantages of the two breathing techniques to complement each other, but he couldn't maintain it for a long time.

Therefore, once she elevates the "normal" level of these breathing techniques to a higher level, she can give it a try.

Speaking of which...

Uchiha Hikaru only now suddenly realized a problem—

In the original story, Tanjiro awakened his ancestral memories imprinted in his DNA during his life-or-death battle with Rui on Mount Spider, which allowed him to use "Hinokami Kagura: Azure Heaven," an incomplete version of "Sun Breathing." Nezuko also awakened "Blood Demon Art: Exploding Blood," a technique that allows her to burn demons with her blood, during this same battle.

But now...

Because of her intervention, Tanjiro and his sister never saw Rui, and thus missed this opportunity for growth.

This is a bit of a hassle.

Although she cosplayed Yoriichi Tsugikuni, she is not the real reincarnation of Yoriichi, and it is impossible for her to stay in the Demon Slayer world forever.

For the current Demon Slayer Corps, Tanjiro is the only one who has inherited the "Sun Breathing" technique and is the key figure in defeating Muzan. If he fails to awaken that memory for a long time... it may bring a lot of variables to the future.

"...Once things are done here, I'll give them some pointers depending on the situation."

Uchiha Hikaru thought to himself.

……

Although the lord had already spoken about Uchiha Hikaru's "talent" in advance.

However, the learning speed that Uchiha Hikaru has shown these past few days has still taken the Hashira of the Demon Slayer Corps by surprise.

Shinobu Kocho and Giyu Tomioka are starting to doubt their qualifications as Pillars.

However, after their initial surprise, Shinazugawa and Rengoku Kyojuro became excited and spent every day sparring with Uchiha Hikaru's shadow clones under the guise of exchanging ideas and seeking advice, enjoying it immensely.

Then there's Kanroji Mitsuri, the Love Pillar. She's very outgoing and often brings over plates of sakura mochi to share with Uchiha Hikaru, then talks to her for ages with an adoring expression, making Uchiha Hikaru a little uncomfortable.

It's worth mentioning that the Demon Slayer Corps members generally have a high level of swordsmanship.

Without much supernatural power to rely on, these swordsmen could only rely on honing their skills generation after generation to fight against demons, so their swordsmanship was quite remarkable. In particular, the sword techniques of the Flame, Wind, and Lightning lineages, when using equal power and speed, could even overpower Uchiha Hikaru for a short period of time.

but……

Although their swordsmanship was excellent, the next moment it would be Uchiha Hikaru's turn.

She has copied a lot of sword techniques over the past few days using her Sharingan.

There is another person worth mentioning—

Yuzui Tengen.

This former Sound Hashirama, who had once been a ninja, secretly approached Uchiha Hikaru when no one was around and asked if he could teach him a few flashy ninjutsu techniques.

(End of this chapter)