A person in Japan, a sword that soars to immortality.

boom!

The moment the tip of the Futsu-no-Mitama sword left its sheath, a dazzling white light appeared instantly. Then, Tai turned to face Yamakage without even glancing at him, and swung his hand.

A massive, arc-shaped sword aura, radiating a sharpness capable of cutting through everything, cleaved through the ground and hurtled rapidly toward the mountain shadow.

The latter felt the world darken, and only a white arc of light that stretched to the heavens and the earth magnified in his eyes.

"wake up!"

At the critical moment, a voice suddenly rang in his mind. At the same time, countless jet-black vines with a metallic sheen shot out from the ground and blocked the mountain shadow.

"Unmoving as a mountain!"

The confusion in Shan Ying's eyes dissipated, and he regained his senses. He quickly formed hand seals, and then a beam of earthy yellow light swept over his entire body, instantly making his originally gray rocky skin tough.

boom......

The crackling sounds of objects falling were incessant. After the dust settled, a ninja dressed the same as the Yamakage, with his straw hat blown off, skin as white as tree bark, short in stature, and a cloak with the character "林" (forest) printed on it, stood beside the Yamakage.

Tapping.

A series of chaotic footsteps sounded as more than twenty ninjas, armed with kunai, katanas, and grappling hooks, rushed toward Taiichi, gradually forming an encirclement.

But at this moment, Taiyi lowered his head and gently placed his hand on Shuxian's shoulder, first stopping him from getting up, and then a light blue aura began to flow into his body.

"This, this is!"

Shu Xian suddenly looked up, staring at Taiyi in disbelief, but Taiyi only responded with a faint smile.

"Check on the others and give them these pills. Oh, right, there's none for Genji."

Taiyi patted Shugen on the shoulder and, as he walked forward, casually took out a small bottle from his pocket and tossed it to Shugen with his back turned.

Among the Yamada family members, there were those who disliked him, those who admired him, those who were jealous of him, and those who were in love with him...

But their house name is the same: Yamada Asaemon!

So no matter how much commotion there is, it's all just family members doing things behind closed doors.

As a candidate to succeed Taiichi as the head of the Yamada family, Wei Shan, realizing he was no match for Taiichi in terms of martial prowess, actively contacted his biological father and started a business.

After being defeated by himself, Shu Xian strives to improve himself and continuously makes breakthroughs on the path of martial arts.

"Therefore, the Yamada family can be taught a lesson by me..."

"Anyone who touches this will die!"

ha?

Just as Shugen was about to put the pill into the wounded soldier's mouth, his eye twitched involuntarily after hearing what Taiichi said.

What do you mean by "being lectured by you"? Have I ever been lectured by you?

The other samurai of the Yamada family had also lost their earlier tension. Even though they were lying on the ground, wincing in pain, they just pursed their lips and rolled their eyes, just like Shujian.

After calming everyone down, Taiyi walked to a spot not far from Shanying and Linying, stood with his sword on his back, and squinted as he quietly observed them.

The first thing to check is the data from Shanying.

Name: Mochizuki Yamanosuke

Age: 31

【Lifespan: 68】

[Essence: 2182.5]

Qi and Blood: 2411.3

【God Soul: 63.7】

He nodded, then turned to Lin Ying.

Name: Mochizuki Kikuro

Age: 35

【Lifespan: 72】

[Essence: 2488.1]

Qi and Blood: 1837.8

【God Soul: 72.5】

"Its speed is like the wind, its stillness like the forest, its aggression like fire, and its immovability like a mountain."

"These sixteen characters are the contents of the banner of Takeda Shingen's army, the Tiger of Kai."

"So, you're the Mountain Shadow, this is the Forest Shadow, then there's also the Wind Shadow, and... the Hokage, right?"

As Taiichi finished speaking, he shook his head, his lips twitching involuntarily. He suddenly wondered if some of these ninjas from Nezu had also traveled from another time.

He also confirmed that his previous guess was correct.

That is, these Nezu ninjas are indeed no less powerful than Upper Moon demons.

At least for Gyutaro, facing them would only result in him getting beaten to a pulp right away.

"It seems that Lord Taiyi is not only unparalleled in swordsmanship, but also extremely learned."

Lin Ying stood with her hands behind her back, her long, narrow pupils, like a cat's eyes, staring intently at Taiyi as she spoke.

On the other side, Shan Ying was kneeling on one knee, with bright red blood flowing continuously from the huge wound on his chest, dripping onto the ground.

"Hehehe..." Shan Ying ran his fingers across his chest, then stuck out his tongue and licked it, glancing sideways at Taiyi and grinning:

"Yamada Asaemon Taichi, your sword did not kill me."

hehe......

Taiyi chuckled and shook his head, a fleeting tri-colored light flashing in his eyes. He then grinned and said softly:

"Because I suddenly thought of something."

"Killing you like this would be a bit unfair."

"Isn't there the Elixir of Immortality? Drink it, then reveal your full glory..."

"Only in this way will Futsu-no-Mitama not blame me for bullying the weak after he dies by my hand."

With a sideways swing of the sword, a tree on one side was instantly cut in half, until the sword energy disappeared into the mountain, leaving a deep sword mark.

Clang......

As if in response to Taiichi's words, Futsu-no-Mitama spontaneously emitted a white light flash on its blade and hummed softly.

"Transformation Water? So Lord Taiichi actually knows about this. However, in our Nezu, we prefer to call it the Moon's Tears!"

Gurgling.

Almost simultaneously, Lin Ying and Shan Ying both pulled out a small bottle from their pockets, tilted their heads back, and drank it all in one gulp.

With the sound of the bottle shattering, the two ninjas began to transform. The Mountain Shadow grew taller and taller until he was over 3 meters tall, with his explosive muscles covered by thick rock armor.

Lin Ying's profile was elongated, transforming her into a lizard-like figure with a hunched back and her lower body deeply embedded in the soil like plant roots.

"Yes, just as I thought, it is the power of Yin that, after combining with the power of Yang, produces the Qi of One Transformation into Myriad Laws."

Taiyi's eyes flashed, and he released his divine sense to the fullest extent to sense the changes in the opponent's qi. He immediately realized the key to it.

In this world of Qi, a single type of Qi, although capable of causing damage, manifests itself in a primitive and fixed manner.

Like the celestial beings of Paradise Island, they cultivate the Yang energy, the ultimate Yang, so their only means of attack is simple Yang attribute energy attacks.

The celestial beings' ghost corpse dissolution form is because they are plants themselves. After completely releasing their yang attributes, a process of quantitative change leading to qualitative change occurs, thereby transforming their life form. However, this is not "magic".

The Sakura Dragon of Fountainhead Palace represents the ultimate Yin, and blood is also Yin. Therefore, by using the power of Yin, it can change the blood, thereby causing physical abnormalities and generating a deformed immortal power.

Examples include the King Fish, insect possession, and the so-called Asura.

As for Muzan and his demons, they can use Blood Demon Art because they have eaten people.

The Great Dao is one, which divides into Yin and Yang. Yin and Yang give birth to Heaven and Earth, Heaven and Earth give birth to our parents, and our parents give birth to us.

When a baby is in the womb, its nine orifices are closed and its primordial energy has not yet dissipated. Once it is born, its hands open on their own, and the energy dissipates into its nine orifices.

Therefore, the human body inherently contains primordial energy, but it cannot refine it itself. However, after being consumed by a ghost, the ghost can refine it.

As for these Nezu ninjas, because they know how to cultivate qi, they have a large amount of yang qi in their bodies that they can mobilize.

Furthermore, having now consumed the Transformation Water derived from the power of the Sakura Dragon, the Yin and Yang have combined, and the Qi has returned to its original state, generating the primordial Qi once again, which can then transform into myriad forms.

To others, the forms of the two ninjas, Yamakage and Rinkage, resembled legendary demons. Anyone who was targeted by them would feel their scalp tingle and their body tremble with cold.

But in Taiyi's eyes...

"It's so beautiful! This is the circulation of Qi. I can see the unity of Yin and Yang!"

Taiyi stared intently at the two people opposite him, his mouth stretching wider and wider until he finally burst into laughter.

"Hahaha! My theory is correct, my conjecture is correct!"

Once the five elements are gathered and the Five Elements Sun Refinement is completed, one can generate the Yang Spirit.

Then, by slaying the external demons and ghosts, namely Muzan and Sakura Ryu, and refining them, one can achieve the unity of Yin and Yang and return to the innate state.

As the saying goes, going with the flow makes you human, going against the flow makes you an immortal!

Clang......

Taiyi suddenly composed himself and became calm again. He then raised his sword in front of him and gently stroked the blade with two fingers, eliciting soft humming sounds.

Looking at Shan Ying and Lin Ying, he said calmly:

"Come on, circulate your primordial energy with all your might! Hold on a little longer, or you two will die before I finish my research!"