After Yan conquered Three Great Sage Regions, he teleported back to Otogakure.
He walked quickly and came quickly, and it didn't take much time at all to conquer Three Great Sage Regions.
This has also led to the current Otogakure. Although many Sound Ninja are cleaning up the ruins, they are still far from being completed.
The smell of smoke and dust is everywhere, and the pungent smell fills the air, making people feel uncomfortable.
Most of the houses collapsed and ruins can be seen everywhere.
The once prosperous village has now been reduced to ruins.
However, Orochimaru's laboratory is almost finished.
Yan came straight to the laboratory, preparing to adjust his state here and prepare for the upcoming final showdown with Otsutsuki Kaguya.
In the laboratory, the light was dim, and several oil lamps were swaying on the wall, and the light and shadow flickered, as if they would go out at any time.
There are all kinds of weird experimental equipment placed around.
Some of them even emit a cold light that reflects on the walls, making them look eerie and eerie.
Orochimaru and Kabuto have been waiting here for a long time, watching Yan return, their eyes full of awe and fear.
Yan found a relatively clean place to sit down, closed his eyes, and began to meditate and regulate his breathing.
The chakra in the body is like a rushing river, surging in the body, wave after wave, constantly washing the meridians, repairing the subtle damage suffered in the battle.
His brows were sometimes furrowed and sometimes relaxed, and the expression on his face was focused and determined, as if he was fighting against some invisible force.
Time passed slowly in this silent atmosphere.
In the laboratory, only Yan's steady breathing and the subtle sound of chakra flowing could be heard.
Orochimaru and Kabuto stood aside quietly, not even daring to breathe for fear of disturbing Yan.
After a period of recovery, Yan's breath gradually stabilized and his injuries healed.
Slowly opening his eyes, a brilliant light flashed in his eyes.
Then he got up and walked outside.
Unknowingly, I came to Training Ground of Otogakure.
The impact here is minimal.
After all, the area is open, and any gravel or other debris was quickly dealt with.
At this time, Yan suddenly discovered that Sasuke, who was holding Kusanagi Sword, was practicing alone on Training Ground.
Every time he swung the sword, it was filled with fierce momentum, cutting through the air and making a "whoosh" sound.
Sweat soaked his clothes, but it did not affect his concentration at all.
Yan approached slowly and quietly watched Sasuke practice, with a hint of approval in his eyes.
Although Sasuke in this world has wasted several years in the Ninja Academy and has not received any systematic training, his talent is still very good.
At least Orochimaru is teaching him seriously.
Even if the purpose is not pure!
Suddenly, Yan said, "Your swordsmanship has improved, but it's not enough."
Sasuke stopped what he was doing and turned to look at Yan. A hint of surprise flashed in his eyes, but it was quickly replaced by determination.
"Please give me some advice."
He knew how powerful Yan was, and also knew that the other party was Uchiha Clan, but at first the other party was not willing to teach him at all.
Now that Yan has spoken, he is naturally eager to learn more from the other party.
Yan nodded slightly and walked to Sasuke.
"Your attack is too direct and can easily be predicted by the enemy."
"In battle, you need to learn to discern the enemy's flaws while hiding your own weaknesses. Sharingan can do this very well."
As he spoke, Yan picked up a branch and waved it gently, demonstrating a simple attack action.
The movement seems slow, but it contains elusive changes, making it impossible to predict the direction of his attack.
Sasuke watched Yan's demonstration intently, clenched the sword in his hand, and then tried to imitate Yan's movements.
Yan Ze gave some random instructions to correct Sasuke's posture and method of exerting force.
Anyway, I have nothing to do, and there is still some preparation work before I can actually face Otsutsuki Kaguya.
It's better to pass the time.
"Power not only comes from muscles, but also from inner belief and control of chakra."
Yan said while injecting his chakra into Sasuke's body to let him feel the correct flow of power.
Sasuke felt the powerful and pure chakra of Yan, and was shocked in his heart.
He worked hard to adjust his condition and tried to integrate Yan's teachings into his own practice.
As his practice deepens, Sasuke's swordsmanship becomes more flexible and changeable, and his attacks contain subtle changes that are elusive.
In the process of teaching Sasuke to practice, Yan also taught him some new ninjutsu from time to time.
But to be honest, Yanhui's Five Elements Escape Techniques are really few.
His main attacks were Yin-Yang Release and Susanoo. After becoming Eternal Immortal, his main attack method became Space-Time Ninjutsu.
Except for Susanoo's bloodline power, other Sasuke may not be able to learn these things.
Simply teach Uchiha Clan all the family ninjutsu to him.
It also includes the forbidden spells 'Izanagi' and 'Izanami' as well as various usage methods and techniques related to Sharingan.
Sasuke listened very carefully.
Orochimaru couldn't teach him all these contents, and he didn't know where to learn them!
In addition, Yan also taught Sasuke some basic principles of Space-Time Ninjutsu.
"The key to Space-Time Ninjutsu is the perception and control of space. You must feel the distortion and fluctuation of space with your heart."
While explaining, he tapped lightly with his finger, and the space around him instantly distorted, forming a small Uzumaki.
"Even if you can't learn this kind of thing, you still need to know it to avoid encountering a ninja who is good at this type of thing."
Sasuke listened quietly, his eyes focused and serious, without any slack.
Because he knew that what the other party said would be of vital significance to his future growth and fighting.
"Another thing to note is that ninjas who know Space-Time Ninjutsu all have limitations."
At this time, Yan changed the subject and his tone became deeper.
"This limitation is not absolute, but it is a characteristic shared by most Space-Time Ninjutsu users."
"That is, when they use Space-Time Ninjutsu, they often need to rely on specific media or conditions."
Immediately afterwards, Yan began to explain in detail.
"For example, some ninjas need to leave a mark at the target location in advance to achieve the effect of teleporting to that location. Just like Flying Thunder God Technique, it needs to arrange Flying Thunder God Formula before the battle."
"These spells are like coordinates. Only through these coordinates can the user accurately perform space jumps."
"For another example, some Space-Time Ninjutsu require a large amount of chakra to maintain space channels or have time limits."
"This means that when they use this ninjutsu, they need to wait for the opportunity, and their own chakra reserves will become a limiting factor."
"Once they are interrupted midway, or their chakra is exhausted, they will not be able to continue using Space-Time Ninjutsu in a short period of time, and may even fall into a dangerous situation due to chakra overdraft."