As the former headquarters of the Land of Sky, Anker had made a name for himself in World War II.
However, because of this, in the battle with Konoha, this huge air fortress became the focus of the attack.
Although it was not shot down in the end, it was heavily damaged and could only be forced to land in the territory of the Land of Fire. After being covered by the remnants of the Air Ninjas, it became a relic in the mouth of the nearby villagers.
Decades had passed, and the original Konoha had long forgotten the enemy that appeared in World War II.
However, the Sky Ninjas did not forget the enemy who destroyed their land.
Over the years, the remaining Sky Ninjas hid in the dark under the leadership of Shennong, increasing their strength bit by bit.
Flying Ninja, Kunai, Aircraft Carrier, and other weapons were all made one by one.
Only Anker Ban Dean air fortress, because they were afraid of being noticed by Konoha, the Sky Ninjas did not repair it.
When Kakashi led a group of Konoha Ninjas into the underground fortress, they could see that many of the walls around them were covered with moss and vines.
Deep cracks could be seen in them.
After stepping over a boulder that fell from the ceiling, Kakashi opened the internal structure diagram written by Amaru and led everyone straight into the core, heading towards the control hall.
Step! Step! Step! Step!
Suddenly, there was a sound of footsteps coming from the shadows ahead.
Kakashi waved his hand, and everyone scattered and quickly hid.
When a four-man team of air guards arrived, they saw several shadows rushing out, and the former did not have time to react before he fell limply to the ground.
To prevent the air guards from jumping down the wall and destroying the control panel of the air fortress, Kakashi and the others did not choose to attack head-on at the beginning.
The next time, Konoha's Ninjas managed to assassinate several of their patrols and finally came outside the control hall.
There were many of them inside, and it was unrealistic not to make any noise.
At this time, Kakashi pulled up Konoha's forehead, revealing his three Sharingan, and coldly said: "Attack with all your strength!"
In an instant!
A large number of Kunai swords in his hands were thrown into the control hall.
Many of the air ninjas who had no time to react fell to the ground in pain.
"Who is it?"
An air Ninja leader dodged the attack in time. Just as he was angrily questioning, he suddenly saw a green figure rushing in front of him extremely fast. He shouted passionately,
"Konoha's Strength Whirlwind!"
The air Ninja leader only felt his eyes blur, and then his whole body suddenly slammed into the wall.
Rumble!
The sounds of intense fighting broke out.
After the air ninjas were caught off guard, they finally reacted and took out their Kunai-like air blowers, spraying out a large amount of Kunai towards the incoming Konoha Ninjas.
"Wind Style - Wind Style Technique!"
With a raise of his speed, Asuma Sarutobi, who had arrived in front of everyone, quickly formed seals with his hands, and a violent whirlwind from his mouth blew away a large amount of Kunai.
On the side, Yamashiro Aoba, who had displayed the Thousand Crow Art, pointed his finger.
Suddenly, hundreds of crows flew towards the sky Ninja, disrupting his vision.
Taking advantage of this opportunity, he did not want to use too many area-of-effect Ninjutsu to prevent the injured Konoha Ninjas from getting close to him and fighting against the sky Ninja.
"Sakura Naer's Seeing Technique!"
The several air ninjas who were fighting against Kurenai Yuhi suddenly saw the falling cherry blossoms. Instantly, everyone fell into a deep sleep.
After easily dealing with these people, Kurenai Yuhi was just about to find her next target when she suddenly heard a sharp sound behind her.
Her eyes focused, and her hand turned around. Just as she was about to turn around, she saw a familiar figure quickly come in.
Drum! Drum!
After a few moments, when Kurenai looked over, she saw Asuma holding the unconscious Sky Ninja in one hand and holding a swallow in the other. He posed handsomely and said to her in a cool tone, "Kurenai, be careful!"
Kurenai couldn't help but roll her eyes and said, "I'm fine from the start!"
After that, she was too lazy to pay attention to Asuma, who was still the same as when she was a child, and she killed herself towards the other air ninjas.
Asuma rubbed her nose when she saw this and continued to follow him as usual.
Most of the air ninjas 'strength was now in the air combat with absolute advantage, but in terms of individual quality, they were far inferior to Konoha's Ninjas.
Because of this, when the two sides engaged in close combat, the entire battle turned upside down not long after.
Soon, when all the Sky Ninjas in the control hall were dealt with, and Kakashi, who had more than half of his plan succeeded, was about to say something, he suddenly heard rapid footsteps not far away.
Apparently, the Sky Ninjas, who were scattered in other places, heard the fight and came to support.
Kakashi's face remained unchanged as he ordered: "Team One, stay in the control hall and protect everything here. The others go to various parts of the fortress to clean up the remaining Sky Ninjas in the fortress."
"Yes!"
After receiving the order, Konoha's Ninjas scattered in all directions.
Kakashi also ran toward the passage that had just made a noise.
Soon, the sharp cries of thousands of birds sounded in the dark passage.
A series of screams came from the air ninjas before they died.
An hour later.
Konoha's Ninjas cleaned up the remaining air ninjas in the air fortress.
When Kakashi returned to the control hall, through the information he got from Shennong, he reached out and pressed a wall. In an instant, he saw a floor beside him move away, revealing a secret passage down.
Through this passage, he could go to the air fortress's core power room, where Zero was sealed.
After telling the others to wait in place, Kakashi jumped and entered the secret passage.
A minute later, he walked to the edge of the passage. He saw the huge cylindrical space with seal runes engraved on the wall and in the middle of it. Shennong had not put it into the rain, but it was wrapped in a yellow seal. It was like a snake with a "Zero" mask on its head. It was a huge monster named Zero. Even if Kakashi was prepared, he still could not help but be shocked.
Knowing that the monster below was not something he could solve, Kakashi took out the Flying Thunder God in his arms and looked at his pocket watch.
When he found that there were still twenty minutes before the scheduled time, he waited in peace.
Flying Thunder God had no coordinates, although its owner could use chakra to teleport here.
But this did not mean that the latter could sense everything around the coordinates before teleporting.
This was also why Minato did not appear in time when Obito and Rin were in danger.
Although Zero was not a real Biju and had the shame of a Biju, it was not something a normal ninja could handle.
Thus, before setting out, after estimating the time needed for the operation, the busy Yuki would arrive at the appointed time.
Originally, Kakashi was worried that he would not be able to complete the mission within the specified time limit.
Fortunately, the unexpected appearance of Amaru made the operation extremely smooth, and the planned time limit was 20 minutes early.
The first mission to leave the Anbu Group was finally completed.
This made Kakashi heave a sigh of relief. At the same time, he still remembered the last time he was the captain, but the shadow of the death of all the members, including Rin, gradually dissipated.
"Obito. Rin."
"I will carry your blessings and continue walking with a smile."
Kakashi touched his left eye and sighed.
...
Twenty minutes later, Flying Thunder God appeared on time.
"It seems that, Kakashi, you have completed your task very well." Looking around, Yuki, who was clearly in the place where the tail was sealed, patted Kakashi on the shoulder and praised him.
"Although many people are in the air, their combat strength is much weaker than expected. In addition, we also have to rely on the help of a child for this operation." Kakashi, who had not taken any credit, reported seriously.
"Oh? Child? It seems that you guys have an unexpected and exciting journey." Yuki smiled and said, "Let's talk about it later. As for now, let's deal with this Zero in front of us."
After saying that, Yuki lowered his head and looked down at Zero, who was wrapped in a yellow seal membrane.
Zero Tail was first discovered because it was a creature made up of dark chakra, just like the Biju.
It was also the wish to possess a powerful Biju weapon like the five great countries.
Unfortunately, compared to the real Biju, although the power of Zero Tail originated from the dark side of the human heart, as long as the human could not completely break away from the darkness, it would not die.
However, in terms of actual combat effectiveness, it was just average.
Originally, it was weakened because it absorbed Naruto and left an excessive amount of chakra, so it was defeated because it was speechless.
It was no wonder that the sky ninjas used it as the power source of the sky fortress.
The current Yuki Senju, naturally, would not care about the so-called dark chakra.
Similar to the Sky Ninja of the past, he was also prepared to use Zero as a perpetual motion machine.
After all, this guy would never die, so naturally, he could squeeze as much as he wanted.
Looking at Zero, who was restless because of the arrival of an unfamiliar aura, Yuki said to Kakashi, "You stay here."
After that, he took a step forward and immediately learned the Earth Release: Heavy Rock.
His body was incomparably light as he slowly descended.
Although he was using Ninjutsu halfway through, the chakra was constantly seeping out of his body and being absorbed by Zero's current power source in the air fortress, but relying on the enormous amount of chakra and extremely fast recovery speed, Yuki didn't care about this at all.
"Don't burst yourself! Zero tail."
Yuki lightly landed on the ground and looked at Zero's tail before him. He had a smile on his face as he teased.