On his way, Yasu opened the exchange shop, selecting suitable sensory abilities.
Currently, he only had 1310 Witness Points, so his choices were limited.
He immediately dismissed sensory ninjutsu-like abilities that required learning.
This was because it would require the system to take over his body for simulated learning, and the current conditions didn't allow him to learn on the spot.
What he needed now was a sensory ability that could be used immediately.
Sensory abilities that could be used directly were quite expensive in terms of Witness Points.
For example, Zenitsu Agatsuma, the user of Thunder Breathing, had hearing far superior to normal humans, requiring a full 10,000 Witness Points.
This was because his hearing was absolute best among absolute bests, allowing him to hear even breathing, heartbeats, and the sound of blood flowing. With careful listening, he could even discern people's inner thoughts. (Damn, even thought…)
But unfortunately, he couldn't afford 10,000 Witness Points.
After searching for a while, he finally found a suitable sensory ability.
First-stage Observation Haki required exactly 1000 Witness Points.
Observation Haki allows one to strongly sense the 'presence' of others.
It can read the positions and numbers of enemies outside the line of sight, as well as the actions they will take in the next moment.
Observation Haki has multiple functions: sensing attacks, predicting the opponent's next move, sensing the strength of living beings, sensing the emotions and thoughts of living beings, and sensing the position and number of objects outside the field of vision.
And it can even foresee the future.
However, Observation Haki is closely related to psychology and requires calmness to ensure its use. It cannot be used when one is emotionally agitated or loses reason.
But he himself was very calm, so this weakness wasn't a problem for him.
Moreover, the first stage of Observation Haki could only read the position and number of enemies outside the line of sight, and the range was also limited.
But it has the potential for growth.
Yasu could improve his Observation Haki through training, or continue to exchange for the next stage of it in the exchange shop.
So, he directly spent 1000 Witness Points to exchange for the first stage of Observation Haki.
After the exchange was successful, he suddenly paused.
Yasu had a feeling of clarity.
The surrounding wind and grass were all within his perception.
Through Observation Haki, he clearly sensed the Cloud ninjas approaching them from both sides, and he also vaguely felt their strength.
Seven people on each side, fourteen in total, most of whom should be Chunin, with three or four being slightly stronger than Chunin, probably with the strength of a Special Jonin.
Yasu issued a command: "Minato Namikaze!"
"Yes!"
"Take five ninjas to attack the seven Cloud ninjas about 100 meters to the left. There should be one Special Jonin among them. Can you do it?"
Hearing Yasu ask him to lead people to attack seven Cloud ninjas, Minato was stunned for a moment.
He had just reported that Cloud ninjas were found on the right wing, and the number was uncertain.
How did Yasu know that there were Cloud ninjas on the left, not only with a clear number but also able to say clearly that there was a Special Jonin?
Could it be the Sharingan?
But not to mention that Yasu didn't even activate the Sharingan, the Sharingan doesn't have the ability to see through things.
Seeing that Minato didn't answer, Yasu scolded: "What are you doing? Time is of the essence, answer me immediately! Can you do it?!"
Minato came back to his senses and immediately replied: "I can do it!"
"Immediately choose people and get reaady to attack!"
Minato immediately selected five familiar ninjas and led them to attack the Cloud ninjas on the left.
Yasu created a shadow clone and ordered the remaining ninjas: "You follow my shadow clone and continue to move forward; I will clear the Cloud ninjas on the right!"
As soon as he finished speaking, he used the Body Flicker Technique and disappeared from the spot.
Yasu quickly found the location of the seven Cloud ninjas.
He activated the Sharingan and locked onto the two Special Jonin in the lead.
"Thunder Breathing, Fourth Form: Distant Thunder!"
His body erupted with lightning, and he launched a surprise attack at lightning speed, targeting one of the two Special Jonin in the lead.
Hearing the roar of thunder, the seven Cloud ninjas simultaneously looked towards him, but it was already too late.
As Yasu approached, he swung his blade and performed a high-speed slash, instantly beheading one Special Jonin.
The other Cloud ninjas reacted quickly.
"Cloud Style: Front Beheading!"
"Cloud Style: Reverse Beheading!"
"Cloud Style: Crescent Moon Beheading!"
...
The remaining Special Jonin also drew the sword from his waist and swung it at Yasu.
"Cloud Style: Flame Beheading!"
The Cloud ninja Special Jonin injected Fire Release chakra into the sword, causing flames to erupt when he swung it.
Yasu quickly formed three hand seals.
The attacks of the six Cloud ninjas landed on his body, but he turned into a cloud of smoke, turning into a tree stump.
Yasu stood on the tree trunk, forming hand seals at lightning speed.
"Fire Release: Great Fire Annihilation!"
He gathered chakra in his throat and spat out a large expanse of flames like the sea.
Because the range of the flames was too large, the six Cloud ninjas were forced to jump into the air to avoid the flames.
"Thunder Breathing, Fifth Form: Heat Lightning!"
Yasu aimed his ninja sword at the Cloud ninjas in the air, releasing a lightning-like slash with high heat to bombard them.
The abdomens of two of the Cloud ninjas were directly pierced through by his lightning.
Then he formed hand seals again.
"Earth Release: Earth Stone Dragon!"
Yasu used chakra to form a dragon with a terrifying aura from a large amount of earth and stone, and pounced on one of the Cloud ninjas.
The Cloud ninja swung his sword, wanting to destroy the Earth Stone Dragon, but after a part of the Earth Stone Dragon's head was chopped off, it was immediately replenished, and the Cloud ninja was thrown into the sea of fire.
The remaining three Cloud ninjas landed on the tree trunk.
That Cloud ninja Special Jonin quickly formed hand seals.
"Fire Release: Fire Dragon Bullet!"
The Special Jonin spat a beam of fire from his mouth towards Yasu who also completed the hand seals and placed his hand in front of his mouth.
"Fire Release: Great Fireball Technique!"
He gathered chakra in his throat and spat out a huge fireball towards the front.
The beam of fire from the Special Jonin directly merged into the fireball, and the fireball continued to attack him.
The Special Jonin immediately used the Body Flicker Technique to avoid Yasu's Great Fireball.
And Yasu set his sights on the remaining two Cloud ninjas.
When the two Cloud ninjas noticed his gaze on them, and looking at the scarlet Sharingan, their hearts trembled.
Seeing Yasu rushing towards them, the two Cloud ninjas immediately raised their swords to prepare to fight back.
To their surprise, their ninja swords accidentally and smoothly hit Yasu's body.
But the blade didn't give them the feedback of hitting the body, and his body became very illusory.
The two men suddenly felt a pain in their necks, and blood spurted out from their necks. They covered their necks and fell from the tree trunk into the sea of fire.
Yasu's rotating Sharingan stopped.
Now, only the last Special Jonin is left.
The Special Jonin hid in the dense canopy, not even daring to breathe loudly.
The battle hadn't lasted long, and a team of seven had only one survivor.
His mission had failed, and he could only retreat.
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