This ninja in Naruto is unscientific

"Don't be ridiculous! Just a few low-ranking ninjas!"

On the rock face, the scarred Jonin peered through the firing port at the three Konoha brats below who seemed to have given up and were whispering amongst themselves. A strange unease grew within him.

"Quick! Activate Rock Collapse! Bury them!"

With his roar, the hand seals of the four Iwa ninja suddenly accelerated, and the rock walls of the entire canyon began to emit a teeth-grinding cracking sound, as if a giant mouth was slowly closing.

At this critical moment.

"Minato, make your move!" Nishikawa Tetsu shouted in a low voice.

Without any hesitation, Minato Namikaze trusted his teammate who had graduated from the Ninja Academy with him.

The golden figure transformed into a streak of light once more, charging headlong into the sturdy semi-circular earthen fortress, defiantly facing the tumbling rubble above.

"court death!"

The scarred ninja grinned maliciously, manipulating the spikes on the earthen wall in preparation for an attack.

This time, however, Minato Namikaze did not rush forward for hand-to-hand combat. When he was still five meters away from the fortress, he suddenly flicked his wrist, and three bulging paper bags flew out like projectiles, accurately passing through the not-so-wide firing port.

Immediately afterwards, a kunai struck first, tearing through the paper bag in mid-air.

"puff!"

The grayish-white powder exploded instantly inside the sealed earthen fortress, spreading rapidly like a thick fog and filling every corner.

"Cough cough cough! What is this? Poisonous smoke?"

"No...it tastes like flour? And it has a rusty smell?"

The sound of the Iwa ninja coughing in surprise and uncertainty came from inside the earthen fortress.

They initially thought it was an explosive tag or a poison gas bomb, but it turned out to be a cloud of choking dust.

The moment Minato Namikaze threw the paper bag, he forcibly changed direction and used the Body Flicker Technique to retreat rapidly, landing back in a safe area.

"Right now, senpai!" Nishikawa Tetsu's voice was calm to the point of being cold.

Even without his prompting, a cold glint flashed in the eyes of Fugaku Uchiha, who was already poised to strike.

He infused the shuriken with explosive tags, then flung it out using the unique shuriken-manipulation technique of the Uchiha school.

The shuriken traced a strange arc in the air, avoiding the falling rocks, and like a venomous snake burrowing into a cave, it accurately shot into the firing port that was still spewing out white dust.

At this moment, time seemed to stand still.

Inside the earthen fortress, the scarred ninja stared at the explosive tag that flew in with sparks, and at the high concentration of aluminum powder and flour mixture in the air; his pupils suddenly shrank to the size of pinpoints.

As a seasoned Jonin, although he didn't understand science, his instinctive intuition told him that death was imminent.

"Defend--"

He only had time to utter one word.

The detonator was detonated.

In the confined space, a tiny spark instantly ignited every tiny speck of dust suspended in the air.

The dust, which had been burning gently, suddenly triggered a chain reaction. The heat generated by the rapid combustion caused the air to expand hundreds of times in an instant, turning the enclosed earthen fortress into a pressure cooker, before finally exploding at the critical point.

"BOOM!!!"

A deafening roar, several times louder than the previous "rock collapse," shook the entire canyon.

The seemingly indestructible "Earth Release: Earth Flow Wall" was not broken by external force, but rather burst from the inside like a balloon!

The orange-red flames mixed with the shockwave instantly tore through the rock defenses. The massive blast wave, carrying intense heat, sent the four Rock Ninja flying like rag dolls.

The terrifyingly high temperature instantly evaporated the surrounding rainwater, forming a huge white mushroom cloud of steam.

Even the three people standing dozens of meters away could feel the scorching heat wave coming towards them.

"this……"

Fugaku Uchiha instinctively raised his hand to cover his face; his usually calm and proud face was now filled with shock.

He looked at the earthen fortress that had been razed to the ground, and the Iwa ninja scattered on the ground, their bodies charred and their fates unknown, and his throat went dry.

This power is even more terrifying than B-rank or even A-rank fire-style ninjutsu.

And all this was caused by just a few bags of powder and a detonating tag?

The smoke and dust gradually dissipated.

Nishikawa Tetsu emerged from behind the rock, dusted himself off, and held a kunai in his hand.

"This is a dust explosion."

As he walked toward the fallen Iwa ninja, he calmly explained, as if he were summarizing an experimental report.

"In a confined space, combustible dust mixes thoroughly with air. Once it comes into contact with an open flame, a violent oxidation reaction will occur. In addition, the aluminum powder and iron oxide I mixed in will produce an aluminothermic reaction at the same time as the explosion, with temperatures reaching over 2000 degrees Celsius."

At this point, Nishikawa Tetsu walked up to the scarred Jonin.

This guy was incredibly resilient. Despite suffering severe burns all over his body, with his once-proud hardened skin torn to shreds, he was still twitching slightly, his eyes filled with extreme fear and confusion.

"Despicable...despicable." The scarred ninja squeezed out two words from his throat.

"This is war, not a duel."

Nishikawa Tetsu raised his kunai expressionlessly and pierced the other man's heart with precision.

"puff."

Blood splattered in the rain.

Then, suppressing the turmoil in his heart, he skillfully searched the corpse, taking all of the victim's ninja tool pouch and intelligence scrolls with the practiced ease of a seasoned bounty hunter.

Minato Namikaze also walked over, watching Nishikawa Tetsu's actions with a complex expression, but mostly admiration: "How did you foresee all of that just now?"

"Observe." Nishikawa Tetsu stood up and handed a blood-stained scroll to Namikaze Minato. "If we hadn't taken advantage of the terrain and their defensive mindset, we would have been buried alive."

At that moment, Fugaku Uchiha walked over.

He looked at the four corpses on the ground, then at Nishikawa Tetsu who was wiping his kunai, and remained silent for a long time.

The previous disdain and contempt vanished at this moment.

Although Nishikawa Tetsu's chakra reserves were still low and his taijutsu was still mediocre, the tactical layout he displayed just now and that chilling "knowledge" made Uchiha Fugaku realize that this boy was not a burden.

In fact, it is far more dangerous than most Chunin who only know how to counter waves.

Those who play tactics have dirty hearts!

"Feed".

Fugaku Uchiha spoke up, his tone still somewhat awkward, but his arrogant air had lessened considerably: "Is this also a ninjutsu?"

Nishikawa Tetsu raised his head, meeting those black eyes that had already closed their Sharingan, and a slight smile appeared on his lips:

"No, senior, this is science."

Fugaku Uchiha's lips twitched, as if he wanted to refute something, but looking at the tragic results before him, he finally just snorted and turned his head away.

"Don't get carried away. You've done a great job this time."

He paused, lowered his voice, and made it sound somewhat indistinct:

"Your command just now wasn't bad."

For the proud Uchiha, this was already the highest praise.

Nishikawa Tetsu smiled and did not expose the arrogant senior's disguise.

"We've finished cleaning up the battlefield, so we need to leave quickly. Such a commotion will soon attract other enemies."

"Um."

Minato Namikaze nodded, his gaze towards Toru Nishikawa now filled with trust. Although both were graduates of the Ninja Academy, to be honest, the two hadn't had much interaction before.

Even though this was their first time working together, this temporary fifth team had already quietly built something called bonds through the test of life and death.

The rain was still falling, but the three of them walked with much lighter steps than before.

However, Fugaku Uchiha would occasionally steal a glance at the ninja tool pouch on Nishikawa Tetsu's back, secretly wondering: What the hell is this guy carrying in his pouch?