"Commencing extraction."
The synthesized voice was a death knell in the sterile corridor. Before the words had even fully left the agent's mask, Sakura was moving. She didn't shout, she didn't hesitate. With a guttural cry of pure, protective fury, she threw herself in front of the collapsed Kakashi, her arms raised in a defensive stance. She was a human shield, willing to absorb whatever that syringe contained to protect her sensei.
Naruto moved at the same time, but his path was offensive. He poured chakra into his legs, exploding forward in a blur of orange and black. "Get away from him!" he roared, his right hand already swirling with unstable blue chakra. A hastily formed Rasengan, raw and powerful, aimed directly at the agent's chest.
The white-clad agent didn't flinch. It didn't even seem to register the two separate attacks as a threat. Its head tilted, a minute, almost imperceptible motion. As Naruto's Rasengan closed the distance, the agent sidestepped with an inhuman, liquid smoothness that defied physics. It moved not like a person, but like a program executing a perfect dodge command.
At the same time, it flicked its wrist. The syringe in its hand shot out, not towards Sakura, but towards the wall beside her. A thin, nearly invisible wire trailed behind it. The tip embedded itself in the metal plating with a soft thunk. The agent yanked the wire, using the anchor point to swing itself up and over Sakura's head, landing silently behind her.
The entire sequence took less than a second.
Naruto's Rasengan slammed into the empty corridor, impacting the wall with a deafening roar that tore a gaping hole in the metal, sending sparks and shrapnel flying. He stumbled forward, his attack having met only air.
"Analysis: Uzumaki Naruto. High chakra reserves, aggressive frontal assault style. Predictable," the agent's cold voice stated from behind Sakura.
Sakura spun around, her fist cocked back, channeling chakra into her knuckles. She threw a punch with all her might, a blow that could shatter boulders. The agent raised its arm, not to block, but to deflect. It caught her wrist with a grip like cold steel, its thumb pressing into a nerve cluster.
Sakura gasped, her arm going instantly limp as a jolt of paralyzing energy shot through it. The agent twisted, using her own momentum against her, and flung her effortlessly into the wall beside Kakashi. She crumpled to the ground, dazed but conscious.
"Analysis: Haruno Sakura. Developing close-combat capabilities, but lacks tactical experience. Low threat priority."
The agent turned its full attention back to Kakashi, who was struggling to push himself up, his body still wracked with the after-effects of the chakra suppression field. It raised the syringe again, the purple liquid within it glowing with a hungry light.
Naruto saw it all in horrifying slow motion. His power was useless. Sakura's strength was useless. Kakashi was helpless. They were being dismantled, piece by piece, by an enemy that wasn't just stronger—it was smarter. It was a thinking, adapting machine.
Think, Naruto, think! he screamed at himself. Brute force isn't working! He's reading every move!
He poured his desperation, his rage, his frantic need for a solution into the Shinobi System. HELP ME! GIVE ME SOMETHING!
The crimson interface in his mind flared, responding to his mental plea. New data flooded his vision, overlaying the agent's form. It wasn't a map this time. It was a diagnostic.
[TARGET ANALYSIS: SYNDICATE CEREBRAL ASSASSIN UNIT 734.] [CAPABILITIES: ADVANCED TACTICAL PREDICTION, CHAKRA SUPPRESSION FIELD GENERATOR, NEURO-TOXIN DELIVERY SYSTEM.] [WEAKNESS DETECTED: CENTRAL PROCESSING UNIT HOUSING. LOCATION: POSTERIOR CERVICAL SPINE. ARMOR PLATING THICKNESS: 1.7MM. VULNERABLE TO HIGH-VELOCITY, PINPOINT IMPACT.]
A glowing green dot appeared on the back of the agent's neck, right at the base of its skull.
[TACTICAL SUGGESTION: CREATE MULTI-VECTOR SENSORY OVERLOAD. DECOY ATTACK REQUIRED TO EXPOSE WEAK POINT.]
Naruto's mind, usually a chaotic storm, became a blade of pure focus. He understood. He couldn't beat it with power. He had to outsmart the smart machine. He had to give it a problem it couldn't solve.
"Sakura!" he yelled, his voice sharp and commanding, cutting through her daze. "The wall! Smash the wall!"
Sakura, shaking her head to clear the spots from her vision, looked at him. He wasn't looking at her, but at the agent. His eyes were blazing with an intensity she had never seen before. It was an order. She trusted him.
Scrambling to her feet, she ignored the pain in her arm and slammed her good fist into the metal wall next to her. The impact was cataclysmic. The entire corridor shuddered as a huge dent appeared, metal groaning and pipes bursting, spraying steam and frigid water into the air.
The agent's head twitched towards the new source of chaos, its optical sensors trying to process the sudden environmental failure. For a fraction of a second, its attention was diverted.
It was the opening Naruto needed.
He didn't charge. He didn't make a sound. He performed a single, quick hand sign. "Shadow Clone Jutsu." But he didn't create an army. He created one. A single, perfect clone appeared behind him.
The clone immediately charged forward, screaming its head off, a wild, unpredictable attack aimed directly at the agent's face. It was the same kind of move Naruto had made before.
The agent's tactical system, already analyzing the new threat, tagged it as a repeat of a previous, failed maneuver. Its priority subroutines kicked in. [PRIMARY THREAT: KAKASHI. SECONDARY THREAT: CLONE. TERTIARY THREAT: SAKURA.] It dismissed the clone as a non-critical distraction and turned back to Kakashi, raising its syringe.
That was its mistake. It had analyzed the pattern, but not the player.
While the clone was screaming and flailing, the real Naruto had used it as cover. He moved with a silence he didn't know he possessed, his feet gliding over the wet floor. He wasn't using a jutsu. He wasn't using chakra. He was using his own body, guided by the System's targeting reticle. He was a weapon, aimed at a single, tiny point.
The agent's hand began its descent towards Kakashi's neck.
Naruto struck.
He didn't punch with his whole body. He snapped his arm out, a single, piston-like movement, the heel of his palm aimed directly at the green dot on the back of the agent's neck. It was a move he'd practiced a thousand times in the Academy, a basic, open-palm strike. But this time, it was guided by the fury of a thousand suns and the cold precision of a supercomputer.
The impact was surprisingly quiet. A dull thud.
For a moment, nothing happened. The agent froze, its syringe an inch from Kakashi's skin. Then, a violent cascade of sparks erupted from the back of its neck. A high-pitched, electronic shriek tore from its vocalizer, a sound of pure digital agony.
Its body went into a series of violent, uncontrollable spasms. It dropped the syringe, which clattered to the floor. Its limbs flailed, striking the walls with enough force to dent the metal. It was a machine with its brain short-circuited, a puppet with its strings cut.
"Now!" Naruto yelled, grabbing Kakashi's other arm. "We have to go!"
Sakura didn't need to be told twice. She hauled Kakashi's limp form up, draping one of his arms over her shoulder. Her strength, fueled by adrenaline, allowed her to support his weight with ease.
They ran. They sprinted past the malfunctioning assassin, down the corridor, away from the chakra suppression field. Behind them, the agent's shrieking faded, replaced by the sound of its own body thrashing itself apart.
They didn't stop until they reached a T-junction several dozen meters away. Kakashi slumped against the wall, taking a deep, shuddering breath. "My chakra…" he rasped, his hand glowing faintly as he tried to form a seal. "It's… coming back."
Naruto leaned against the opposite wall, his chest heaving, his hand stinging from the impact. He looked at Sakura, who was tending to a dazed Kakashi, her face streaked with grime and tears of exertion. They had done it. They had faced the monster and survived.
But the victory was hollow. The assassin was just one obstacle in a fortress full of them. And every second they wasted was a second closer to Sasuke losing his eyes.
Naruto pushed himself off the wall, his expression hardening into a mask of grim resolve.
"Get up, Sensei," he said, his voice low and cold. "We're not done yet."