Abundance Chamber Upgrade, Dual Bloodline Limit Puppets

Deep in the dense forest on the border of the Land of Earth.

Uchiha Jun lurked within a thick canopy, peering through the gaps in the foliage at the burning battlefield on the distant horizon.

The clash between Iwagakure and Kumogakure had been raging for a full day and night.

The Third Raikage was currently at the peak of his power; his figure, like a god of thunder, rampaged through the encirclement of Iwa-nin, claiming the lives of several elite Iwagakure shinobi with every strike.

Yet, he had pushed too deep. The sheer disparity in numbers left the Kumogakure forces he led unable to stop a massive "tomb" from rising from the earth.

At this very moment, the Iwa-nin on the perimeter were using "Earth Style: Ten Thousand Earth Flow Wall" to construct a colossal cage, trapping the Third Raikage and his guard unit within.

Onoki's strategy was clear: use a human-wave tactic regardless of the cost to grind this war god of Kumogakure to death.

It is not yet time to strike.

Uchiha Jun withdrew his gaze, calculating silently in his mind, According to the original records, the Third Raikage can hold out for at least two more days and nights. Since the "warm-up" has only just ended, I might as well let Onoki continue to exhaust his stamina and chakra.

Uchiha Jun scanned his surroundings, and after confirming there were no unusual movements, he took a deep breath and sank his consciousness into the system panel.

[Chakra: 89% (Peak)]

[Equipment: Kusanagi Sword (Unmarked), Explosive Tag x Several, Ninja World Recruitment Scroll x 16]

[Pending Tasks: A-Rank Mission Completion: 3/7]

[New Notification: The Abundance Chamber has met the conditions to unlock a higher difficulty.]

Uchiha Jun's gaze fell upon the new notification, and he raised an eyebrow slightly.

"The Abundance Chamber... upgraded?"

He tapped on the details, and a line of information appeared before his eyes:

[Current Challengeable Difficulty: B-Rank (Recommended: Elite Jonin strength)]

[Successful challenge yields: Large amount of Copper Coins, rare Secret Scroll Fragments, small amount of Gold Coins (First-clear reward), random Magatama or Ninja Tool materials.]

"B-Rank difficulty, recommended Elite Jonin..."

Uchiha Jun stroked his chin, weighing the options.

The "Gold Coins" in the first-clear reward were a resource he desperately needed right now—the system manual stated that Gold Coins were the key to exchanging for High-Recruitment Scrolls and purchasing the "Ninja Scroll."

"Let's do it!"

Having made his decision and double-checking that the area was safe and that Uchiha Hikari was standing guard, Uchiha Jun closed his eyes and sank his consciousness completely into the system space.

[Entering Abundance Chamber: B-Rank Difficulty]

[Generating Scene...]

[Current Challenge Theme: Mechanical Ninja City]

[Objective: Defeat all enemies within the fortress constructed of Explosive Tags and traps, and slay the final BOSS.]

[Rules: Use of real-world ninja tools is prohibited; limited to the system's default combat template.]

[Currently Randomized Assembly Template: Sasuke Uchiha (Shippuden)]

[Challenge Start!]

With a flash of light, Uchiha Jun's vision shifted abruptly.

He found himself standing inside a massive fortress constructed of steel and rock.

The surrounding walls were covered in dense layers of Explosive Tags, while the floor was riddled with various precision-triggered traps.

The air was thick with the scent of gunpowder and machine oil.

"This environment... is a bit troublesome."

Uchiha Jun looked around, his expression turning solemn.

Just then, a heavy thudding sound echoed from ahead.

Thump—thump—thump—

The next second, a giant Puppet Samurai, roughly five meters tall, emerged from the shadows of the corridor.

Cast entirely from an unknown alloy and covered in dense sealing-script patterns, it gripped a massive iron sword longer than a man. Its sturdy build radiated an intense sense of oppression at first glance.

[Mechanical Puppet: Guardian]

[Rank: Elite Jonin Level]

[Trait: Super Armor (Cannot be interrupted by non-grappling attacks)]

[Armament Configuration: Wrist: Senbon Launcher x 4, Chest Plate: Explosive Tag Array, Legs: Hydraulic Charge Device, Head: Chakra Cannon]

"Super Armor..."

Uchiha Jun frowned.

Without hesitation, Uchiha Jun chose to create distance immediately.

Sure enough, the Puppet Samurai raised its massive iron sword and slashed down with a speed that defied its bulky frame!

BOOM—!

The iron sword slammed into the ground, sending gravel flying as it cleaved a fissure several meters deep into the floor.

Uchiha Jun performed a backflip to clear the impact zone, his right hand forming seals simultaneously: "Chidori Senbon!"

Zzzzt--!

Dazzling lightning gathered in his palm, emitting a piercing, high-pitched noise.

"Swish, swish, swish--"

The solidified lightning-natured chakra senbon rained down upon the Puppet Samurai like a torrential storm, yet they vanished into the construct like stones into the sea, failing to stir even a ripple.

An integrated shell, huh.

Time to change tactics.

Decisive, Uchiha Jun canceled the Chidori Senbon and instead released steel wires, anchoring them to the surrounding walls and ceiling.

Like a nimble spider, he utilized the tension of the wires to zip rapidly between the walls and ceiling of the fortress, constantly shifting his position.

Along the way, he deployed Shadow Clones to begin setting up traps across the area.

The Puppet Samurai swung its iron sword in a series of slashes, but each one was easily dodged.

The mechanical core is in the nape of its neck!

After some probing and testing, Uchiha Jun had reached his conclusion.

While dodging, he lured the Puppet Samurai toward a trap set by one of his Shadow Clones.

The moment the Puppet Samurai stepped into the zone, the ground beneath it collapsed instantly!

Rumble--!!

A massive iron net dropped from the ceiling, shrouding the entire Puppet Samurai, while thick, barbed iron chains erupted from the surrounding walls to lock its limbs firmly in place.

"Now!"

A cold glint flashed in Uchiha Jun's eyes. He formed seals with both hands, his body blurring into a lingering afterimage as he appeared instantly above the Puppet Samurai's head!

"Chidori Sharp Spear!"

The Chidori in his right hand transformed into a long spear of lightning, piercing with pinpoint accuracy into the mechanical core at the nape of the Puppet Samurai's neck!

Crack--!!

The sound of metal shattering rang out; the Puppet Samurai's massive frame stiffened violently before crashing to the ground!

[Defeated Mechanical Puppet: Guardian]

[Obtained: Copper Coins ×50,000, Secret Scroll Fragment (Random) ×1]

Uchiha Jun landed on the ground and brushed the dust off his hands, a faint smile tugging at the corner of his mouth.

However, he did not let his guard down, for the challenges of the Abundance Chamber would never end so simply.

Over the next twenty minutes, he systematically cleared more than a dozen different types of mechanical puppets and traps.

There were "Jet-type" puppets that fired fireballs, "Assassin-type" Ninja Dog puppets capable of turning invisible, and "Ambush-type" mechanical puppets that would suddenly burst forth from the walls...

Each enemy possessed a unique attack pattern and set of weaknesses.

Yet, relying on the mobility provided by the Shippuden Sasuke template and the insight of his Sharingan, Uchiha Jun was always able to identify the optimal countermeasure in an instant.

After clearing this wave of enemies, the passage ahead of the fortress opened up into a wide, expansive area.

A massive circular chamber revealed itself before him.

In the center of the space stood a behemoth ten meters tall, constructed entirely of refined steel and magnets. Pale blue chakra light flowed across its surface, and six mechanical arms extended from its back, each equipped with a different ninjutsu apparatus.

[BOSS: Magnet Release Mechanical Giant]

[Level: Elite Jonin]

[Trait: Magnet Release (Can attract and control all surrounding metal ninja tools)]

[Armament Configuration: Magnet Release Iron Sand Storm, Magnet Release Iron Sand Spear, Lightning Release Dissociation Electric Field, Fire Release Scorching Jet, Ice Release Condensation Ray, Wind Release Vacuum Blade]

"So this is the final boss? Dual Kekkei Genkai? This is going to be a real pain in the ass."