God-Tier Check-In! Sage Body and Eternal Mangekyō Sharingan—A Mythic Beginning!

Kamizuki Yu's consciousness was awakened by searing pain.

The heavy stench of rust and scorched earth mingled together, brutally flooding his nostrils.

He forced his eyes open. Through his blurred vision, he saw piles of corpses and tattered flags.

Beneath him lay cold, muddy ground, soaked in someone's blood.

A tearing pain shot through his left shoulder, nearly making him pass out.

A standard-issue Iwa kunai had brutally pierced his shoulder blade, its cold edge less than three inches from his throat.

Foreign memories surged into his mind like a tide, violently battering his nerves.

Naruto World.

Third Shinobi World War.

Kikyo Mountain battlefield.

Hidden Leaf genin Kamizuki Yu.

He had started at death's door.

Did I... transmigrate into another body?

A storm raged in Kamizuki Yu's heart. His past life as an office drone, working himself to death for KPIs, felt like a dream from yesterday.

A fierce desire to survive roared within him.

[God-Tier Check-In System activated. Beginner gift pack being distributed...]

The cold, emotionless mechanical voice sounded like heavenly music at this moment.

[Perfect Sage Body (Beginner) loaded!]

An indescribably vast life force erupted from deep within every cell of his body, and a warm current swept through him.

The gruesome wound in his left shoulder visibly squirmed and closed. His broken bones let out faint cracking sounds as they rapidly reconnected.

His limbs, once icy from blood loss, filled with strength once more—far more than before.

His chakra reserves surged like a burst dam.

The Iwa ninja who had ambushed and grievously wounded him stared in disbelief as Kamizuki Yu not only failed to die, but recovered in an instant.

Then, that shock turned into even denser killing intent and a savage grin.

"Brat, you've got a tough life!"

The Iwa ninja growled hoarsely, raising his bloodstained kunai again and viciously stabbing it toward Kamizuki Yu's head without holding back.

The system prompt sounded at just the right moment: "First check-in location refreshed: [Hidden Leaf Memorial Monument (temporarily erected on the battlefield)]. Check in to receive a god-tier ocular technique reward!"

Kamizuki Yu's gaze instantly locked onto the crude pile of wooden plaques not far away.

It was filled with wooden strips engraved with the names of fallen Hidden Leaf shinobi, looking especially desolate amid the smoke of war.

The powerful reflexes and explosive strength granted by the Sage Body let Kamizuki Yu launch himself forward like a cheetah just before the Iwa ninja's kunai struck him.

He rolled, ragged but precise, evading the fatal blow.

He did not linger to fight. With a clear goal in mind, he rushed toward the temporary memorial monument.

His palm touched the cold, rough wooden monument, and Kamizuki Yu silently said, Check in!

"Check-in successful! Congratulations, Host, for obtaining [Eternal Mangekyō Sharingan (Left Eye: Kamui—Warp Space; Right Eye: Tsukuyomi—Ultimate Mental Realm)]!"

Two utterly different yet equally powerful torrents of ocular power stabbed fiercely into his eyes like red-hot branding irons.

After the unbearable agony came unprecedented clarity and insight.

The world seemed stripped of every disguise before his eyes. Everything became slow and distinct.

The Iwa ninja, whose attack had missed and who was lunging at him again with a savage expression, had every minute muscle movement and every rise and fall of his breathing clearly reflected in Kamizuki Yu's eyes.

Within Kamizuki Yu's left eye, three tomoe spun at high speed before merging into a strange, chilling pinwheel pattern.

[Kamui] activated.

An invisible force of space suddenly descended.

The charging Iwa ninja's body abruptly froze. The savagery on his face instantly stiffened, replaced by utter terror and confusion.

Crack!

A bone-chilling snap rang out as the Iwa ninja's neck twisted and broke at an unnatural angle, his life extinguished in an instant.

He did not even have time to scream before crashing heavily to the ground, splashing mud everywhere.

Another Iwa chunin assigned to provide support happened to witness this incomprehensible scene, and all color drained from his face.

He could not understand how his comrade had died. That Hidden Leaf genin had not even formed a hand seal.

Overwhelming fear sent his soul flying from his body. Just as he was about to form hand seals and use Earth Release to flee—

He met a pair of deep, sinister crimson eyes.

The Eternal Mangekyō pattern emerged in Kamizuki Yu's right eye as well, and the world of [Tsukuyomi] silently descended.

"Ah—!"

The Iwa chunin let out an incomparably shrill scream, clutching his head as he dropped to his knees, his body convulsing violently.

In merely an instant of eye contact, his mind endured seventy-two hours of uninterrupted torture and torment within the Tsukuyomi world.

In reality, only one second had passed.

Dark red blood slowly flowed from the chunin's seven orifices. His gaze completely lost focus, his life force faded, and he toppled stiffly to the ground, dead on the spot.

Kamizuki Yu slowly exhaled. The smell of smoke was still pungent, but the urgency in his heart eased slightly.

He lowered his head to look at his new hands, feeling the surging power within his body and the terrifying ocular techniques contained in his eyes.

"So this is... power."

His voice carried a hint of hoarseness from first gaining power, along with an almost imperceptible coldness.

"Looks like an office drone's resentment turns into combat power in another world."

Kamizuki Yu curled his lips in self-mockery, but his eyes were sharp as blades.

He knew that in this cruel shinobi world, the prerequisite for lying flat was absolute invincibility.

And now, he possessed the initial capital to set foot on that path.