Writing a Diary in the Shinobi World, and the Kunoichi Are Shocked

A week later, at the frontline between Kumogakure and Konoha.

The squad led by Yugito and Killer B achieved remarkable results immediately upon arriving at the battlefield.

Faced with two such powerful jinchūriki, Konoha's forces stood no chance.

Ordinary shinobi are no match for tailed beasts.

This is an ironclad rule of the shinobi world.

However...

"Yugito, we've already won. Why do you still look as cold as ice?"

Hearing Killer B's words, Yugito maintained her worried and heavy expression, shaking her head as she replied with utmost seriousness.

"You don't understand. There's still an extremely terrifying person from Konoha who hasn't shown up yet."

"How terrifying can they be?"

Killer B remained dismissive of Yugito's persistent warnings.

"I'm in perfect sync with the Eight-Tails! As a perfect jinchūriki, aside from my big bro, I'm invincible in this world!"

Yugito pressed her lips together and offered no response.

In the past, she too would have believed that Killer B, as a perfect jinchūriki, was an invincible existence in the shinobi world.

But...

The name Uchiha Night Star, combined with the contents of the diary, filled Yugito with immense dread.

This person had never failed, never lost.

In fact, they had never even been injured.

Even Hashirama Senju, hailed as the God of Shinobi, hadn't achieved such feats. After all, Hashirama wasn't born invincible.

Now, there was Uchiha Night Star. Based on the diary's contents, their strength was at least comparable to Madara Uchiha.

So, could Killer B surpass Hashirama Senju?

The answer was naturally no.

At that moment, the sound of footsteps approached from a distance.

Though the footsteps weren't particularly loud, they felt piercing to everyone present.

"He's here."

Yugito's expression changed as she watched the handsome man emerge from the forest. Though they had never met, she instinctively knew he was the owner of the diary.

Uchiha Night Star.

"Finally here, huh?"

Killer B stood up abruptly, his face filled with excitement as he spoke in a relaxed tone.

"So, you're the legendary Uchiha..."

"Ame no Uzume. Kamui."

Before Killer B could finish, Night Star is eyes already revealed the crimson pattern of the Mangekyō Sharingan.

His Kamui distorted space instantly.

The Eight-Tails inside Killer B didn't even have time to issue a warning before a bloody hole appeared in Killer B's chest.

"B!"

Sensing Killer B's life force rapidly fading, the Eight-Tails, without a second thought, prepared to merge with him and initiate a tailed beast transformation.

Unfortunately, Night Star wouldn't give them that chance.

"Ame no Uzume. Amaterasu."

Hellfire-like black flames of Amaterasu erupted instantly, engulfing Killer B and reducing him to nothingness in an instant, leaving no trace behind.

"Lord Killer B!"

Witnessing the death of Kumogakure's strongest fighter, the perfect jinchūriki Killer B, the Kumo-nin were struck with shock.

Night Star is crimson Mangekyō Sharingan swept over every Kumo-nin present with an air of superiority as he spoke slowly.

"Kumogakure now has only two paths before it."

"Submit, or die."

Yugito stopped the Kumo-nin who wanted to resist. With a complex expression, she glanced at Night Star standing there and slowly knelt on one knee.

"Kumogakure... is willing to submit."

She had already realized that Uchiha Night Star alone was an opponent Kumogakure could not hope to defeat.

Moreover, with Konoha's internal conflicts resolved and the Uchiha clan united with the village, there would no longer be anyone in the shinobi world capable of standing against them.

"...Good."

Night Star nodded. Behind him, several figures clad in black robes with red clouds appeared.

Nagato's deep purple Rinnegan surveyed the kneeling Kumo-nin as he spoke slowly.

"What should we do next?"

Night Star gazed at the sky and replied indifferently.

"Conquer the entire shinobi world."

"And then, the moon."

Three years later, with the combined efforts of the Akatsuki, the Uchiha clan, and Konoha, all factions in the shinobi world had fallen.

Uchiha Night Star became the first in shinobi history to rule over all villages and eliminate all daimyō.

His actions marked the beginning of a new era, where the shinobi world transitioned from the rule of daimyō to a world where strength reigned supreme.

The shinobi world finally entered a rare period of peace, and Nagato's long-cherished wish was finally realized.

Daily diary entries, of course, remained essential.

Through the rewards granted by the system, Night Star not only achieved immortality for himself but also obtained multiple chakra fruits, which he distributed to the women around him, elevating them to beings comparable to Kaguya Ōtsutsuki.

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Completed fanfic.

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