"Hmm? Senior Kushina is looking for me? Is it about the blade?"
Ren paused mid-step, clearly surprised by the message. His brows drew together slightly as he glanced at the ANBU messenger standing before him.
"Did she specifically ask for me alone?" he asked.
The masked ANBU gave a short nod. "According to Kushina-sama's instructions, if Rin Nohara or Kakashi Hatake are nearby, they may come along—but it is not mandatory."
Ren fell into brief thought.
Rin… Kakashi… Obito…
"Alright," he said after a moment. "I'll call Rin."
His reasoning was simple.
Minato Namikaze wasn't in the village right now. If Ren went alone to meet Kushina, it might raise unnecessary suspicion. Bringing Rin would make the situation appear more natural—less like a private meeting and more like a casual training session.
As for Kakashi and Obito?
Ren dismissed the idea almost immediately.
Whether Kushina taught them sealing techniques in the original timeline or not… it's better to avoid unnecessary contact.
Especially Obito.
Ren's gaze flickered with a trace of seriousness.
Who knows… what if the methods Obito later used to weaken the Nine-Tails' seal were connected to Kushina's teachings? Even if it's unlikely, I'm not taking risks.
---
Twenty Minutes Later
The two arrived at a secluded training ground on the western side of the Hidden Leaf Village.
The area was quiet, surrounded by dense trees that swayed gently in the afternoon breeze. Sunlight filtered through the leaves, scattering golden patches across the ground.
And there—
Uzumaki Kushina stood waiting.
Her long crimson hair was tied into a high ponytail, blazing like fire under the sun. In her hand, she casually twirled a familiar short sword, its blade glinting faintly.
Not far away, faint presences lingered within the bushes.
Even without looking directly, Ren could tell—
ANBU.
Guarding the Nine-Tails' Jinchūriki at all times.
"Yo! You're finally here!" Kushina called out cheerfully.
Her eyes lit up the moment she saw them.
"Little Rin is here too!"
Before Rin could even react, Kushina had already leapt down from the wooden post she was standing on and rushed forward. She wrapped Rin in a warm hug, rubbing cheeks with her affectionately like an excited older sister.
"Ah—Kushina-senpai—!" Rin laughed awkwardly, clearly caught off guard.
Ren couldn't help but smile faintly at the scene.
Kushina straightened up, then casually tossed the short sword toward him.
"Here, Ren! Your blade's been upgraded!"
---
The Modified Blade
Ren caught the weapon smoothly.
The moment it landed in his hand, he noticed the difference.
It was slightly heavier than before.
The grip felt… different too.
Warm.
Smooth.
Almost as if it had been polished with extreme care.
At a glance, it didn't look much different—but something about it felt alive.
"Try injecting chakra into the handle," Kushina said, crossing her arms with a proud grin.
Ren followed her instructions.
The moment his chakra flowed into the hilt—
Something changed.
Dark crimson patterns began to spread across the blade like cracks in porcelain.
They weren't random.
They were… structured.
Complex.
Countless tiny triangular formations interlocked with each other, forming layered patterns that connected seamlessly. Chakra flowed through them in looping circuits, overlapping yet staggered in a precise rhythm.
It was mesmerizing.
And terrifying.
A perfect blend of artistry and danger.
"This," Kushina said with a grin, "is the Double Binding Seal Technique."
---
Kushina's Explanation
She planted her hands on her hips, clearly proud of her work.
"The blade itself is made from chakra-conductive metal, so modifying it wasn't difficult. Even if you don't understand sealing techniques, you can activate the seal just by injecting chakra into the handle."
Ren listened carefully.
"For anyone cut by this blade," Kushina continued, "their chakra flow will become sluggish almost instantly. Whether it's ninjutsu or—"
"—Genjutsu," Ren finished quietly.
"They won't be able to use it properly."
"Exactly!" Kushina snapped her fingers, clearly pleased.
"Of course," she added, her tone turning slightly more serious, "if you want to unlock the full potential of this seal, you'll need to study sealing techniques properly."
She pointed at the blade.
"Right now, this is basically a simplified version. It's easy to use, but the effect is limited. At best, it interferes with chakra flow and slows reactions by a fraction of a second."
Her eyes sharpened.
"Binding someone completely? That requires precision and mastery."
---
"Understood."
Ren nodded.
So it's a beginner-friendly sealing tool…
Easy to use.
But with hidden depth.
If he mastered sealing techniques, this blade could become far more dangerous.
---
Kushina's "Little Classroom" Begins
Soon after, Kushina began teaching them directly.
The focus—
The Binding Seal Technique.
"This seal requires nine hand signs under normal circumstances," Kushina explained, drawing complex patterns in the dirt with a stick.
"You need to guide your chakra precisely and construct these triangular structures step by step. Even a slight deviation will weaken the effect."
Rin leaned closer, trying her best to follow.
But her expression quickly turned strained.
The diagrams were incredibly complex.
Lines intersected with lines.
Symbols overlapped.
It was like trying to memorize an entire language at once.
"This is actually one of the simpler sealing techniques," Kushina added casually.
Rin froze.
Simpler…?
Kushina continued without noticing.
"More advanced ones like the Evil Sealing Method or the Four Symbols Seal require memorizing over a dozen different rune structures."
Rin's eyes were already spinning.
But she still forced herself to keep watching.
To remember.
To understand.
Meanwhile—
Ren focused just as intently.
But something else was happening.
---
System Notification
Suddenly—
A familiar interface appeared before his eyes.
[Ding! High-quality potential conquest target detected: "Binding Seal Technique"! Triggering limited-time encounter task!]
Ren's heartbeat quickened.
Here it comes…
---
The Inner World
Darkness.
Cold.
A dim light flickered weakly in the distance.
Ren found himself standing in a cage-like space.
And there—
A girl.
She sat curled up in the corner, hugging her knees.
Her long hair obscured most of her face.
She wore a black dress composed of intricate rune patterns.
Cold chains wrapped around her arms and ankles, leaving faint red marks on her pale skin.
Her presence—
Was heavy.
Oppressive.
Like a warning.
Don't come closer.
---
Dialogue Choices Appeared
A: Hello, I'm Ren. Sorry to disturb you… Do you need help?
B: Wow, those chains look amazing. Tie me up too!
C: Hey—look up. I said look up. Let me see your face.
Ren: "…"
Yeah… definitely not B or C.
"This one… is the gloomy type," he muttered internally.
Carefully, he chose—
A.
---
First Contact
The girl's body trembled slightly.
Like a cornered animal.
Slowly—
She lifted her head.
And revealed—
A pair of empty, lifeless black eyes.
They were like stagnant water.
Without light.
Without emotion.
---
Her Response
"Help…?" she murmured softly.
Then—
A faint, cold smile appeared.
"Heh… another self-righteous fool."
Her chains clinked softly.
"I wrapped these chains around myself… to shut out that noisy world."
Her voice dropped.
"Stay away… unless you want to be sealed along with it."
---
Ren's Thoughts
…Whoa.
This wasn't just gloomy.
This was…
A full-on "landmine girl."
Withdrawn.
Self-isolating.
Potentially self-destructive.
If I actually "conquer" this one…
Ren swallowed slightly.
…am I going to be okay?
---
Reality Snaps Back
"Hey, Ren?"
Kushina's voice suddenly cut through his thoughts.
"Why are you spacing out?"
Ren blinked.
The training ground returned.
Rin was still staring at the ground diagrams.
Kushina was looking at him with a raised eyebrow.
"Did you understand what I just explained?"
---
"Ah—Sorry."
Ren quickly straightened.
"My mistake, I got distracted for a moment."
He clasped his hands apologetically.
"Could you explain that part again?"
Kushina snorted lightly.
"Pay attention next time!"
But she still repeated the explanation.
---
Ren's Plan
This one isn't easy…
He analyzed calmly.
Sealing techniques and this personality… they match perfectly.
Complex.
Closed-off.
Hard to approach.
I'll take it slow.
Testing.
Observing.
No reckless moves.
---
Evening — Ichiraku Ramen
After training, Kushina treated Ren and Rin to dinner.
At Ichiraku Ramen, the warm aroma of broth filled the air.
Steam rose from freshly prepared bowls.
It was a comforting contrast to the intense training earlier.
Of course—
ANBU were still nearby.
Watching.
Always watching.
Kushina, as the Nine-Tails Jinchūriki, was never truly alone.
---
Talking About Minato
During the meal, Ren casually asked—
"Where's Minato-sensei lately?"
Kushina tilted her head.
"He's out on a high-level mission," she said. "Even I don't know the details."
Ren nodded.
That matches the timeline.
Minato still had years ahead of him.
Plenty of time.
No rush.
A Sudden Question
Just as the meal was wrapping up—
Kushina suddenly leaned forward, eyes sparkling with curiosity.
"By the way…"
She looked between Ren and Rin.
Then grinned mischievously.
"I've been wondering…"
She tilted her head.
"Are you two… a couple?"
—???
The world seemed to freeze.
--------------------------------------------------
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