Morning.
On the tatami.
Tsunade slowly woke up.
Rubbing her sleepy eyes, she looked down—
at someone in her arms who clearly hadn't behaved all night.
Grabbing the wandering hand, she rolled her eyes.
"You little brat… you've hugged me all night already. Isn't that enough? Behave yourself!"
Yet despite her scolding tone,
a faint blush appeared on her face.
At the beginning,
she had felt somewhat uncomfortable.
But Ren's warm embrace had given her an incredible sense of comfort and security.
She had even felt reluctant to leave it.
For the first time in her life,
she had secretly wished the night would last longer.
Especially after that strange dream…
Only then did Tsunade realize—
she wasn't immune after all.
She was still a woman.
"Good morning, Tsunade-nee…"
Retracting his mischievous hand,
Ren buried his face into her soft chest again.
"As expected, only Tsunade-nee's warm and spacious embrace can make someone feel at ease."
"You brat…"
Tsunade sighed helplessly.
Her expression turned serious as she lectured him.
"Ren, you're entering puberty now. It's normal for you to feel curious about women."
"You're just attracted to me because of hormones."
"Remember, I'm not only your teacher—I'm also your elder. And I'm already an old woman!"
As she said that,
a faint shadow passed through her eyes.
A trace of bitterness appeared in her heart.
She had never experienced romance before.
Yet because of Ren,
she had experienced it—if only in a dream.
And the worst part was that she encountered someone so perfect
at completely the wrong time.
She didn't feel deep love for Ren.
But Tsunade had to admit—
she didn't dislike his closeness.
In fact, after suppressing her emotions for so many years,
somewhere deep in her heart there might even be a small desire
to let herself go.
Last night,
for the first time,
she hadn't thrown the unruly brat out of the room.
And that embarrassing dream
was undeniable proof.
Had her suppressed emotions simply rebounded too strongly?
"Don't say that, Tsunade-nee. You're not old at all."
Ren looked at her beautiful face.
Her skin was still as flawless as that of an eighteen-year-old girl.
There was no sign of aging whatsoever.
"Besides, others might not understand your abilities, but I do."
"With your level of medical ninjutsu combined with the Yin Seal, you can remain youthful forever."
"If you truly wanted, you could even extend your lifespan dramatically."
"Living for a thousand years might be exaggerated—but two hundred years would definitely be possible."
Talk of immortality was still too early.
For Tsunade, it might sound unrealistic.
But Ren wasn't exaggerating.
Tsunade already possessed the ability to maintain eternal youth.
If she truly focused on researching it,
she could absolutely push her lifespan far beyond that of ordinary humans.
"And by the way…"
Ren smiled mischievously.
"What kind of dream were you having last night, Tsunade-nee?"
He lightly tapped the corner of her mouth, where a trace of drool remained.
"You were even drooling."
"Last night—?"
Tsunade froze.
When she remembered the embarrassing dream,
her entire face turned bright red.
Steam practically rose from her head.
"You little brat! Get out right now!!"
Before her fist could swing—
Ren had already turned into a blur.
Using the Flying Thunder God Technique he had just mastered,
he vanished from the room instantly.
"Ah… this is bad…"
Tsunade's expression changed several times.
Finally she sighed deeply,
covering her face in embarrassment.
"I have no face left to show anyone…"
Her body had reacted strangely last night—
and Ren had clearly noticed.
Even though he teased her,
he had deliberately left her some dignity.
"At this rate, I'll never get rid of that little brat…"
Still,
Ren's words had taken root in her mind.
Remaining forever young—
she had technically already achieved that.
As for age…
true immortality might be difficult.
But surpassing the normal limits of human lifespan?
For her,
it suddenly didn't seem so impossible.
"No, no!"
"I can't let that brat influence me!"
"I'm his teacher! That little troublemaker with impure thoughts!"
Meanwhile,
in the next room.
Ren reappeared.
"Honestly… who would've thought a woman like Tsunade could react so strongly just because of a dream…"
He grinned.
Last night,
Tsunade had definitely had quite the dream.
Even her long-suppressed body
had reacted strongly.
Looking at the wood clones in the room—
which had nearly finished learning all the sealing techniques—
Ren took a deep breath.
He recalled them one by one.
"Whew…"
A massive amount of memories and experience flooded into his mind.
If Ren hadn't rested well the previous night and recovered from the fatigue caused by training Flying Thunder God with multiple clones,
he might have collapsed immediately.
Because this wasn't just about learning a single technique.
The clones had been studying multiple sealing techniques simultaneously—
including several S-rank sealing arts.
"It seems my mental strength is becoming stronger as I grow older…"
Ren closed his eyes for a long moment,
organizing the massive amount of information flowing into his mind.
Then he smiled.
"If this had happened earlier, I'd probably have collapsed."
"And with the perfect Yang Release produced by the fusion of the Forest-Forest Fruit and Senju bloodline…"
"And the perfect Yin Release represented by my Eternal Mangekyō Sharingan…"
His eyes burned with excitement.
Looking toward the rising red sun outside the window,
he clenched his fist tightly.
"Maybe in a few years—once I completely master Yin Release and Yang Release…"
"I won't even need Indra or Asura's chakra."
"I'll be able to awaken the Rinnegan myself."
In Ren's view,
awakening the Rinnegan through Indra and Asura chakra
was merely the combination of
the Sage's Eyes (Yin)
and
the Sage's Body (Yang).
If both powers were trained and strengthened to their absolute limits,
their perfect fusion would naturally create a miraculous transformation.
That transformation
would produce the legendary Rinnegan of the Sage of Six Paths.
And Ren suspected—
the change wouldn't just increase ocular power.
His entire body might undergo a profound evolution.
A transformation far beyond anything imaginable.
Something far superior
to simply transplanting someone else's Rinnegan.
----------------◇ Bonus Chapter Reward◇-----------------------
Every 10 Reviews = 1 Bonus Chapter
◇ Every 100 Power Stones = 1 Bonus Chapter
◇ You can read 60 chapters ahead on Patreon if you're interested:
patreon.com/Luna023
Your support helps the story grow and motivates faster updates.