Time—
always seemed to pass by before one realized it.
In the morning, Ren had originally planned to continue training.
But Shizune and Karin dragged him along to visit several famous scenic spots around town.
As for Tsunade,
it was as if nothing had happened the previous night.
She chatted and laughed with the three of them just like usual.
In the blink of an eye,
lunch was over,
and afternoon had arrived.
Tsunade then took Karin and Shizune into town,
looking for "guinea pigs" so Karin could practice medical treatment.
Naturally,
Ren didn't follow them.
He returned to his room.
His handsome figure sat cross-legged on the floor.
In his hands was a scroll recording the S-rank forbidden technique—Spirit Transformation Technique.
He began studying it carefully.
The Spirit Transformation Technique.
A soul-based S-rank technique capable of letting the soul leave the body.
It allowed the user to transform their spirit into a living soul,
ignoring distance while traveling freely to attack enemies.
It could also control another person's body or enter their mental world.
This technique separated one's spirit from the physical body,
turning it into a spiritual entity capable of possessing enemies
and destroying their mind from within.
However,
since the spiritual body retained the user's consciousness,
its applications were far broader than simply killing through possession.
Because the technique involved the mysterious domain of the soul,
it couldn't be trained through wood clones.
Therefore, unlike when he practiced the Flying Thunder God Technique the previous evening,
Ren couldn't rely on his shared training mode.
He only created a single wood clone.
Its job was to guard his body and ensure nothing unexpected happened.
His hands slowly formed seals.
He concentrated,
circulating chakra
according to the method described in the Spirit Transformation Technique.
However—
the first attempt failed.
Nothing happened.
His consciousness remained in his body.
Second attempt…
Third attempt…
Failure after failure.
Ren showed no discouragement.
Instead,
he carefully analyzed each mistake
and adjusted his approach.
Less than half an hour later,
a strange ripple spread across his body.
A transparent spiritual figure separated from him.
"So this is what it feels like when the soul leaves the body?"
Ren—now in spirit form—looked at himself in surprise.
Then he glanced downward
at his physical body,
still sitting motionless in meditation.
"Guard my body."
He gave the instruction to the wood clone.
After sensing Tsunade and the others' location,
Ren's spirit passed directly through the wall
and disappeared from the room.
At that moment,
on the western side of town,
inside a shabby house.
An elderly woman lay weakly on the bed.
As the senior sister,
Shizune was guiding Karin in examining the patient carefully.
Meanwhile,
Tsunade sat nearby with her arms crossed,
watching quietly.
She had no intention of personally treating the patient.
"Tsunade-nee…"
Suddenly—
Tsunade's entire body tensed.
Her instincts flared.
For a brief moment,
her mind wavered.
Then she found herself inside her mental world.
Standing before her—
was Ren,
who had suddenly appeared and hugged her.
"Ren?"
Tsunade froze in surprise.
She looked around,
then realization dawned on her.
"This is… the Spirit Transformation Technique?"
"Hehe… I just learned it."
Ren grinned.
He discovered that hugging Tsunade in spiritual form
felt strangely fascinating.
"You brat…"
Tsunade's cheeks flushed slightly.
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