In front of the fire.
Tsunade's expression flickered.
Her gaze lingered on Kiyoshi, thoughtful and shadowed.
After a long pause, she let out a deep sigh, her face growing more solemn than ever.
"Developing this kind of forbidden jutsu will inevitably involve human experimentation."
If such forbidden techniques were indeed successfully created, the implications would be unimaginable.
If even the Yin Seal and Creation Rebirth could be sealed within another person's body, allowing them to master and use these powerful techniques at will, then sealing other high-level Jutsus would also likely be possible.
But that was just the beginning.
The real issue was that, to succeed, human experiments would have to be conducted along the way.
And it would be bloody.
"Yes, it's unavoidable," Kiyoshi nodded, understanding her concerns.
Tsunade feared he'd end up like Orochimaru, lost in his obsession with forbidden jutsu, his personality twisted, growing ever more manic and ruthless.
She worried that he'd sacrifice his morals in pursuit of his goals and, in the end, use innocent lives—even his own comrades—as test subjects for these brutal experiments.
"What?"
Hearing this, Karin and Shizune, who were quietly listening nearby, couldn't hide their shock, their faces paling slightly.
"Kiyoshi, I won't stop you. I know I can't…" Tsunade took a deep breath, locking eyes with her brilliant student, and spoke in a low voice.
"But I hope you'll hold onto your principles. Don't lose yourself in this pursuit."
Tsunade knew that Kiyoshi, for now, wasn't as unhinged as Orochimaru.
However, it's a person's boundaries that blur and slowly erode when they dance around that fine line.
The temptation of success can easily consume one's resolve, maintaining self-restraint in such situations is far from easy.
"Tsunade-nee, you don't need to worry about that." Kiyoshi's face grew serious. "I won't go overboard."
He still had his principles.
The shinobi world was vast.
There were countless bandits, rogue ninjas.
If it took him a little longer, he'd just spend some extra time finding the "resources" he needed.
"After all, I wouldn't want to disappoint you, Tsunade-nee." Kiyoshi looked into her eyes, smiling.
"I believe in you."
Seeing the sincerity in his gaze, Tsunade's expression softened. She gently ruffled his hair and advised, "But remember, don't rush."
Having endured wars and traveled the shinobi world for so many years, Tsunade had seen it all. She was no innocent soul.
Even her grand uncle, the Second Hokage, had conducted human experiments to develop forbidden jutsu.
Otherwise, techniques as heinous as the Edo Tensei couldn't have come to exist.
Of course, the Second Hokage used condemned criminals, bandits who terrorized villages, or enemy corpses as his test subjects.
Unlike Orochimaru, who crossed every line, targeting innocent lives—even his own comrades—for the sake of forbidden jutsu.
As long as Kiyoshi could maintain the Second Hokage's standards, Tsunade wouldn't interfere.
"This won't be achieved in one step…" Kiyoshi replied with a smile. "I'll take it slowly."
Sealing the full Yin Seal and Creation Rebirth within another person's body and enabling them to wield it similarly to a Jinchuriki 's control over a tailed beast—this was no small feat.
But it could be done step-by-step.
"So, the first step in the plan."
Kiyoshi smiled, "...is to master some sealing techniques."
Over the past two years, Kiyoshi hadn't set out to Konoha to acquire any of its secret or forbidden techniques, including sealing jutsu.
Instead, he had devoted himself to studying medical ninjutsu under Tsunade's guidance, while also diligently researching the Uchiha clan's scrolls on jutsu, forbidden techniques, and insights from predecessors.
By now, he had fully absorbed the Uchiha clan's treasures, turning them into his own foundation.
For most standard jutsu involving the Five Elements, he didn't even need hand seals to cast them.
"I don't know too many sealing Jutsus," Tsunade commented. "I only know the Strength of a Hundred Seal. Want to learn it?"
As Uzumaki Mito's granddaughter with Senju lineage, Tsunade had excellent chakra control.
She certainly had the potential to learn sealing techniques, but she had never been particularly interested.
Aside from the Yin Seal, she hadn't learned any sealing jutsus from Uzumaki Mito.
"There's no rush. I'll focus on mastering the Yin Seal first," Kiyoshi replied.
You can only eat one bite at a time.
He wasn't worried in the slightest, smiling as he added, "As for other sealing jutsus, I can just ask Danzo for them."
Crossing her arms, Tsunade replied, "Or you could visit the Land of Whirlpools sometime. Maybe you'd find something worthwhile there."
"Huh? The Land of Whirlpools?" Karin's eyes sparkled with curiosity.
She had never seen her mother's homeland and was curious about what it was like.
But after so much war, it was likely in ruins now.
"In any case…"
Kiyoshi's eyes softened as he looked at Tsunade's beautiful face, a hint of laughter in his gaze. "Tsunade-nee, you'll help me too, won't you?"
Although he was very interested in learning sealing techniques, he wasn't in a hurry to develop the forbidden Jutsu he mentioned.
Strictly speaking, it wasn't for himself, but rather for Kurenai, Ino, Tenten, and others.
He didn't need it personally.
Kiyoshi, who had never been satisfied with an ordinary life, had always believed he could achieve immortality.
Because of this, he didn't want to watch the women he loved grow old.
So, he didn't mind enlisting one or two capable assistants to help him with this forbidden Jutsu.
"You brat."
Tsunade looked at Kiyoshi with exasperation.
So, he intended to involve her in this.
But honestly, if she didn't help, she'd feel uneasy leaving him to figure it out on his own.
---------------
Guys do leave some power stones and reviews.
🤞patreon.com/plotplanner🤞
If you guys enjoy this story, you can support me on Patreon and get access to Advance Chapters, it really helps me to work on new chapters.