Tobirama Senju's Research Records

Konoha, Senju Clan Compound.

In the underground archives, Orochimaru was completely immersed in his work. Spread out before him was a thick, heavy scroll containing the secret techniques and research notes passed down through generations of the Senju clan.

Because the Senju clan inherited the bloodline of the Sage of Six Paths, their physical constitutions were unique, and over these thousands of years, they had left behind quite a substantial legacy.

This included various secret techniques, as well as research into their own physical constitution...

"As expected of the bloodline passed down by the Sage of Six Paths... This foundation is truly shockingly profound."

Orochimaru muttered to himself, his fingertips gently sliding over the detailed diagrams of chakra meridians and acupoints on the scroll.

These materials were far more in-depth than anything found at Konoha Hospital...

Just as he had guessed before, the reason Tsunade was able to master medical ninjutsu at such a young age, aside from her own innate talent, involved other external factors.

Of course, the most valuable among these were the notes left behind by the Second Hokage, Tobirama Senju. Within some yellowed pages, he even found theoretical conjectures left by the Second Hokage regarding life, cells, and regeneration.

Those bold and advanced ideas, even through the eyes of a transmigrator like him, felt incredibly shocking.

"Creation Rebirth... So, the prototype for that technique of Tsunade's was actually here all along..."

A gleam of inquiry flickered in his eyes. The forbidden technique capable of instantly recovering from bodily damage had its initial conception rooted in the Second Hokage.

But thinking about it, that made sense. According to the original records, Tsunade's Creation Rebirth was an imitation of the First Hokage's constitution.

And given Tsunade's personality, there was no way she would ever use her own grandfather as research material.

But such a thing was something the Second Hokage would certainly be capable of doing...

However, as he read more, the doubts in his heart grew deeper.

He searched carefully, scouring every scroll and note that might be related to the Second Hokage's research, yet he could not find any corresponding experimental records.

Whether it was Creation Rebirth or Impure World Reincarnation, even if they were only half-finished, they would inevitably be accompanied by a massive amount of experimentation, yet the data for these experiments was not here.

"Only the application methods and conclusions of the techniques, but no detailed records of the development process... How is this possible?

If it's not even in the Senju clan's archives... then where else could it be?"

Orochimaru's brows furrowed tightly. The Second Hokage had died quite suddenly; it was unlikely he had destroyed them himself.

"In that case..."

Orochimaru sighed softly. Although he was disappointed, it was within his expectations.

For such dangerous and important research, the Second Hokage might have chosen to store it in a more secret location...

Just as he was deep in thought, the door to the archives was suddenly pulled open with a "bang."

A vibrant, golden figure rushed in.

"Orochimaru! You're soaking in here again! It's almost noon, aren't you going to eat?!"

Tsunade stood at the doorway with her hands on her hips, looking huffily at Orochimaru, who was buried in a pile of scrolls.

She had come to check on him several times over the past few days, and this guy seemed to have grown roots in the archives; aside from going to the bathroom, he barely moved an inch.

"No need, Tsunade. I still have some things here I haven't finished reading; I'll just eat something simple."

Orochimaru didn't even look up, holding a Military Ration Pill in his hand, preparing to pop it into his mouth.

"Eat something simple?!"

"It's this stuff again! Do you think you're a ninja hound?!"

Tsunade widened her eyes, strode over to his side, and snatched the Military Ration Pill from his hand.

She looked at Orochimaru's slightly exhausted but still fanatical expression, and her heart felt complicated.

She had previously only thought of Orochimaru as a highly gifted genius, but she hadn't expected him to be this hardworking.

Over the past few days, he had relied solely on Military Ration Pills and short naps to stubbornly chew through this mountain of archives.

"You've really been pushing yourself these past few days, aren't you sleeping at all?"

Tsunade's tone softened, carrying a hint of helplessness and concern.

"Researching materials is much more interesting than sleeping."

Orochimaru shrugged, unbothered, and pulled another Military Ration Pill from his pouch.

"Interesting my foot!"

"Let's go! We're going to eat! Grandma said that eating is the most important thing!"

Tsunade got fired up again, grabbed Orochimaru's arm, and used her Strength of a Hundred to drag him out.

Orochimaru was startled, nearly sent flying by her pull.

He struggled helplessly, only to find that Tsunade's strength had increased quite a bit.

"Wait, Tsunade! I can walk myself!"

"Less talking!"

Tsunade didn't give him a chance to resist, dragging him out from the pile of books and pushing and shoving him out of the archives.

Orochimaru couldn't win against her, so he could only let her drag him along.

He knew Tsunade was concerned for him; although her methods were a bit rough, he could feel that care.

After being "escorted" by Tsunade to finish lunch, Orochimaru had intended to return directly to the library to continue his research, but Tsunade wouldn't have it.

"No way! You need to balance work and rest! Look at how pale your face is! Come on, come out with me to get some fresh air, and while you're at it... hmm, help me pick out some things!"

Tsunade looked at his stubborn, unyielding expression, feeling both annoyed and amused. She simply grabbed him and, without giving him a chance to argue, pulled him outside.

"Just think of it as keeping me company while I shop!"

"..."

Orochimaru was quite speechless; what else could he say?

He could only let Tsunade drag him onto the street...

The streets of Konoha were bustling with people, full of the vibrancy of daily life.

Tsunade seemed full of enthusiasm for shopping, pulling Orochimaru to look here and there, occasionally stopping at roadside stalls to buy some snacks.

Orochimaru followed behind her, feeling quite helpless, his thoughts still drifting back to the Senju family library.

Just then, a familiar figure appeared at the corner of the street.

"Yo! Isn't that Tsunade and... Orochimaru?"

The person approaching had a head of white hair and a signature grin; it was Jiraiya.

Seeing the two of them shopping together, especially seeing Orochimaru looking exhausted while being dragged along by Tsunade, some rather indecent images immediately popped into Jiraiya's mind.

"Oh my, are you two... on a date? Not bad, Orochimaru. You usually look so cold, I didn't expect you to have already won over Tsunade so quickly?"

He chuckled, leaning in and winking suggestively.

The term "won over" clearly didn't carry a decent meaning coming from him.

As soon as Tsunade heard this, her face turned bright red, which then shifted into a look of fury.

"Jiraiya! You idiot, what are you talking about!"

Veins bulged on her forehead, and she swung a fist the size of a sand pot directly at Jiraiya.

However, the current Jiraiya was no longer the same person after his training at Mount Myoboku, and he easily dodged Tsunade's punch.

"Whoa! I was just joking! Don't take it seriously!"

Seeing the situation turn sour, Jiraiya let out a strange yelp and turned to run.

"Who's joking with you! You get back here!"

Tsunade roared, unleashing her Strength of a Hundred, cracking the ground slightly beneath her feet as she chased after Jiraiya.

The two figures jumped onto the rooftops one after the other, quickly disappearing at the end of the street.

Only Orochimaru was left standing in place, feeling utterly bewildered.

He looked in the direction they had vanished, shaking his head helplessly.

When would those two ever settle down?

Still, watching them bicker and mess around like this was... actually quite interesting.

He withdrew his gaze, preparing to turn back to the Senju residence to continue his grand research project.

"Orochimaru-kun."

Just then, a low voice drifted out from the shadows of a nearby alley.

Orochimaru paused his steps and turned his head.

A middle-aged man leaning on a cane was slowly walking out.

"I am the assistant to the Hokage, Shimura Danzō."

Hm? Danzō?!