Stuffed!

Sakura Haruno slowly Hand Seals, mobilizing the Chakra stored in the Yin Seal above her heart, and drawing it to her forehead through a thin blue rod.

This feeling is very strange.

The amount of Chakra that surged in was so great that it almost choked her.

Even though he hadn't extracted Chakra or released the reserves within the Yin Seal, external Chakra surged in—and this Chakra was entirely his own.

The massive amount of Chakra quickly filled her meridians and body completely, almost overflowing and dissipating into the air.

A surge of energy whipped up a whirlwind in the lab, blowing her hair wildly; the instruments rattled and clanged incessantly.

"Ugh... I'm so full..."

The moment the Chakra flowed back into her body, her body was filled with the surging energy!

That's too much!

Sakura Haruno hurriedly activated the Yin Seal on her forehead, absorbing the energy into the seal. Even with her control over Chakra, she was a little flustered for a moment. The speed at which the Yin Seal stored energy couldn't even keep up with the speed at which the Chakra flowed back into her body!

During this process, Sakura felt as if she was already full but still had to keep eating, as if someone was forcing her to fill her up completely.

The feeling of being filled with energy and happiness mixed with the anxiety of worrying about bursting at the seams created an extremely complex and indescribable mood.

This strange feeling of fullness lasted until she had completely extracted Chakra stored in the Yin Seal above her heart.

"Phew, it's finally stopped."

The energy transfer lasted for about a minute before it finally ended.

She's about to roll her eyes if this doesn't end soon!

However, even though the impact was a bit tough, it was a happy kind of tough; the Chakra produced in this experiment was enough for her to fight Sasori for two rounds!

Finally, I can enjoy days with plenty of Chakra again...

The girl was in tears.

From now on, when using Ninjutsu, I can use half my Chakra and throw the other half away... I won't feel bad about wasting it!

"Cough cough." After calming down from her excitement, she cleared her throat and realized that the laboratory had been completely messed up by the gust of wind.

Instruments, microscopes, glasses, petri dishes, crucibles, and so on were all blown haphazardly onto the floor. She quickly picked up the microscope—thankfully, she hadn't hit the most important parts, and immediately breathed a sigh of relief.

The other odds and ends were all worthless items that could be bought anywhere; since the experiment was complete, she simply waved her hand and threw them all away as trash!

After that raid on the bounty hunting mission, she had made a fortune; there was no need to dwell on such things. After cleaning up the place, Sakura left without looking back.

Finally, only those twenty hearts remained... As the last bit of Chakra was extracted, the last vestige of vitality in those hearts vanished, shrinking and curling into an unsightly mass of dead flesh.

Sakura picked up a piece of meat, looked at it, and scoffed, "Tsk tsk, medicine dregs..." before casually tossing it away.

When she left, she also used her Monstrous Strength to destroy the entire base and bury all traces of her in the ground.

All the tasks on the list that Tsunade gave her have been completed.

Sakura Haruno didn't linger and sped off towards Konoha.

When they returned to Konoha, Tsunade gave Sakura Haruno, who was still full of energy after traveling most of the way, a meaningful look. She probably already guessed what Sakura had done during her mission outside the village—or rather, what she had done.

The development of the second phase of the Yin Seal was largely guided by her!

"Others come back from missions looking travel-worn and exhausted," Tsunade teased, "But you look radiant and full of energy!"

Sakura chuckled twice, remaining silent. There was no way to continue the conversation!

"Alright, whatever you did, the mission is complete." Tsunade chuckled, taking the mission completion certificate from Sakura, and said seriously, "So, the quantity and quality of the missions have met the standards. Next is the Jonin combat power assessment. Get ready. The time and place are next Monday morning at the Anbu First Training Ground."

"Yes, Master."

"So... what did you gain from this trip? Or any questions about your cultivation?" Tsunade asked routinely, resting her chin on her hand.

Lately, Sakura Haruno has rarely asked her any profound questions.

The main issue is with cloning, Tsunade can't easily answer, as it's a taboo subject.

So I never expected that Sakura would suddenly raise such a big question!

"Master, do you know what Yin Release is?" Sakura Haruno asked earnestly, holding out a blue stick.

When she heard her question, Tsunade merely frowned slightly, straightened her back, and looked quite surprised; but when she saw the blue staff in Sakura's hand, the Fifth Hokage immediately stood up.

"This is...!" She couldn't help but raise her voice!

After looking at it carefully for a moment, Tsunade finally came to her senses. "No, that's not it."

"Master, do you want to possess the kind of black Chakra rods that can only be used with the Rinnegan?"

Tsunade glanced at Sakura Haruno with a complicated expression. "Yes, you actually know about this... You saw the Uchiha's secret library at the cat ninja's place, right?"

She stepped out from behind the table, leaned close to Sakura, and examined her closely before saying definitively, "It's definitely not one of those black rods... I almost thought you'd inherited the Six Paths' abilities too!"

"Heh heh..." Sakura chuckled self-deprecatingly, "If I had the Rinnegan of the Six Paths, I wouldn't be racking my brains so hard to develop new Ninjutsu!"

Tsunade broke the thin stick in half, examined it carefully in her hand, and nodded.

"It's just a rudimentary application of Yin Release. However, the fact that you can form this shape shows that your spiritual power is strong in both quality and quantity. You can even condense it into a form with such a crude Yin Release Nature Transformation!" she joked.

Tsunade's comment, whether a compliment or an insult, left Sakura somewhat speechless, both amused and exasperated.

"Master, stop teasing me. Tell me first, how do I continue practicing Yin-Yang Release?"

Tsunade her head. "In this regard, I really can't teach you anything more. As for Yang Release, Medical Ninjutsu Ninjutsu relies on the Nature Transformation of Yang Release to function. My grandfather, Hashirama Senju, was a master of Yang Release, but since him, no one has been able to unleash the full power of Yang Release. This kind of Ninjutsu may require considerable experience to learn."

"As for Yin Release, the same applies."

"There isn't much information about this. I'll go back and see if there are any records left by Grandpa. Don't worry about it for now; the chances are slim, especially since you're just an ordinary person's child..."

Sakura Haruno shrugged nonchalantly. If it were anyone else, seeing a safe and peaceful road right in front of them suddenly closed off would likely have caused them great disappointment; but Sakura's interest in this so-called Yin-Yang Release was mainly due to her peculiar habit of wanting to thoroughly investigate everything she encountered.

However, she knew her time was limited and there was no need to understand everything completely. The most important thing was to move forward at her own pace... Otherwise, Sakura Haruno had recently learned a little bit of Earth Release —for stealth and building houses—and Fire Style —for starting fires in the wild. Did she really intend to master Earth Release and Fire Style as well?

Yin-Yang Release indeed very powerful. It would be best if I could learn it; but if the conditions aren't right, Sakura won't force me.

You need to know how to make choices.

Especially someone like her, without any special advantages or innate talent, who has to rely entirely on herself.

"Alright," Sakura said casually, "I was just a little curious. The biggest use of Yin-Yang Release for me is to accelerate my research."

"Hmm... let's leave it at that for now," Tsunade patted her shoulder, the gesture looking a little awkward because Sakura was already taller than her. "Go back and rest for a bit, then prepare for the exam!"

"Although for you, it's just a formality."

Five years passed peacefully.

As expected, no useful information was found regarding Yin-Yang Release; the scroll left by the First Hokage was also vague.

Sakura Haruno strongly suspects that the cultural level of their generation of ninjas was extremely low.

--They had to go to the battlefield to fight at the age of six, how could they have time to learn cultural knowledge?!

Writing down a simple thing in simple words is a challenging task; writing down a complex thing in simple words is a skill that some people may never master in their entire lives.

Yin-Yang Release is an extremely complex issue. Hashirama Senju's level of education was probably only at the academic level. Therefore, reading the notes left by this generation was practically torture—Sakura had already suffered once in Madara's notes.

To understand Yin-Yang Release, one would have to directly Impure World Reincarnation technique... However, her master would probably not agree to teach her the Impure World Reincarnation for this reason.

So in the end, she surrendered to Tsunade's expectant gaze; instead of studying the First Generation's notes, she should have spent some time practicing Medical Ninjutsu —which should have been her strength. However, Sakura's fighting style meant she rarely got injured, so her Medical Ninjutsu never had a chance to be used.

When you spend your time on this kind of spiritual practice, the days pass by quickly.

Monday morning, in the first training ground exclusively for the Anbu.

A few simple tables and chairs were set up on the sidelines—for the elderly advisors and clerical staff who needed to write. Tsunade and the Jonin observing the ceremony stood casually to the side, while she stood in the middle, chatting with the ninjas around her in a very unpretentious manner.

Five people participated in this Jonin power assessment, and Sakura was the oldest and least experienced among them.

Yuichi, an old acquaintance, led them onto the field and briefly introduced the content of today's Jonin combat power assessment.

Ninjas prefer a concise and efficient approach, so this assessment didn't involve any speeches from the Lord Hokage or previous Lord Hokage... or even the Jonin Commander giving a few words, which would have made the whole process long and tedious.

On the contrary.

Seeing the five people standing in the field, Tsunade waved her hand sharply, announcing the start of the assessment.

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