The Teachings of the Pervy Sage
Jiraiya leaned back, fingers interlocked, a glint of amusement in his eyes as he observed Satoru.
"You are truly gifted," he said, his voice slow but firm. "A man without a noble clan, without inherited secret techniques, yet capable of creating an entirely new form of jutsu that transcends the conventional rules. I have great respect for that."
Satoru raised an eyebrow, sensing something deeper behind those words.
Jiraiya suddenly became more serious, his fingers tapping lightly on the table.
"But..." he emphasized. "To reach the level of a Hokage, to be recognized as someone who comprehends all things, do you know what you're still lacking?"
Satoru blinked.
"Uh… Power?"
"Not wrong, but not enough." Jiraiya shook his head.
"Uh… Fame?" Satoru guessed.
"Important, but still insufficient."
Satoru frowned, scratching his head.
"Then what is it?"
Jiraiya gave a knowing smirk before speaking slowly:
"A true understanding of the essence of chakra."
---
**The Lecture on Chakra Control**
Jiraiya leaned forward, his gaze sharp.
"You can be strong, you can create extraordinary jutsu, but if you don't truly understand chakra and its principles, you will always be limited."
He pulled out a scroll and spread it on the table, revealing a diagram of the human chakra network.
"Listen carefully, Satoru. And you as well, Eren."
Eren remained silent, his sharp gaze locked onto Jiraiya, though his mind was deeply focused on the words about to be spoken.
Jiraiya cleared his throat and began:
"Chakra, in its purest form, has no elemental nature. It is a raw energy that flows within all living beings. But when we use it, we must transform it into elemental properties, which form the basis of elemental ninjutsu."
Satoru nodded. "So, it's like a raw energy source that can be converted into different forms?"
"Exactly." Jiraiya nodded. "Because of that, controlling chakra isn't just about accumulating or unleashing it. You must master its transformation, manipulation, and even its complete restructuring."
He then began drawing a new diagram on the scroll.
"These are the levels of chakra control."
Jiraiya picked up a brush and wrote down each rank:
1. **C-Rank – Basic Level:**
- Feeling chakra within the body, channeling it into tools, and performing basic jutsu.
- This is the level of most newly graduated Genin.
2. **B-Rank – Intermediate Level:**
- Capable of transforming chakra into elemental properties but lacks fine control.
- Jutsu power is fixed, unable to adjust strength freely.
3. **A-Rank – Advanced Level:**
- Can modify jutsu form before execution, adjusting power output.
- Able to adapt jutsu to tactics but not with total freedom.
4. **S-Rank – Master Level:**
- Can alter jutsu even after execution, remotely manipulating it.
- Begins synchronizing chakra with natural elements for greater control.
5. **SS-Rank – Grandmaster Level:**
- Able to change the fundamental nature of an element.
- Example: Transforming Fire Release into blue flames, or merging Fire Release with Lava Release without a kekkei genkai.
- This is the level of legendary figures like Hashirama, Madara, and Minato.
6. **SSS-Rank – Supreme Level:**
- Can create entirely new elements, merging chakra natures at will.
- Jutsu at this level can alter environments and even natural laws.
- Very few in history have reached this level.
---
**Satoru and Eren's Thoughts**
Satoru listened, feeling a surge of realization. Now he understood why figures like Hashirama and Minato were so powerful—not just because of their vast chakra reserves, but because they had reached a level of chakra control far beyond normal comprehension.
He thought to himself:
"So that means… Yashiro was able to control his Fire Release jutsu even after casting it… That places him at an A+ or near-S level. But looking closely, his Fire Kirin's movement was still somewhat crude, meaning he hasn't truly reached S-Rank yet…"
Satoru assessed himself. His Fire Release and Lightning Release were at A-Rank.
"That means I can manipulate jutsu while it's still within my body, but once released, I can't control it anymore…"
He clenched his fists.
"If I want to surpass this limit, I need to push into S-Rank mastery."
Eren, standing beside him, remained silent, but inside, a fire was burning.
He didn't fully grasp the chakra system—it was an entirely foreign concept to him.
But… he felt its power.
And more importantly, he wanted to be stronger.
Eren clenched his fists, thinking to himself:
"Brother… You are the only family I have in this world… I won't let you leave me behind. I need to grow stronger! Stronger than ever!"
---
**A Strange Whisper from the System**
At that moment, a familiar voice echoed in Satoru's mind.
[Listen carefully, Satoru.]
[I can't give you much assistance. As the Will of the World, I cannot favor a single individual too much.]
[Keep pushing forward, old friend.]
Satoru's eyes widened.
Old friend!?
He snapped to attention, about to question the system, but—
Silence.
No response.
Satoru frowned, countless questions swirling in his mind.
---
**The Important Question**
After a long pause, Satoru suddenly recalled something crucial.
He turned to Jiraiya.
"Pervy Sage, what about Eren?"
Jiraiya looked at Eren, clasping his hands together, a subtle but intrigued smile forming on his lips.
"Right… Eren has no chakra. But I am very curious—what exactly is the energy he uses?"
The room fell into a heavy silence.
The mystery behind Eren's power was finally about to be revealed…
---
**END OF CHAPTER.**