"Sit."
The practice hall was empty, afternoon light slanting through the paper screens. Chiriku knelt on his usual cushion, and Carl took his position opposite.
"Your performance today," Chiriku began, "was impressive. But also concerning."
Carl raised an eyebrow. "Concerning, Shishō?"
"You nearly ended that fight multiple times without using chakra. When you finally did use it, your enhancement was crude but effective. And your... presence, at the end. That killing intent." Chiriku's eyes were sharp. "Those are not skills a sheltered prince develops practicing alone in his mansion."
It wasn't an accusation. It was a request for truth.
Carl considered his options. He could continue the fiction of the eccentric prince who trained in secret. Chiriku might accept it—he wanted to accept it, because the alternative raised uncomfortable questions.
But half-truths had diminishing returns. And Carl needed Chiriku's full investment if he was going to extract maximum value from his remaining time here.
"You're right," Carl said quietly. "I'm not what I appear to be."
Chiriku waited.
"Before I became... who I am now," Carl chose his words carefully, "I spent years in situations where losing meant dying. Not sparring. Not training. Real combat, against opponents who wanted to kill me. That's where I learned to fight."
Underground fighting rings, he didn't say. A previous life in a different world entirely.
"I see." Chiriku's expression was unreadable. "And the killing intent? That level of pressure doesn't come from occasional self-defense."
"No," Carl agreed. "It doesn't."
Silence stretched between them.
"I took you as a disciple because of your status and your donation," Chiriku said finally. "I expected to teach you some basic techniques, indulge a noble's whim, and send you home after a few months feeling accomplished."
"I know."
"But you are not a whim." Chiriku leaned forward slightly. "You are a genuine talent with genuine experience. Perhaps the most promising student I've encountered since... since before the Guardian Ninja incident."
Carl caught the shadow that passed over Chiriku's face. The Twelve Guardian Ninja—he remembered fragments about them. A group of elite fighters who protected the Fire Daimyō, torn apart by internal conflict. Many had died. Chiriku was one of the few survivors.
"Shishō—"
"I will train you seriously," Chiriku interrupted. "Not as a prince playing at being a ninja, but as a true disciple. However, this means I will expect results. And I will not be gentle."
"I wouldn't want you to be."
Chiriku nodded once, sharply. "Good. Then let's begin with your mistakes."
For the next hour, he dissected Carl's fight with Kūkai in exhaustive detail.
The good: Carl's reading of his opponent, his control of distance, his ability to end the fight whenever he chose. His physical technique was already at a level that most chūnin would envy.
The bad: He'd completely failed to account for ninjutsu possibilities. When Kūkai used Substitution, Carl hadn't immediately scanned for the escape position. When the fireball came, he'd barely reacted in time. His chakra enhancement was powerful but inefficient—too much energy expended for too little effect.
"You fight like a warrior who has never faced a ninja," Chiriku summarized. "Your instincts are built for a different kind of combat. We need to retrain them."
"How long will that take?"
"Longer than we have." Chiriku's expression was frank. "You've told me you can only stay for three months, and one has already passed. In the remaining time, I can give you foundations—but true mastery will require years of continued practice."
Carl nodded. He'd expected as much.
"Then let's make the most of the time we have."
---
*Two weeks later.*
Carl stood on the surface of the temple's reflection pond, chakra flowing steadily through his feet.
Water-walking had taken him three days to learn—slower than tree-climbing, which he'd mastered in an afternoon. The liquid surface required constant micro-adjustments, a level of chakra control that demanded ongoing concentration rather than a single application of force.
But he'd done it. Another fundamental skill added to his arsenal.
"Your chakra control has improved significantly."
Chiriku approached the pond's edge, carrying several small rectangular papers in one hand.
"The tree-climbing exercise builds raw control," Carl said, maintaining his position on the water. "But water-walking teaches something different. Adaptation. Responsiveness."
"You understand well." Chiriku nodded approvingly. "Most students see these as simple exercises. They don't realize they're learning principles that apply to every aspect of ninja combat."
He held up one of the papers.
"This is chakra-sensitive paper, produced from trees grown in Konoha using special cultivation methods. When infused with chakra, it reveals elemental affinity." He paused. "Normally, I wouldn't test a student so early. But your progress has been... unusual."
Carl walked across the water to the pond's edge and stepped onto solid ground. He took the paper Chiriku offered.
"Focus your chakra into it," Chiriku instructed. "Don't try to achieve any specific result. Simply let your chakra flow naturally."
Carl did as instructed, channeling sennin chakra through his fingers and into the paper.
The reaction was immediate—and dramatic.
The paper didn't just respond to one element. It transformed, cycling through effects in rapid succession: bursting into flame, crumbling to dust, splitting in half, wrinkling with moisture, crinkling with electrical discharge.
Then it dissolved entirely, unable to contain the conflicting energies.
Chiriku stared at the empty space where the paper had been. His composure cracked for the first time since Carl had known him.
"That's... that's not possible."
"Shishō?"
"Five affinities." Chiriku's voice was barely above a whisper. "Perfect affinity with all five basic elements. In the entire history of shinobi that I know of, only a handful of people have ever demonstrated such potential. And most of them required special circumstances—bloodlines, bijū influence, legendary artifacts."
Carl said nothing. He'd known about his five-element affinity since the System had displayed it, but he hadn't mentioned it to anyone. The reaction it would provoke was exactly what he was seeing now: disbelief verging on alarm.
"Who are you?" Chiriku demanded. "This cannot be natural. Five perfect affinities, exceptional physical prowess, chakra extraction in a single night—"
"I am who I say I am," Carl said calmly. "Yuan Chuan, your student. Whatever gifts I possess, I've come here to learn how to use them. Nothing more."
Chiriku's eyes searched his face for a long moment.
"The daimyō's bloodline is not known for producing ninja talent," he said slowly. "If anything, the royal family has historically been unremarkable in terms of chakra capability."
"Perhaps I'm an anomaly."
"Perhaps." Chiriku didn't sound convinced. But he also didn't press further. "Regardless of the explanation, your potential is extraordinary. This changes what I can teach you."
He retrieved another paper from his collection. "Fire affinity is most common in the Land of Fire. Most of our temple's combat techniques are fire-based. But with all five elements available..."
"I can learn anything," Carl finished.
"In theory. In practice, mastering even one elemental transformation takes years. Most ninja never progress beyond their primary affinity." Chiriku considered. "However, with your control and your... unusual gifts... perhaps we can begin introducing elemental manipulation alongside your other training."
"I would appreciate that, Shishō."
Chiriku was silent for a moment, organizing his thoughts.
"We have six weeks remaining," he said finally. "I'm revising your training plan. Cultural education will continue—you need to understand how the ninja world operates, not just how to fight in it. But I'm adding elemental theory, advanced chakra exercises, and..."
He paused.
"And?"
"The Temple of Fire possesses several secret techniques. The most famous are Raigō: Senjusatsu—the Welcoming Approach: Thousand-Armed Murder—and Ninpō: Fudō Myō-ō—the Ninja Art: Angered Buddha. These are high-level techniques that normally require years of preparation."
Carl kept his expression neutral, but internally his attention sharpened. These were the techniques he'd been hoping to learn—the unique inheritance of the Temple of Fire.
"You are not ready for either," Chiriku continued. "Your chakra reserves are still building, and the control required is beyond your current level. However, I can begin teaching you the foundational principles. The breathing methods. The meditation practices. The theory behind the techniques."
"So that when I have sufficient chakra, I can complete the learning on my own."
"Precisely." Chiriku's expression carried something that might have been respect.
Carl bowed. "Thank you for your faith in me, Shishō. I won't waste this opportunity."
"See that you don't." Chiriku rose. "Training resumes at dawn tomorrow. Rest while you can."
He departed, leaving Carl alone by the reflection pond.
---
Carl remained by the water's edge as the sun began its descent toward the mountains.
The past weeks had been... satisfying, in a way he hadn't expected.
In his previous life, he'd eventually hit walls—physical limitations that no amount of training could overcome. The human body had ceilings. Against modern weapons, against superior numbers, against simple bad luck, martial skill only went so far.
He'd made peace with that. Focused on money instead, on building power through wealth rather than personal strength.
But here, in this world, the rules were different.
Chakra let humans exceed human limits. Ninjutsu let them reshape reality itself. The ceiling wasn't physical capability—it was knowledge, training, and time.
And I'm building that knowledge now, Carl thought. Every technique I learn here stays with me. Every principle I internalize returns with me to the Marvel Universe.
The Three Body Techniques—Transformation, Clone, Substitution—were already his. Minor abilities by ninja standards, but potentially game-changing in a world that didn't expect such things.
Water-walking and tree-climbing had taught him chakra control principles that would inform everything else he learned.
And now, foundational training for the Temple of Fire's secret techniques. Building toward abilities that could rival jōnin-level combat capabilities.
Six weeks left, Carl reminded himself. And the Side Quest completion will add more time—six additional months once I relocate to New York.
He might not leave this world a master. But he'd leave with enough foundations to continue growing on his own.
That was worth any amount of training suffering Chiriku could devise.
---
That night, alone in his room, Carl opened the System interface.
┌─ SYSTEM ──────────────────────────────┐
│ TRAINING PROGRESS UPDATE │
│ │
│ Time Elapsed: 6 weeks │
│ Time Remaining: 6 weeks │
│ │
│ SKILLS ACQUIRED: │
│ ✓ Sennin Chakra Extraction │
│ ✓ 12 Basic Hand Seals │
│ ✓ Henge no Jutsu (Transformation) │
│ ✓ Bunshin no Jutsu (Clone) │
│ ✓ Kawarimi no Jutsu (Substitution) │
│ ✓ Tree-Walking Exercise │
│ ✓ Water-Walking Exercise │
│ │
│ CHAKRA RESERVES: │
│ ████████░░░░░░░░░░░░ 38% │
│ │
│ ELEMENTAL AFFINITIES: │
│ Fire ████████████████████ 100% │
│ Water ████████████████████ 100% │
│ Lightning ████████████████████ 100% │
│ Earth ████████████████████ 100% │
│ Wind ████████████████████ 100% │
│ │
│ CURRENT TRAINING PHASE: │
│ → Cultural/Theoretical Education │
│ → Advanced Chakra Control │
│ → Elemental Theory Introduction │
│ → Secret Technique Foundations │
└────────────────────────────────────────┘
Thirty-eight percent reserves, Carl noted. Not bad for six weeks of dedicated practice. But still far below what high-level techniques require.
He'd need to continue chakra refinement even after returning to the Marvel Universe. The sennin method was slower than standard chakra extraction, but the passive physical enhancement was worth the tradeoff.
And speaking of physical enhancement...
Carl closed the System panel and settled into his nightly practice routine.
Tiger-Leopard Thunder Sound.
The unique breathing technique of exercising the body from the inside out, strengthening organs and connective tissue beyond what external training could achieve.
A rumbling purr emerged from his chest and abdomen, a sound that seemed to resonate through his bones. His breathing synchronized with subtle muscle contractions, creating a kind of internal massage that accelerated recovery and built density in ways that chakra enhancement alone couldn't replicate.
This was his edge. His secret advantage.
The ninja world knew nothing of Xingyiquan, of Baguazhang, of the internal martial arts that he'd spent a previous lifetime mastering. They had chakra, yes—but they'd never developed the systematic body-cultivation methods that Chinese martial arts had refined over centuries.
Carl intended to combine both traditions.
Chakra for external techniques and combat enhancement. Internal cultivation for foundation-building and recovery. Each supporting the other, creating capabilities that neither system could achieve alone.
This is what integration looks like, he thought as the breathing exercise completed. Taking the best from every source. Building something new from the components.
It was the same principle that would guide him across every Small World the System unlocked.
Naruto was just the beginning.
---
[END CHAPTER]
---
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