Naruto: One Eye Tenseigan

The morning sun spilled across the Land of Waves, its warm light glinting off the surface of the water and casting long shadows over Tazuna's modest home. The faint sound of tools echoed in the distance as the bridge construction resumed. Inside the clearing near the edge of the forest, Kakashi Hatake stood with his team gathered before him, his single visible eye calm but sharp with intent.

Naruto sat cross-legged on the grass, his expression determined but tinged with impatience. Beside him, Sakura knelt neatly, her hands clasped in her lap as she listened attentively. Sasuke stood a short distance away, his arms crossed, his face set in its usual mask of mild disdain.

Kakashi raised a hand, silencing Naruto's incoming protest before it began. "Today, we're going to focus on something foundational—chakra control."

Naruto frowned. "Chakra control? But we already know how to use chakra, Sensei! We've been using ninjutsu all this time!"

Kakashi's eye curved slightly, a sign of his ever-patient amusement. "You've been using chakra, yes. But the efficiency and effectiveness of your jutsu depend heavily on how well you control it. Poor control leads to wasted energy, weaker techniques, and even failure."

He raised his hand. "Proper control allows you to use just the right amount of chakra for the task. Too much, and your jutsu becomes unstable. Too little, and it won't work at all."

With a casual step, Kakashi walked toward a nearby tree. He placed one foot against the trunk, his chakra visibly flowing to his sole as it adhered to the bark. Then, with practiced ease, he began walking up the tree as though gravity were irrelevant.

Naruto's jaw dropped. "What the—?! You're walking on the tree?!"

Kakashi paused mid-step, glancing over his shoulder. "Exactly. By focusing your chakra into the soles of your feet and maintaining the right balance, you can cling to surfaces like this. It's an excellent way to train your control because it requires constant adjustment."

He leapt down effortlessly, landing with a soft thud in front of the team. "Your task is simple: walk to the top of the tree and come back down. Without falling."

Naruto shot to his feet, his expression alight with excitement. "That's awesome! I'll be a natural at this, you'll see!"

Kakashi handed each of them a kunai. "Mark your highest point each time you fall. This will help you track your progress."

Sakura nodded, already analyzing the exercise in her mind. Sasuke's eyes narrowed, his competitive spirit ignited as he assessed the task ahead.

As Team 7 prepared to start, a soft rustle from the nearby brush caught their attention. Sayuri stepped into the clearing, her emerald eyes scanning the group briefly before settling on Kakashi.

"Supervising training today?" she asked, her tone neutral but tinged with mild curiosity.

Kakashi nodded. "Chakra control. It's an essential skill."

Sayuri glanced over her shoulder as Mai, Mina, and Tomaru emerged behind her. "Team 2 will be joining you."

Sayuri crossed her arms, her sharp eyes glinting. "Chakashi, I'll leave you to oversee their progress. I'll be monitoring the bridge construction and securing the area. If anything arises, signal me."

Kakashi inclined his head. "Understood."

With that, Sayuri turned, her scarf fluttering lightly in the breeze as she made her way toward the bridge.

Mai, full of her usual energy, stretched dramatically before stepping toward the base of a tree. "Sounds easy enough!" she announced, placing her hands on her hips. "I'll be at the top before anyone else!"

Mina adjusted her glasses, her tone calm but laced with mild skepticism. "It's not as easy as it sounds. Precision takes practice."

Kakashi clapped his hands lightly to gather their attention. "This exercise is about more than just climbing trees," he explained. "It's about understanding and controlling how chakra flows through your body. Mastering that control will improve every aspect of your abilities—your speed, strength, endurance, and even your techniques."

Naruto groaned, rubbing the back of his head. "Man, why can't training ever be simple?"

"It's the foundation of everything you'll do as a shinobi," Kakashi replied evenly. "Good chakra control lets you perform jutsu more effectively and makes even basic techniques more powerful. Without it, you'll waste energy and fail when it matters most."

"Got it!" Mai chirped, dashing toward the tree. "Let's do this!"

She took a running start, slapping her foot onto the trunk. For a split second, it seemed like she had the hang of it—until her chakra surged unevenly. The resulting force propelled her backward, sending her tumbling into a bush.

Mina adjusted her glasses, the glint on her lenses hiding the calculating expression in her gray eyes. With her calm and composed demeanor, she was the picture of quiet intelligence, her analytical nature setting her apart from Mai's fiery enthusiasm. "It's not about speed, Mai," she said evenly. "Precision and balance are what matter. Rushing it will only make you fall."

"Shut it," Mai grumbled, brushing twigs from her hair. "I'll get it this time."

Mina raised an eyebrow, her expression unreadable. "What was that you were saying about it being easy?"

"Shut up, Mina," Mai grumbled, brushing dirt from her knees.

Naruto, his usual energy dulled by frustration, frowned. "Yeah, well, how am I supposed to do that with one hand?"

Kakashi's gaze shifted to Naruto, his tone softening. "Naruto, come with me."

Naruto hesitated, glancing at his teammates, but followed Kakashi to a quieter corner of the clearing. The others continued their training, though Mai and Mina exchanged curious looks.

Kakashi crouched to meet Naruto's gaze, his tone steady but firm. "You're facing a unique challenge," he began. "But it's not impossible. You just need to adapt."

Naruto's frustration bubbled to the surface. "Adapt? I can't even do proper hand seals anymore! How am I supposed to control my chakra like this?"

Kakashi's visible eye crinkled with calm amusement. "Hand seals aren't just about your hands, Naruto. They're about intent. Control comes from focus and understanding, not just form."

Naruto blinked, his frustration giving way to cautious curiosity. "What do you mean?"

"Watch," Kakashi said, lifting his right hand. Slowly and deliberately, he performed a series of one-handed seals, each movement seamless and precise.

Naruto's eyes widened. "You can do that?!"

Kakashi smirked faintly. "I wouldn't be much of a teacher if I couldn't." He lowered his hand, his voice steady. "It's not easy, and it takes practice. But if you focus on the intent behind each seal, you'll find ways to adapt."

Naruto stared at his remaining hand, his fingers twitching. "So… I can still do it? Even with one hand?"

"You can," Kakashi said firmly. "But it won't happen overnight. It'll take patience and determination."

Naruto nodded slowly, his resolve flickering to life. "Alright, Sensei. Show me how."

The hours that followed were filled with patient instruction. Kakashi guided Naruto through the intricacies of one-handed seals, breaking down each movement and explaining how to channel intent into every action. Naruto stumbled at first, his initial attempts clumsy and awkward, but Kakashi's steady guidance—and Tomaru's calming presence—kept him focused.

Nearby, Tomaru observed the lesson in silence, his sharp gaze taking in every detail. He had heard of one-handed seals before—an impressive but niche skill used by only the most skilled shinobi. While Naruto wrestled with the basics, Tomaru's mind wandered, analyzing the implications of such a technique.

One-handed seals… Tomaru thought, his mind dissecting the concept. Impressive, but not without their limitations.

He recalled what he had read and observed about the technique. Not all jutsu can be performed with one hand. Some require complex sequences that demand both hands to execute properly. And there's the risk of error—one small mistake, and the jutsu could fail or even backfire. In critical situations, that kind of risk could be fatal.

His gaze shifted back to Naruto, who was fumbling through another attempt. Then again, there are advantages if he masters it. Speed, for one. One-handed seals can cut down execution time, which could be the difference between life and death in a fight. And flexibility—being able to cast jutsu with one hand leaves the other free for defense or wielding a weapon. That kind of adaptability could give him a real edge.

Tomaru sighed softly, his expression unreadable. Of course, this all depends on Naruto's ability to refine his control. One-handed seals require absolute precision and focus. For someone as reckless as him, that's going to be an uphill battle. But… if there's one thing he's good at, it's defying expectations.

—

Kakashi glanced toward him, a hint of curiosity in his tone. "Not joining in, Tomaru?"

Mai, mid-way up a tree, burst into laughter. "Tomaru? Doing tree-walking exercises? He's way beyond that!" She jumped down, landing with a dramatic flourish. "He's like, a chakra genius or something."

Mina smirked faintly. "It's not just chakra control. His level of precision is advanced—beyond what most shinobi can achieve."

Naruto tilted his head, intrigued. "Advanced? Like, how advanced?"

Tomaru sighed softly, pushing off the tree. "You want to see?"

Without waiting for a response, he walked toward a nearby tree and placed his hand against the trunk. For a moment, nothing happened—then, a faint hum of chakra radiated from his palm. The bark cracked and splintered before the tree collapsed in a shower of debris as his Earth Spear technique activated. The ground trembled slightly, and the remnants of the trunk crumbled into rubble.

Sasuke's eyes narrowed, a flicker of surprise breaking his usual calm demeanor.

Naruto's jaw dropped. "You didn't just climb it—you destroyed it!"

Kakashi stepped forward, his tone shifting into teaching mode. "That," he began, gesturing to the rubble, "is an advanced example of chakra flow combined with elemental nature."

The group turned their attention to him, their curiosity piqued.

"Chakra flow," Kakashi explained, "is the process of directing your chakra through your body or into an object to enhance its properties. By combining it with elemental chakra—like Tomaru's earth affinity—you can amplify its effects. The Earth Spear technique strengthens the body to incredible levels, but it requires precise chakra control to maintain."

Mina adjusted her glasses, her mind racing. "So, better chakra flow means stronger techniques?"

"Exactly," Kakashi confirmed. "Each of the five basic chakra natures—fire, water, wind, earth, and lightning—has unique properties. Earth, for instance, is about strength and durability. Tomaru's control allows him to use that to its fullest potential."

Naruto's gaze flicked back to Tomaru, a mixture of awe and determination lighting up his face. "That's amazing! I want to learn how to do that!"

Kakashi chuckled softly. "First, master the basics. Climbing the tree is the first step. Once you've built that foundation, the advanced techniques will follow."

Tomaru turned, his expression neutral but his words carrying weight. "It's not about flashy moves, Naruto. It's about control. Get that right, and the rest will follow."

Naruto nodded, determination sparking anew. "Alright! Back to the basics it is!"