Capítulo 6: Chapter-6
Hatake Kakashi was not an ignorant child. In fact, he understood far more than most people thought. Living in a chaotic era, he had already killed several bandits during missions and seen blood. After returning home the previous day, he spent the night contemplating Aizen's offer. He grasped Aizen's intent to protect him, but he knew that the relationship of adoptive father and apprentice in Konoha wasn't simple.
Though called "father and son," these bonds were often more like "master and apprentice." Konoha's traditional education system laid the foundation, but secret techniques and specialized training in each clan typically began early. Many master-apprentice ninja relationships served to pass down these secrets, ensuring they were preserved. Thus, orphans were often adopted to continue these traditions and keep the knowledge within Konoha alive.
But Aizen Sousuke wasn't a powerful ninja or a holder of secret techniques. Moreover, he wasn't that old. Why should he become a godfather? Being an older brother or uncle might make more sense, but wasn't godfather a bit much?
"Are you considering my strength, Kakashi-kun?" Aizen asked, noticing Hatake Kakashi's surprised expression. His smile remained gentle as he spoke. "There's a decisive gap between Chunin and Genin, Kakashi-kun. Feel free to attack with confidence. I know you're wary of me because of Sakumo-kun's words. But shouldn't the relationship between father and son be more... open?"
"...I understand," Kakashi replied, looking at Aizen's calm demeanor.
In the next instant, Kakashi drew a kunai from his arm and swiftly aimed for Aizen's shoulder. Even an ordinary Jonin wouldn't be able to react in time to the speed of the strike.
Aizen remained unfazed. "The shoulder is fine… after all, it's for my own good..."
Kakashi, initially aiming for Aizen's neck, adjusted his strike to target the shoulder instead. However, instead of the familiar sensation of a blade piercing flesh, all he heard was a sharp, metallic sound—like the clash of steel.
Crack!
Kakashi's eyes widened as he took in the sight before him. Aizen Sousuke had effortlessly caught the kunai between his fingertips. The six-year-old Kakashi could hardly comprehend what had just happened.
"That's the truth, Kakashi-kun," Aizen said softly, his voice as calm as ever, even as he held the weapon with such ease. A gentle smile tugged at his lips.
Around Aizen's fingertips, a light blue chakra shimmered, razor-sharp and refined. It pulsed rhythmically, in sync with his heartbeat and breathing, creating a solid barrier around his fingers. The energy rippled along the blade of the kunai as though his fingers had become an extension of it.
"And as my adopted son," Aizen continued, "this will be the first gift I give you."
With one finger bent around Kakashi's kunai and the other hand adjusting his glasses, Aizen looked at the horrified boy in front of him, still smiling.
"This is a defensive secret technique, Kakashi-kun," Aizen said, his voice calm. "It's my gift to you. I never intended for children like you to go to the battlefield—neither did the First Hokage. But in this world, if you don't have power, you'll be swept aside."
Aizen's expression softened slightly as he continued. "Though I've only had a brief encounter with war, the sight of people killing each other still weighs heavily on me. Unlike medical ninjas, I don't possess remarkable healing abilities or precise chakra control. But, we are creatures of thought."
He paused, letting his words sink in before explaining further. "By injecting or applying a chakra-inducing liquid on the body's surface, a thin but powerful layer of defense automatically forms once the chakra flows. Combine that with certain seals engraved on the epidermis and a trigger-type talisman, and you have a technique like the one I'm showing you now."
Aizen then gestured to his skin where Kakashi's kunai was uselessly pressed against it, unable to pierce the outermost layer. The sharp blade, which would have easily penetrated normal flesh, made a screeching noise as it ground against Aizen's unyielding defense.
"I've named this technique appropriately," he said, his voice steady. "Blut."
The sharp kunai in Kakashi's hand couldn't even pierce the outermost layer of Aizen's skin. It was as if he had stabbed directly into steel, the harsh sound of friction filling the room. Despite Kakashi being hailed as one of Konoha's top geniuses, with strength nearing that of a Chunin, Aizen Sousuke calmly resisted his attack with one hand. Sitting casually in the middle of the writing room, Aizen watched with a gentle smile as Kakashi strained against his immovable defense.
No matter how much effort the boy put into cutting, pressing, or pushing the kunai with all his strength, the blue light shining from Aizen's fingers held firm, like an unyielding mountain. With a slight bend of his finger, Aizen effortlessly caught the entire kunai in his palm.
"Because the technique requires the manipulation of both blood and chakra, the current development can at least withstand ordinary slashing attacks and even basic ninjutsu from Genin or Chunin," Aizen explained, his tone calm as always. He glanced at Kakashi, whose eyes—though masked—were wide with surprise and frustration. It was clear the boy had reached his limit.
Aizen chuckled softly. "You can't even break a strand of my hair, Kakashi-kun. Let this be a lesson for you: don't play by the enemy's rules. It will only lead to regret."
He continued, gesturing to his haori. "The Blut technique has strict requirements for the manipulation of chakra and blood. That's why I wear this haori, with special permission from the Third Hokage, allowing me to move freely without a forehead protector. The haori conceals the defensive technique."
Aizen's voice remained calm, yet instructive. "Instead of being resentful when someone has privileges others don't, think about what makes them unique. Blind envy will cloud your vision and lead to errors in judgment."
Kakashi, however, wasn't convinced. His eyes narrowed with visible disdain. "Tsk!" he hissed to himself. Just a Chunin, the so-called 'failure' my father mentioned.
The small figure of Kakashi suddenly disappeared in a puff of smoke, transforming into a blur as he activated the Substitution Technique. The room was quickly filled with smoke, and Kakashi silently reappeared behind Aizen, hurling several kunai toward the seemingly defenseless haori.
"...A substitution technique?" Aizen murmured, a faint smile tugging at his lips.
Aizen's deep, magnetic voice resonated as he glanced at the kunai in his hand. "Excellent judgment, Kakashi-kun. Attacking continuously from behind when you can't break through the front is a smart strategy. However, it's useless."
Click!
Kakashi's kunai had hit Aizen's back but only managed to tear a small part of his haori, unable to make any significant progress. Kakashi's eyes widened in disbelief. What is this? he thought, stunned by the fact that he had never encountered a technique that could completely resist slashing and stabbing.
"Do you understand now, Kakashi-kun? This is the first gift I want to give you. A no-level special defensive technique: Blut," Aizen said calmly.
From his eyes to his hair, fingertips, and the soles of his feet, Aizen's entire body was enveloped in a faint blue light—the manifestation of the Blut technique. The kunai, now drained of their momentum, slipped off his back and clattered to the wooden floor with dull thuds.
Sitting upright, Aizen turned his head toward Kakashi, who was standing on a beam above, visibly shaken and confused. Pushing up his glasses with a serene smile, Aizen continued, "This technique is a life-saving measure I wish to teach all Konoha shinobi. But unfortunately, it heavily interferes with chakra control and release while in use. Therefore, I suggest relying on swordsmanship and close combat to decide a fight's outcome when utilizing Blut."
"As I mentioned before, Kakashi-kun, I care deeply about your well-being. You are the son of Konoha's White Fang, Sakumo-kun. I do not judge his decisions, but I hope you will accept this gift."
Aizen's gaze softened. "To uphold the Will of Fire, I am willing to entrust this secret technique to you. Beyond that, I am also deeply sorry that the child of a familiar comrade-in-arms has been left to live alone in this world. Please consider it, Kakashi-kun. I respect your choice. Even if you decide not to become my adopted son, I still wish for you to take this technique."
Aizen's words were calm and sincere, his expression warm and genuine. Like moonlight—cold yet carrying a mysterious elegance—his demeanor exuded compassion. He withdrew a scroll from his long haori sleeve, placing it on the desk before turning his gaze back to the troubled Kakashi, who stood frozen on the beam.
Aizen's offer was sincere. His intentions were clear: he wanted to help. But should Kakashi trust him, even when others had warned him to view Aizen as a potential enemy?
Hatake Kakashi was only six years old. Apart from his father, the only person who had ever respected his will and encouraged him was Aizen, the man standing before him. And now, Aizen was offering him not only a secret technique but also a sense of belonging.
Before Kakashi could respond, the tension in the room was interrupted by the sudden appearance of a black-clad ninja at the door.
"Aizen Chunin, Lord Third Hokage has summoned you to a meeting."
"Ah, I'll be right there," Aizen replied softly, nodding to the kneeling Anbu operative. Setting down the scroll labeled Non-return, he stood up and turned to face Kakashi once more, his calm demeanor unchanged.
"Think it over, Kakashi-kun."
"Please think about it carefully, Kakashi-kun. I have high hopes for you, so don't disappoint me," Aizen said softly, his voice calm yet persuasive. "My talents are limited, and I haven't fully figured out the follow-up development of Blut. There is only one theory—reversing the state of the static blood equipment to create a more advanced version. But it's still just that, a theory. You might be able to take it further."
He paused, adjusting his glasses as he turned toward the door. "Well, I'm leaving now. Feel free to consider everything." With that, Aizen left the scroll on the table, the weight of his words lingering in the air as he stepped out.
Kakashi stood motionless, staring at the scroll Aizen had left behind. His heart swirled with a mix of confusion and unease. Aizen Sousuke… is he really just an ordinary Chunin? he wondered. His mind replayed the scene from moments earlier—Aizen catching his kunai with a single hand, his calm demeanor, and the summon from Lord Third Hokage.
His eyes then drifted to the large kanji for 'Heaven' etched on the desk. Kakashi couldn't help but feel that something was off. The idea that Aizen, someone with such powerful and mysterious abilities, was merely a Chunin didn't sit well with him. The Third Hokage wouldn't be wrong, and Anbu wouldn't just allow someone with such a secret technique to act so freely unless they fully trusted him. Moreover, being invited to a meeting by Anbu—that's a great honor, something not easily given.
Even the Uchiha family, known for their pride and distance, treated Aizen with respect. Most of the villagers spoke highly of him, calling him a good man. Yet, Kakashi's late father, Sakumo, had always said otherwise. But his father had committed suicide.
Kakashi's thoughts spiraled as a chilling realization began to creep in. Perhaps… was my father wrong all along?
Standing on the beam of the house, Kakashi, a boy who had always trusted his instincts, now found himself grappling with the deepest confusion he had ever felt in his young life.
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