Ryujin Jakka

The next day, Shiro woke up early in the morning, ate breakfast and departed for the academy.

And as usual, he saw Sasuke getting out from his apartment, greeted him and headed to the academy.

After a few minutes, he finally arrived to the academy. He entered his classroom and sat on the last row, deciding to sleep until the teacher arrived, as he slept late yesterday.

________

After a few minutes, the teacher, Iruka, finally arrived, finding the class chaotic.

"*Cough*, I presume that I don't have to remind you that the next graduation exams are a week later." Iruka coughed to silence the class and then declared.

No one was surprised, except of course a certain blonde boy.

'It seems that I will graduate a week later.' Shiro sighed, as the thought of leaving the academy crossed his mind.

He knew that he could graduate years ago, but he simply wanted to graduate with the Konoha 11 and Sasuke.

He sighed again, as the classes began.

_______

In the training grounds.

As soon as Shiro got out from the academy, he went to his apartment, ate a simple sandwich, changed his clothes and quickly went to the training grounds.

He picked an empty one as he didn't want any disturbances.

Today, he decided to train with his new sword and techniques again.

As he tapped the wooden staff, the wood seemed to disintegrate. And the beautiful sword showed itself.

Shiro touched the sword, and felt the slight temperature that it was emitting. Then, he began training again, swinging the sword in all directions, contrary to yesterday when he just slashed vertically.

________

Shiro fell again as the fatigue from all the swinging overwhelmed him.

'*Pant*, finally I'm able to use Ryujin Jakka normally.' He smiled as a sense of happiness crossed his mind. But as soon as that sense appeared, it vanished.

'Why am I even happy? I am not even strong as 1% of the strength of the named Kaguya?' After a little pause. 'I have to train and familiarize myself with the sword and the sword style as soon as possible.' Shiro was determined to be as strong as the likes of Madara, Kaguya and the future Naruto and Sasuke.

He picked up the sword and decided to practice the Sun Breathing Style forms.

He wanted to master at least two before the graduation exam. The two were as previously mentioned the first form Dance, and the eleventh form Fake Rainbow.

_________

After a week.

It was finally the day when the graduation exam was held.

In this week, Shiro mastered Dance, but unfortunately, it seemed to him that Fake Rainbow was far from reach because he noticed that it was hard to master and also because it consumed a massive portion of his chakra, of course he couldn't deny that his Chakra amount increased in this week.

He speculated that the difficulty was because of the insufficient Chakra or simply because the number of the technique was advanced.

He also noticed that his Dance was stronger than the Dance he remembered from the anime, maybe because he is executing it with Ryujin Jakka. It is simply a high-powered slash that can decimate enemies if used correctly.

At that moment, he was heading to the academy to do his graduation exam. And he was very disappointed in it, as it was just the execution of the Clone Technique which he already mastered years ago.

As he entered he greeted the proctor, and executing some hand seals, a perfect clone of him appeared beside him.

The proctor was slightly surprised, but nevertheless he approved of this aspiring ninja as he declared to him that he passed.

_________

After some time, Shiro left the academy for maybe the last time. In his arm, a forehead protector with the Konoha symbol engraved in it was knotted.

'Now that I'm a genin, what do I have to do?' Shiro looked at the forehead protector in his arm and sighed.

(A/N: A forehead protector in the arm, hhhh.)

'Well, the proctor said that after some days, all the graduated students will be assigned to teams with an elite jonin supervisor. So, I think I will just wait.'

__________

The next day in the training grounds.

Shiro was full of sweat as he finished another session of training.

He noticed again an improvement in his chakra reserves, and now he totally familiarized with the weight and height of the sword, with a little improvement in practicing Fake Rainbow. He also tried to improve his mastery of his Keikki Genkai, the Sharingan.

However, Shiro finally decided to enter his 'inner world' to see the spirit of his Ryujin Jakka.

He exhaled a mouthful of air, then he took a meditative pose, and placed his sword over his lap.

_______

As Shiro opened his eyes, he realized that he was flying, or rather he was walking in a void.

'My inner world is a void?' Shiro questioned himself, as he walked in a direction that attracted him.

After minutes of walking, Shiro noticed that the temperature was rising quickly. And soon the void changed to a scenery that looked like a hell, it was full of flames.

However, after walking a little, an enormous blazing inferno, manifested in front of him.

"So my new host is a puny kid like you? My previous host was million times stronger than you, and even then, I left him, so what do you think that I will stay with you." A heavy and haughty voice echoed in the space.

Shiro was stunned when he heard the voice, and more when he saw an inferno talking.

Shiro always wondered the reason he could use a Zanpakutō as a human because only souls such as Shinigami and Arrancar could use it. But he simply made up a theory:

The Being that made him Transmigrate simply alter the reality by making the Zanpakutō usable to humans. So, maybe that's why the spirit of Ryujin Jakka considers his previous master a human.

And he already knew from the manga of Bleach, that by the way he finished, left Yamamoto because he was tired of being used for household chores like cooking food and keeping Yamamoto warm, or at least that was what theorized by Shunsui Kyōraku.

'Maybe he… it is just a battle maniac?' After a moment of thinking, Shiro said, "Well… My goal in this life is to be the strongest. So if you stay, we, together, will have countless battles."

"Did you say battles?" the haughtiness of the voice dropped for a moment, but it quickly returned, "*Cough*. Well, your goal is noble. Therefore, I decided to help you in your journey. But if you want to acquire all my powers, you have to work hard." Shiro was surprised that he gained its recognition that simply. Maybe because it was really a battle maniac? no one knows.

And like that, Shiro Uchiha gained the recognition of Ryujin Jakka.