Shinji said, "Come with me."
He could now teach Sasuke the reward he had received for Sasuke becoming his disciple.
With that, Shinji stood up and led Sasuke to the stream outside the training ground.
Fire Release: Flame Bullet!
Shinji quickly formed hand signs with both hands, then opened his mouth and spewed out flames even hotter than the Fire Release: Great Fireball Technique.
The flame bullet instantly evaporated the small stream in front of them. White smoke rose from the ground where the water had stopped flowing.
"Amazing!" Sasuke exclaimed, looking at the section of the stream slowly covered by water from upstream.
Its destructive power was greater than Fire Release: Great Fireball Technique, and the burning temperature was very high.
"Fire Release: Flame Bullet, its greater power compared to Fire Release: Great Fireball Technique is actually due to the need to use oil."
As Shinji spoke, he took out a small bottle of liquid from his sleeve and placed it in Sasuke's hand.
"Practice a bit. If you control the timing well, it's not difficult, and the advantage is that the damage range will be wider."
"If it gets on an enemy, it can achieve a continuous burning effect."
Sasuke looked at the small oil bottle in his hand with curiosity, shaking it occasionally. He had never thought that Ninjutsu could be combined in such a way before.
Shinji interrupted Sasuke's fantasy. "This is a small trick, after all, one bottle might not even last you three uses. Unless you have the assistance of a summoning beast or some special ninja tools, you can't use it much."
Unless one had the toad oil supply from Mount Myōboku like Jiraiya, ordinary people could only carry such a small bottle. As for sealing it in a scroll, that was another price.
Those storage scrolls were not cheap. Throughout the series, only Tenten, that little rich girl, could use them without worry.
"This is a drawback of Fire Release: Flame Bullet, and for the user, they need to grasp the timing well, otherwise they might accidentally injure themselves with their own Ninjutsu."
Shinji took the small oil bottle from Sasuke's hand and used the Ninjutsu again. This time, he deliberately slowed down his movements so Sasuke could see clearly.
Shinji said, shaking the oil bottle, "When performing the technique, you need to control the timing of using the small oil bottle well. And it's best not to use it in damp places, otherwise its power will be greatly reduced."
The reason its power would be reduced was because the amount of oil was not much. If there was a large amount, he could even burn a waterfall.
Sasuke nodded, not showing any disdain for this technique. After all, if used well, it could save Chakra. Moreover, the use of a technique mainly depended on the situation in which the user applied it.
He believed he wouldn't be so foolish as to be accidentally injured by the technique or have its power reduced due to external factors.
"You try it, Sasuke."
Shinji pulled out the last bottle from his ninja tool pouch and handed it to Sasuke, stepping back a little to let Sasuke demonstrate.
Sasuke followed the hand signs Shinji had just performed, slowly forming them, with the small oil bottle in his sleeve ready at any moment.
Fire Release: Flame Bullet!
Sasuke took a deep breath, opened his mouth and spat out scorching flames, while the small oil bottle in his sleeve released a precise amount of oil at just the right moment.
With the added oil, the flame bullet burned even more fiercely, spraying towards the stream.
Although the flames were scorching, their power was considerably less than Shinji's flame bullet just now. The stream only steamed from being evaporated, and the next second it was covered again by the water flowing down from upstream.
Sasuke frowned, wondering what he had not done correctly just now.
Shinji pointed out some flaws in Sasuke's use of the Ninjutsu just now, "The Nature Transformation for releasing the flame bullet wasn't high enough. Although the oil bottle was squeezed at the right time, you were too cautious, and the amount was too little."
Performing Ninjutsu not only required Chakra control, but also precise Nature Transformation. Although it seemed easy, when actually put into practice, it was not as simple as it looked.
This required years of practice, or a sufficient understanding of Nature Transformation and extremely high demands on Chakra control.
Simply put, talent aside, it was all about practice. Over time, one could achieve mastery.
"Thank you, sensei." Sasuke nodded, not curious about Shinji's ability to instantly spot his shortcomings.
After all, during this period, Shinji's strength had already earned Sasuke's great admiration.
Not only Fire Release and similar techniques, but he also had some understanding of Wind Release and the extremely rare Yang Release and Yin Release. Furthermore, his Taijutsu was not bad either.
Sasuke even felt that Shinji's strength was a bit too great for him to merely be a teacher at the Academy.
However, it also had to be said that Shinji had a very clear approach to teaching.
Often, when listening to others, Sasuke still had to figure things out himself, but Shinji would directly point them out. And he would also offer advice on how to do things more conveniently.
[Detected Sasuke's trust level has increased to Advanced. Reward: Fire Release Nature Transformation (Master)]
Shinji was not surprised. With Sasuke's trust level increasing to Advanced, it was now basically on par with Shikamaru and the others. Moreover, among all his current disciples, only Naruto's trust level was the highest, one could even say it was off the charts.
Shinji estimated that it wouldn't be so easy for trust level to increase once it reached the Advanced level. After all, not everyone was Naruto, who would pour their heart out for a little bit of care.
Anyway, there was still plenty of time, and Shinji was confident in improving his relationship with these disciples.
Bonds were not formed by small favors and benefits. They were often forged through years of companionship and care, connecting people.
However, if Sasuke's trust in him reached the highest level, should he then stab Sasuke?
Or feign death in front of him, would that prompt Sasuke to awaken his eyes?
This thought inexplicably popped into Shinji's mind, and he immediately suppressed it the next second.
That was close, he almost turned into Orochimaro.
When Sasuke got serious, he would kill his teacher. If he were to do that, Sasuke might awaken his eyes and think he was capable, then secretly give him a big surprise.
Sasuke looked at Shinji with a strange expression. He just felt that his teacher seemed to be thinking something odd or very rude.
Could it be?
Does everyone who spends a lot of time with Naruto become like this?
Sasuke quickly shook his head. It seemed he would have to keep his distance from Naruto later. He didn't want to become an idiot.
By the stream, the thoughts of the teacher and disciple took such an illogical turn.
Shinji said, patting his personal ninja tool pouch, "Sasuke, you can practice the rest when you go home, as the flame bullet technique requires oil. I don't have any left now."
Sasuke nodded, putting away the small oil bottle Shinji had given him, as this little gadget was quite good.
Sasuke, having put away the small oil bottle, immediately asked, "Sensei, how much do you know about Fire Release Nature Transformation?"
His father had explicitly told him to trust Shinji without reservation.
Shinji, who had just gained mastery in Fire Release Nature Transformation, replied, "It's alright, I have recently made some gains."