(A.N: you guys have to agree the image is fire right?)
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After two more hours of meditation, his chakra reserves were full. This time, he only created one shadow clone with 80% of his chakra. The clone did the same thing Kaida did initially—releasing different types of chakra from each hand and forming a fireball in the middle.
Though it didn't disperse immediately and stayed like that for some time, after five minutes, the clone made a small mistake, and the fireball extinguished.
The clone continued the exercise again and again, eventually succeeding in making the fireball stable for more than 30 minutes. Due to the low amount of chakra, it dispersed itself. When Kaida received the memory, he had around 60% chakra, so he continued his meditation. Afterward, he created another clone once his chakra reserves were full again.
This time, the clone had to make a fireball with one hand. Kaida decided to play it safe, as Yukihiro had said it might be risky. He made a clone with only 10% of his chakra. As soon as the clone started releasing both chakras from a single hand, its whole hand caught fire. The clone swiftly stopped the chakra release, and the fire died down.
However, due to the damage it had suffered from the fire, the clone was on its last legs, and one more such accident would have forcefully dispersed it. So, it dispersed itself, and Kaida received the memory.
'Since I am releasing normal chakra from my whole hand, when fire chakra was released, my whole hand caught fire. So, I have to try to release chakra only from my palm and avoid covering my palm with it.'
He made five more clones with 50% of his chakra, and all five of them began trying to release chakra from a single point in their hand. After some more minor accidents, they were able to make a fireball from their hand, though its size and shape left a lot to be desired.
Kaida was just happy that he had learned shadow clone before this; otherwise, he would have been admitted to the hospital by now. Leaving depressing thoughts behind, he made five more clones, and they all resumed training while Kaida started meditating.
For the entire day, he kept making clones as they continued to take damage from minor accidents during the training period. At 5 PM, Yukihiro approached Kaida and said,
"Kaida, you can stop for today. It's already 5 PM. You are making very fast progress, so there's no need to rush. You should also take appropriate rest."
"Yes, sensei," Kaida said.
He dispersed all of his clones and headed toward the gate, where Yomi was already waiting for him.
"So, Kaida, how was your day? Did you make any progress in training?"
"Yeah, I'm on the third part of the training. I think I'll be able to complete it by tomorrow. What about you?"
"Well, I barely completed my first step and started the second one today. But the problem is lightning chakra is very random and hard to control. The more I try to project it toward a particular direction, the harder it becomes. I wish I had the fire attribute," Yomi said.
"Hahaha, and I wish I had lightning chakra, as it would have made me super powerful. Yomi, we've already discussed this multiple times. The results of the training will make the effort worth it, so do your best."
"YES, SIR," Yomi said with a mock salute.
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After repeating the same routine as yesterday, they woke up at 4 AM again, fully refreshed after 10 hours of sleep. After completing their morning routine, they ran toward the training area, followed by morning exercise until 5 AM.
At 5 AM, their sensei arrived, and they started their training again. Since Kaida already had some training in making a fireball with one hand, he simply made 10 shadow clones and began meditating. All of his shadow clones started the training.
After three hours, he dispersed all of his clones and made a single clone with 90% of his chakra. Since the goal of the exercise was not to make the fireball but to sustain it for the longest time possible, he meditated while his clone concentrated on making a fireball and reducing any slip-ups. After 30 hours of practice using 10 shadow clones for 3 hours each, Kaida had enough experience to know the different ways mistakes could occur during this exercise.
So now, his clone was trying not to make any of those mistakes, which was difficult in itself since the number of potential errors was in the triple digits.
After another two hours, Kaida dispersed the clone and made a new one with 80% of his chakra. By the time this clone dispersed itself, Kaida was pretty confident that he would no longer make any major mistakes.
He came into direct view of Yukihiro and made a fireball using only one hand. This was his first time making a fireball by himself and not using a clone, but due to the memory transfer, it felt like he had practiced this countless times.
A fireball the size of a cricket ball formed in Kaida's hand, which he slowly increased in size until it resembled a football. After some time,
he once again reduced the size of the fireball until it resembled a cricket ball and maintained it at that size for an hour straight. After that, he made a slip-up, causing a small blast, which slightly burned his palm.
Yukihiro used the Body Flicker Jutsu and arrived in front of Kaida. With a wave of his hand, he sent a wind wave that extinguished all residual fire and took a close look at Kaida's hand.
"Hoh! Luckily, it didn't get burned seriously," Yukihiro said as his hand started glowing green. He placed it above Kaida's hand, and the burn injuries healed at a rapid pace. Seeing this, Kaida asked,
"Sensei, what is this?"
"Well, it's a handy medical jutsu known as the Mystical Palm Technique. It can be learned by any ninja, but if you want to learn more, you'll have to become a medical ninja. But that's not important right now.
Kaida, I already told you there's no need to rush. You can take your time and practice slowly. You've made significant progress in just two days, but this act was simply reckless.
You should stick with using shadow clones until you're sure there's no chance of any mistakes. This applies not just to this training, but to all future training as well. There's no need to hurry, okay?"
"Yes, sensei," Kaida said, this time truly serious, as even though his injuries were healed, the pain from the burn was pretty bad. Just the thought of what could have happened if the fireball had exploded in his hand when it was the size of a football...
"Good. That's enough for today. You can go back," Yukihiro said and left.
Kaida made his way toward the exit gate, where Yomi was already standing.
"Why are you looking so down, Kaida?"
"Well, I had a minor accident today. You should also be careful while practicing something new.
Ugh! I can't believe I was telling you not to rush, but I was recklessly trying to do something myself just because it looked cool."
Seeing Kaida so down, Yomi understood that something bad must have happened.
"Kaida, tell me exactly what happened."
Kaida told her exactly what had happened and how he tried to make a fireball when he wasn't ready. After hearing that he was all healed up now, Yomi sighed in relief. Afterward, they both promised to support each other so that they wouldn't be reckless anymore.
For the next three days, Kaida and Yomi stuck with their current exercises. After three days, Yomi was able to successfully shrink the leaf before it touched the ground. In the next step, she had to produce lightning from her hand without getting zapped by it—the most important and hardest part of her training.
On the other hand, Kaida was able to make and maintain a fireball on the second day but still trained for an extra day using shadow clones to be sure.
Now, he could make a fireball as easily as he could perform the tree-walking exercise, though he still had to concentrate on it. However, it became significantly easier to maintain a fireball.
On the fourth day, he went to Yukihiro and said,
"Sensei, I think I'm ready."
"OK, you can show me."
Kaida once again moved his hand forward, and a fireball emerged in his hand. After changing its size twice, Kaida maintained that fireball for three and a half hours. After that, his chakra became very low, so he had to stop.
"Very good. Your fire chakra control has improved to a satisfactory level. Now we can start with wind chakra control."
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(A.N: Thanks for reading ^~^)