"...397, 398, DON'T GIVE UP ICHIMARU-KUN, YOU HAVE ENOUGH YOUTH POWER, 399, AAAAAND, 400. GOOD JOB!" - A black-haired man in his 30s shouted every word, while a young silver-haired boy did push-ups next to him.
"OMGG, remind me why I started training under him?!" - "Thank you Dai-sensei.
"Well done Ichimaru-Kun, the power of youth burns within you," an almost copy of a black-haired man said the same in a loud tone.
AGrh, I have to train my body, otherwise I will get the same injury as on my last mission. Even though I reattached my finger to my hand, it was still very uncomfortable.
In the last C-class mission, they had to defend a minister's wife. At first, everything was fine until they were attacked by a group of Missin-Nins, 2 of whom were special Jonins, as well as 2 Chunins and 1 Genin. Kushina took care of 2 Special Jonins because her team was still too weak to fight them (not all of them).
It was not very difficult to win against the rest of the Missing Nins, the Genin was attacked by Gonda's insects, Ichimaru and Yui attacked 2 Chunins, but before Gonda came to help them, Ichimaru's finger was cut off, they finished them off in 1 minute and helped Kushina. After this mission, he understood that a) he must deactivate the Gravity Seal when he fights, b) he must practice his Taijutsu techniques more.
His clan was not that skilled in Taijutsu, so he had to find a master outside the clan. In the village, there were a few dojos for kenjutsu and taijutsu, but they couldn't give him much in a short time. So he found the legendary Eternal Genin and his son and asked them to train him. Since they were friendly, he offered them a gravity suit ("Nothing is free, in any world. If it's free, then it's a trap, and if you can't see a trap, then you've already felt in one.'), they agreed. So 2 weeks ago he changed his training program.
In the past, he mainly focused on Mind > Soul > Fuin > Medicine, and he only trained his body with gravity. Because of this, he had a good physique, almost as good as a Jonin. However, he lacked technique and combat experience. Academic training was not enough, and with his team, he mostly focused on support.
Every day at 6 a.m., he went out with the Might family to train. Dai and Gay trained almost all day, but he didn't have that much time, so he just asked Dai to spar with him most of the time. With less gravity, he was able to keep up with Dai in speed, but Dai still had extra weight on his legs and hand, his pure speed was about 50-55% of Dai's pure speed. Due to his lack of experience, he couldn't win against him even once.
Another good thing was that Kushina taught him and his team ninjutsus. Thanks to his memorization and his ability to transform chakra into different elements, he learned almost every type of C-rank jutsu he could get his hands on. He could perform most of them easily, but the problem was the activation time and the amount of chakra needed to activate them. After a few years of daily practice, his chakra threads and CCG will adapt to this process, as he did with the Yin Transformation. He has been transforming his chakra daily for 9-10 years, so he is at the level of a master in mind techniques. He could already be at the level of a special Jonin, because for soul transformation he can leave his body and even create a clone, but he can only maintain his soul form for about 10 minutes. In Fuinjutsu, he's almost a master, he just needs to finish his last project and he can officially be one, but he doesn't want to draw attention to himself.
He spends more time doing Fuinjutsu than any other specialty. In the beginning it was hard to control chakra, to remember where to add which chakra and what structure to draw, but after he started to learn mind techniques, the second and third problems were solved, the first problem can never be solved, only improved. There's no limit to chakra control.
In medicine, his theoretical foundation was already better than Tsunade's or Orochimaru's, but in practice, he is inexperienced. Yes, he assists in some operations at the hospital, but he's always under supervision and is not allowed to perform an operation on his own. Who would allow a 12-year-old boy to perform an operation? Even though he is the nephew of Tsunade, the director. So he just knows a lot and has some practice, that's all.
That's why he waits for the war, because in the war he can get a lot, for example: Kekkei Genkais, secret techniques, knowledge and experience. He is almost finished with his project. His project has 3 parts. 1st part is to create a pocket dimension, which structure he placed on his body, he has already done this.
He spent 60-65% of the money he earned on the missions and from the family in the last 6 years to buy necessary materials for the dimension like cells, water, food, some furniture and so on, he even stole, *cough*, took some things from the village for some time.
When he was 10 years old, the police caught him stealing some papers from the library, but he said he was just training in stealing, he needed this skill to be a great ninja and in the future, he will be able to steal some important documents for the village. They believed him, what can you expect from a boy who stealthily takes a lot of papers from the library and then innocently explains the reasons behind his actions with the eyes of a cat from Shrek? Of course they believed like an idiot, did you want to read this? NOPE he was fined and warned not to do it again. But it was the disappointed faces of his father and mother that hurt him the most.
After that he started to live like a law-abiding kid, ... pff, nope, he continued to do the same, but he always monitored and planned his actions before he did them and no one caught him again. His dimension was expandable, meaning that if he put more chakra into the Fuin, it could grow, although he needed a lot of energy to do so.
The second part was entry points. As you already understood, there was a "door" on a small kunai and it worked. Now he could enter the dimension and leave it, the only disadvantage was that the kunai remained in the real world in the same place, so he came back in the same place and this was a bit dangerous, once he could come out inside the enemies, but he tried to make the second exit, the structure was almost finished, just before the Chunin exams he will finish the project.
The third part is the reverse summoning of the kunai, he didn't want to leave the door and Fuin technique to the enemies. Overall, his technique was like the Flying Thunder God technique, but slower because the user needs some time to open the second door. He wanted to make Flying Thunder God as well, but not now.
"Ichimaru-kun, are you planning to take the exams this year?" - Dai asked him.
"Yes Dai-sensei and you?" - Ichimaru asked curiously, he really wanted to know why he never passed the exam.
"Of course, I will definitely reach the final part this year. In the name of the POWER OF YOUTH." - Dai said with fire in his eyes, he sometimes enjoyed their character, they were like a light in the dark shinobi world, always positive and energetic.
"Guy-kun, in 3 years, you will graduate from the academy, right?" - Guy was Kakashi's age, so he knew that he was 3 years younger than him.
"No, I want to graduate next year, so I'm trying my best."
"Hoho, so early? Why did you decide that?" - He asked with a curious tone.
"Because my eternal rival finished it 3 years ago, and 2 years ago, he even became a Chunin, so I trained a lot to finish the academy as soon as possible." - Guy replied proudly.
"THIS IS MY SON. Ichimaru-kun, you also need to find a rival." - Dai said.
"Hahah, okay, I'll try, but after the exams." - He tried to avoid this topic, he didn't want to show his powers to anyone and fake a rival, hmmm, no it's too annoying and boring, so not in this life.
"GOOD, now let's go spar, but don't deactivate your seal today, only if you can't keep up, you can fight without the restriction."
"Okay." - He sighed, knowing that he would be training with his team VERY exhausted today, thanks to the Shadow Clones, he didn't go on the mission personally. Shadow Clones are not used in everyday life, because of its disadvantage, either you need to know how to separate a place in your mind for the returned information from a clone, or you need to be a Jinchuriki for whom it doesn't matter how much Yin Chakra comes back, as a real disadvantage becomes a tailed beast. The second reason is that shinobi think more about a fight than about using a ninjutsu in peaceful times.
After finishing his thoughts, he took his fighting stance, yes, HIS, he tried to create his style even though he had almost nothing at the moment, but he didn't rush it. Right now, the main idea of his style was, as a good fighter said, to BE WATER.
Dai looked at him and saw as usual that he didn't start to run, his speed was high, Ichimaru could hardly keep up with his reaction to his opponent's moves, he received a lot of punches and kicks, his every body part hurt, Dai's style was purely offensive, with only a few defensive moves, so he was a good opponent to learn with.
Punch to his face, in the fight he could block the pain signals, every medic could do the same, so he didn't lose concentration because of the punch. He caught Dai's leg in the air and pulled him towards him, this gave him a chance to hit his opponent in the corpse, but Dai blocked his right punch with crossed arms. Not only did he block the attack, he was also able to hold his fist with his hands, falling on top of him and rolling with him in one place without letting go of his hand, making a grab so that Ichimaru couldn't let go of his hand.
After that, they stood up and started again. Dai ran to him again and started to hit him from different positions, after a few blows, Ichimaru was able to perform some parry + counter moves as he adjusted to Dai's speed. However, he didn't have a good strategy against his legs, he could either dodge or grab them, so he worked on his coordination and dexterity. After 2 hours of training, they stopped and Ichimaru went to another training with his team. There, they practiced their teamwork and ninjutsus.
AGH, I'm so f****ng tired. I need to find a way to strengthen my body without constant training, maybe I should strengthen my body with Medical Chakra, like controlling muscles and constantly breaking and healing micro-fractures on bones. Hmmm, not now, but it's a good idea. I just don't know which parts to work on, I need to form my fighting style first, then I'll be able to do that. - He thought as he walked to the training area. - In a few weeks, there will be a Chunin test, I don't think it will be hard for me to pass, but I have to decide how much to show, EHH, after the test, I have to decide.