Days is passing by and no major events happening, just like that another 4 months passed, and only three months left before the end of the second year of Yuta's academy and it will be the time when Yuta will ask for early graduation, along with Itachi.
'Well, maybe it will be two years in this timeline, but for me it will be six years, and it will be even more when I create another time-loop to practice jutsu that I have learned since last time.'
Yuta's physical energy and strength is growing gradually all this time, but still can be only considered a top-Genin level, it needs just a little more for Yuta to reach the low-Chunin level in this department.
Yuta spend all the time focusing on his intense physical training, gradually increasing the weights amount on his weights training seals. He didn't learned anything new in this 4 months with Itachi either, and mainly focused on improving his basics while training with Itachi.
Yuta feels like he needs one last push to reach the chakra amount requirement for Shadow Clone jutsu, and he decided to create the time-loop to master the Shunshin technique and spend some time to practice more his sensory technique, in his opinion, that should be barely enough to reach the chakra requirement for learning the Shadow Clone jutsu.
After deciding this, Yuta stopped his physical training completely, as he will return to this exact point later, and started practicing Shunshin jutsu. When Yuta is out of chakra, he starts meditating or trying to design a new Fuinjutsu seals.
Designing a new Fuinjutsu seals is very complicated task right now for Yuta, as he lacks the more advanced materials on Fuinjutsu, the academy library only contains scrolls that covers the basics and had only a few examples of seals.
With only that knowledge it's hard for Yuta to design something advanced really, but it is not like there is a better ways to spend time between jutsu training sessions while waiting for chakra to replenish.
After a first month of this training, Yuta managed to get rid of the hand seals for Shunshin jutsu, but the time needed for performing the jutsu is increased with that. With the first months is passed, Yuta traveled a month back in time, back to the starting point, and continued his training with jutsu.
At the end of the second month Yuta is able to perform Shunshin jutsu pretty fast, and precision of his movement is increased as he start to getting the hang of it. Now he can move up to 50 meters with it, but only in a straight line, as maneuvering in such extreme speed is almost impossible without the Sharingan.
With that Yuta decided to spend another month to fully polish his mastery of Shunshin jutsu, that should be enough for him to reach the chakra requirements for the Shadow Clone jutsu, and with that he will be able to practice it next, with the addition of Hell Viewing genjutsu technique.
Yuta traveled a month back again and spend the third month practicing Shunshin jutsu. Yuta's progress with jutsu performance becomes slower and slower, and with that Yuta labeled the Shunshin jutsu as fully mastered.
'Well now that I spent three whole months practicing Shunshin, I have become more used to it. The disorientation on the exit point of body flicker is becoming less and less, I still can't use it to come closer to the enemy because of disorientation, but if the exit point will be some distance away from the enemy, I should be safe with it.'
'I'm still not able to maneuver with it and only able to move in a straight line, but the distance is increased to 70m, and now to increase it further it will not depend on the mastery of the jutsu but rather on how well-trained my body is and on my chakra as well.'
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'There is not much point left to continue the focused training of the Shunshin jutsu, so it's time to return and ask Itachi for the Shadow Clone jutsu!'
With that Yuta ended his time-loop by traveling back a month once again, back to the starting point.
After returning Yuta resumed his physical training and after a few days he met with Itachi. As they met in usual spot of the academy training grounds Yuta directly asked Itachi, "I have met the chakra requirements for the Shadow Clone jutsu, I think I'm ready to learn it" he said to Itachi.
"I see" Itachi replied without surprise, as if he already was waiting to be asked for this. "Then I will teach you the Shadow Clone jutsu. As I said before, you need to be careful when performing it, if you don't have enough chakra the jutsu can kill you." Itachi said with serious tone.
"Also keep in mind that maintaining the jutsu also drains your chakra, as well as the chakra that you transferred to your clone. So until you get used to the jutsu, always double check your chakra reserves before performing it, and dispel your clone if you low on chakra before it drains you."
After saying all the warnings Itachi demonstrated the three basic hand seals for the Shadow Clone jutsu, as well as the final special hand seal with a cross-sign.
"This final hand seal must be new to you, Yuta, as far as I know it only used in the Shadow Clone jutsu, remember it well" Itachi said while demonstrating the cross-sign hand seal.
"You have to use exactly half of your chakra for this jutsu, later on you will be able to adjust how much you want to give your clone. Also when your chakra reserve will grow enough you will be able to split the chakra for creating multiple clones, but no more than five at a time."
After that Itachi proceed to explain more detailed specifics of the jutsu, like how chakra should be controlled, molded and moved inside the body and stuff like that, that shinobi need to know to perform the jutsu.
"Now try to perform it" Itachi said with expectant look.
'Sorry Itachi, but I don't think I can surprise you with my excellent ninjutsu performance right now. Like damn, the amount of chakra that I need to control and mold is nothing like I used to before that.'
'I doubt I even can do that without a few weeks of trying, I don't even know if I can control such a large amount of chakra at once.'
'Well, no way around it, let's go and embarrass ourselves in front of Itachi…'
"I will try, but I doubt I can do that in the first try." Yuta said with a sheepish smile.
Yuta performed hand seals desperately trying to not lose control of the large amount of chakra that he is molding for the Shadow Clone jutsu, but the miracle didn't happen and Yuta lost the control of partially molded chakra mid-way performing the jutsu, and with a large puff of smoke he wasted the half of his chakra reserve just like that.
Yuta continues standing without any motion, still with a hand seal in place, while looking forward without changing the concentrated expression on his face, as the smoke is gradually dispersing.
Itachi standing not far away from him remain silent for some time, and then he sighed and finally said, "You need to improve your chakra control, try to practice more with tree-climbing and water-walking exercises, maybe with some weights on." Itachi said somewhat disappointed.
"Yea, thanks, I will do just that" Yuta replied and then turns around and leaves without another word.
And with that the new training cycle in time-loop started for Yuta. Just as Itachi told him, Yuta started with chakra control exercises, but now with additional weights.
For the next month Yuta performed tree-climbing with additional weights, as well as water-walking with weights too.
When the month of chakra control training was over, Yuta experienced that his chakra control is improved, and by increasing the weights he still can improve it even more.
Yuta decided to continue with chakra control exercises for as long as he can gradually improve his chakra control. With that Yuta traveled a month back and continues.
After traveling one more time and spending a three months in total on chakra control training, the improvements started to diminish and now there is no point for Yuta to continue with it.
After that Yuta traveled a month back again and started his fourth month of training with Shadow Clone jutsu.
After this three months of training on chakra control, Yuta's chakra reserve grows even more, but not to the point when he will be able to create two shadow clones. But the biggest gain for Yuta was obviously the greatly increased chakra control.
After all, Yuta didn't train his chakra control for a long time, and back then when he trained it before the academy – his chakra reserve back then was a very little. And what can be considered a good chakra control back then, right now it's not that great anymore, and now this problem is finally fixed.