Hello, guys, I would like first to thank you all for your support and comments, and next I want to clarify one thing.
The MC of this fanfic doesn't know anything about Naruto or that she was reincarnated in the Naruto universe. All she knows is that she had been reincarnated in a magical world. After all, she was a female US soldier; she didn't have time to chill out and read manga or comics. She could only watch movies occasionally when she had free time.
I hope this answer satisfies you all.
I also want to thank the advice that one of the readers gave me about writing longer chapters. If I have a chance to write a longer chapter in the future, I will definitely do it, but I am really busy with life these days. In order for me to be able to upload a new chapter on a regular basis, I need to write a smaller chapter. I hope that all of you understand.
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Next day
7 a.m
Yukina and Koko arrived at the classroom at 7 a.m.
All the seats were taken in the classroom except for the two seats in the back corner of the class, so Yukina and Koko decided to sit there.
A few minutes later Shinji entered the classroom; he nodded his head in satisfaction when he saw all the students were present.
He then said to his new students, "Good, none of you are late today. Now all of you follow me to the training ground."
After the students heard Shinji's order, they all stood up, including Yukina, and they followed Shinji to the academy training ground.
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In the training ground
Shinji looked at his students and said, "The first thing I'm going to teach you today is how to access your chakra. I will only give you an hour to try to access your chakra. Even if you fail to unlock your chakra, don't be discouraged; some people take many hours to be able to unlock their chakra. However, if you couldn't unlock your chakra before class tomorrow, you will be severely punished."
Shinji then unleashed his killing intent at his students, and all the students faces turned pale in fright when they sensed Shinji's killing intent, except for Yukina, who smiled in interest when she sensed Shinji's killing intent.
Shinji had noticed this, and he was surprised at that. He then pointed his finger at Yukina and asked, "You girl, what is your name?"
Yukina stepped forward and answered Shinji respectfully, "Sensei, my name is Yukina ."
Shinji nodded his head in satisfaction and thought, "This girl is quite interesting; she didn't even flinch when I released my killing intent. She is a good prospect; this is good news for us."
He then addresses his students, "Before you all try and access your chakra, I will explain briefly what chakra is to you, so pay attention. I hate repeating myself."
All the students paid attention to Shinji as he started explaining, "Chakra is the energy that dwells inside every living creature. By using chakra, we can strengthen our body, make our attacks more powerful, increase our speed, and execute many shinobi arts. Any questions?"
All the students shook their heads, and Shinji nodded his head in satisfaction. He then continued, "In order to access chakra, you need first to start meditating and look deep inside your core."
"You will feel a warm sensation coming from your core. This warm sensation is your chakra. All you need to do is use your mind to grab this warm sensation."
Yukina and the students nodded their heads in understanding after they then quickly sat on the ground, closed their eyes, and started following Shinji's instructions.
After 5 minutes a bright blue aura erupted from Yukina and pressed down on all the students Shinji was shocked when he saw this.
"SWOOOSH."
When Shinji sensed Yukina's chakra, he yelled to himself in shock, "This girl has a high genin chakra reserve. How is this possible? She looks like she's 6 or 7 years old."
When Shinji saw all the students were struggling from the chakra that Yukina was releasing, he yelled at Yukina, "Yukina, calm down and try to stop accessing your chakra."
Yukina followed Shinji's instructions immediately after hearing his order, and she stopped accessing her chakra.
Shinji smirked when he saw this and said to himself, "With just this small hint, she was able to figure out how to stop accessing her chakra. That is great. Our village will produce another genius. If she survives the graduation exam, I need to report this to the other instructors in the advanced class in the future so they focus on nurturing her when she transfers to the advanced class."
After half an hour, the fat boy was able to access his chakra, and Shinji guided him on how to stop accessing his chakra.
However, unlike Yukina, Shinji instructed him step by step on how to stop accessing his chakra.
At the end only Yukina and the fat boy were able to access chakra.
Shinji then looked at his students and said, "That's enough. You can try and access chakra later. Now I will teach you how to throw kunai and shuriken properly."
All the students were excited after hearing this. Shinji then took out a kunai from his kunai pouch and walked towards one of the targets practice in the training ground.
He then addresses his students, "Since you are all beginners, the first thing you need to do is to master the basic kunai throwing stance. Watch my stance carefully and try to copy my stance."
Yukina and all the students watched Shinji's kunai-throwing stance, and they mimicked his stance.
"SWISH."
Shinji then threw the kunai, and the kunai hit the target dead in the center.
He then turned to his students and said, "When you throw kunais or shurikens, you need to use your wrist; never forget that. Now start practicing until I say stop."
Yukina and the rest of the students nodded to Shinji. He then started dividing his students into ten groups, each group consisting of ten students.
The students then started practicing throwing kunai at the targets in the training ground, and Shinji corrected the students form each time.
When Yukina's turn came, Shinji was surprised when he saw her form, stance, and throwing motion were perfect. He then said to himself, "The girl is a genius, good, very good."
After an hour, the students started feeling pain in their wrists. When Shinji noticed this, he yelled, "That's enough for now. Let's go back to the classroom; follow me."
Shinji then turned around and started walking back to the classroom; all his students, including Yukina, followed Shinji back to the classroom.