Naruto's Twin sister Hina

[ AUTHOR - This chapter will be big compared to previous chapters. Please read slowly since it has some complex parts explaining Hinata's training. Hope you guys enjoy this. ]

2 Months before the Chunin Exam.

Kurenai Yūhi, "Hinata Hyuga, your biggest advantage compared to others is yours Byakugan. If you use techniques combined with Byakugan you will become stronger." 

Hinata Hyuga," Yes Sensei."

Kurenai Yūhi," Let's start from basics. BYAKUGAN. Individuals with a Byakugan have a near-360º field of vision around themselves, save for a small blindspot at the back of the neck above the first thoracic vertebra ( Spinal cord below neck above hip). Since you can activate byakugan you should have experienced this blind spot. Always keep that blind spot in your mind"

Hinata Hyuga," Yes Sensei. I'm aware of it." 

Kurenai Yūhi," Moving on, The byakugan's vision can penetrate almost any object, allowing users to see through walls, peer underground, or even examine the contents of a person's body. But that doesn't mean opponents can't counter you." 

Kurenai Yūhi took two smoke screen bombs from the bag. 

Kurenai Yūhi," As you already know these are smoke screen bombs to blind opponent's visibility."

Kurenai Yūhi throws one of the smoke bombs on the ground releasing white smoke on its impact with the ground. Kurenai moved through the smoke screen and attacked Hinata Hyuga. But Hinata defended perfectly as she activated her byakugan.

Kurenai Yūhi," Good use of byakugan. Let's try it one more time." 

Kurenai Yūhi throws the second smoke screen on the ground releasing the same white color smoke. Kurenai moved through the smoke screen perfectly and attacked Hinata Hyaga. Unable to defend Hinata got thrown into the air and impacted the ground.

Kurenai Yūhi," What happened Hinata? " 

Hinata Hyaga," Sensei, something is wrong. I can't see through the smoke screen even after activating Byakugan." 

'Byakugan must have been able to see anything through. But why can't I see through this smoke screen'' Hinata was confused.

Kurenai Yūhi," Normally you should have been able to see through the smoke screen but this smoke bomb is different. Byakugan can't penetrate through this smoke bomb screen. These smokescreens comprise a particular mineral dust that can act as a barrier to byakugan. It was developed during the Third Great Ninja War to counter Byakugan users. Byakugan is your biggest strength Hinata and at the same time, it can be your fatal weakness. Don't rely too much on byakugan. To overcome this weakness you have to know how to combat without using byakugan. Now we are going to start a drill in which you are forbidden from using byakugan. To counter this kind of smoke bomb you need to develop your sense of hearing."

Hinata Hyuga," What should I need to do Sensei?"

Kurenai Yūhi," Blindfold training. Let me blindfold you. Now let's start our duel. All you need to do is defend the surprise attack. Sound is the key. Try to listen to the wind, footsteps anything you can hear."

[ AUTHOR: Hinata is a good girl who won't cheat using byakugan while training. So please don't bring this up. ] 

With that, Kurenai Yūhi and Hinata Hyuga started their training. Hinata was brutally attacked by Kurenai. Unable to defend, she got all the hits on her body. She fell down.

'Pain.. Pain... Pain all over the body. But it's ok. If I want to catch up to Naruto I have to do it. I will do it.' 

Hinata never got discouraged. She stands up again. The drill started again. She got hit all over her body again. The drill got more vigorous.

At the end of the drill with every hit on vital points, she collapsed on the ground unable to endure the pain further.

Kurenai Yūhi," Forgive me Hinata, This is the fastest way for you to train." 

Kurenai carried Hinata back to the main House of the Hyuga clan ( Hinata's home). There she meets Hiashi Hyuga, the head of the Hyuga clan. He didn't even flinch on seeing his daughter's state ( Hinata ).

Kurenai Yuhi, "I thought you would question me on the clan princess training?"

Hiashi Hyuga," There is no point in training if it is not strict. She just collapsed. She will wake after a few hours of sleep." with a stern face.

Kurenai Yūhi, "In this case, can I increase the training intensity?"

Hiashi Hyuga," As long as she is not fatally injured, I don't care" 

Kurenai Yūhi, "Ok."

 'He definitely loves Hinata but not showing on his face. It must be difficult to be a father like him who cares inside and is tough on the outside.'

With that Kurenai left the Main house of the Hyuga clan.

Hiashi Hyuga," Daughter, this father can't be lenient with you. Because strength is everything in this world. You can't protect your loved ones in this world without strength. So my daughter, Forgive this father for not showing love towards you." 

Hiashi Hyuga shows a beautiful smile while taking his daughter to her room so that she can rest comfortably.

With that, the day comes to an end.

The drill to enhance the detection took almost a whole week. The drill intensity increases every day. At the end of each day, she collapses. But her detection and the response to the sound increased drastically through the week.

On the 9th day, Hinata got a good sense of detecting sound. She is now capable of surviving the Screen bomb for almost a minute.

Kurenai Yūhi," To truly become an expert in the detection of sound it will take years. But for now, our priority is to survive a screen bomb for a minute without byakugan. You are now capable of this. So let's move on to the next phase of the training."

Kurenai Yūhi," Let's continue about byakugan from where we left. The Byakugan can see chakra to a greater degree than the Sharingan. This enables users to distinguish certain types of clones from their original and even identify specific individuals' chakra signatures. Its ability to see the chakra is acute enough to see the chakra pathway system within a target's body and the 361 tenketsu that run along it. If you were wondering what tenketsu is, it means chakra points (pressure points). Tenketsu is nodes from which chakra can be released. The human body has 361 tenketsu, each of which is located along the chakra pathway system. Most ninja, even experienced jōnin, are only able to release chakra from the tenketsu on their hands or feet in order to perform jutsu."

Kurenai Yūhi," This drill is all about the Gentle Fist Technique which is a specialty of the Hyuga clan. Gentle Fist Technique is a technique created based on tenketsu. The Gentle Fist is a form of hand-to-hand combat used by members of the Hyūga clan. It inflicts internal damage through attacking the body's Chakra Pathway System, subsequently injuring organs which are closely intertwined with the area of the network which has been struck. To do this, the user surgically injects a certain amount of their own chakra into the opponent's chakra pathway system, causing damage to surrounding organs due to their proximity to the chakra circulatory system. Even the slightest tap can cause severe internal damage, hence the name "gentle" fist."

Kurenai Yūhi," By employing the use of the Byakugan, an experienced user can target the tenketsu, thus enhancing the havoc and control a Gentle Fist practitioner can impose upon an opponent's chakra network. These 361 nodes are key gate-keeping interceptions in the chakra circulatory network, thus forcibly opening or sealing them in whatever manner the Gentle Fist user sees fit, is a powerful tactical option to have. The affected person's chakra flow can either be increased or disrupted completely, preventing them from using techniques"

Kurenai Yūhi," Hinata we worked on the byakugan weakness. Now we will work on its strength, Gentle Fist Technique. I'm not the best person for you to practice Gentle Fist Technique with. That's why I brought him. Clan Leader, please show yourself" 

Hiashi Hyuga appeared from the shadow of the Forest tree around the training.

Hinata Hyuga," Dad?" 

Hiashi Hyuga," Gentle Fist Technique is our clan specialty. I am the best option for you." 

Hinata Hyuga," Dad, Won't you be busy with clan duties?" 

Hiashi Hyuga," Don't worry about it."

Kurenai thought was running wild.

'Clan Leader why don't you just say that you love your daughter so much that you want to help your daughter with your busy schedule'

Kurenai didn't say anything and just left the training to Hiashi Hyuga.

Hiashi Hyuga," Hinata, Gentle Fist technique is all about how accurately you hit the chakra points (Tenketsu). I have brought a demo body with its chakra points marked. Try to hit the chakra points as accurately as possible. Your hit also gets marked in this demo doll"

Hinata Hyuga," Yes Dad"

Hinata started to throw punches at the chakra points continuously for a few seconds. 

Hiashi Hyuga," Stop."

The moment Hinata stopped there were markings visible on the demo body. These markings indicate the Hinata's attack. The marks indicate the attacks are not accurately hitting the chakra points and also there are several marks from the single Hinata attack. Hiashi Hyuga took a cloth and wiped out all the markings from the demo body.

Hiashi Hyuga," Hinata let me demonstrate the Gentle Fist technique"

Hiashi Hyuga demonstrated the technique. He made his demonstration slow so that his daughter could understand what was happening. After the demonstration, the markings in the demo body are very clear. These are single-point markings only on the chakra points. Again Hiashi Hyuga took the cloth to clear the markings.

Hiashi Hyuga," Normally when we attack we use a fist or two, or three fingers to impact the opponent but in the Gentle Fist Technique, only one finger should touch the chakra points. If you look at your fingers you can see the middle finger is the tallest. Try to use it to attack the chakra points" 

'I have been doing this all wrong. Indeed father's technique is clean and deadly while mine is shabby. I need to work harder and harder and harder so that I can catch up to Naruto. Anyway, how does Dad know my middle finger is the tallest?' she wonders

[ AUTHOR: Every person has a different finger as the tallest]

This time there are only single-point marks all over the demo body with missed chakra points. Hinata continued to work tirelessly under Hiashi Hyuga. Even at Night, she practices the Gentle Fist Technique in the main house of the Hyuga clan with a single thought of catching up to Naruto.

With a week to go before the start of the Chunin Exam.

Hiashi Hyuga," Finally you mastered this technique"

Hinata Hyuga is ready for the Chunin Exam.

Hiashi Hyuga murmured,' Hinata there is also another part of training. Using legs to reach the opponent's chakra points located on the legs. Since time is short we will postpone it to the future.' 

[ Author - Demo body is like a chalkboard in school. You can erase the marking after the use]