Chapter 30

--- A/N ---

The second chapter is here guys!

Thanks to all of you guys again! Have a nice day!

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*Swoosh* *Swoosh* *Swoosh*

Duy kicked and punched me with all of his strength but every attack he did were easily evaded. As I evade, tens of plants on our surroundings were being broken in the process due to the gale his kicks and punches brought. He said "Be Careful Haru-Sensei! I will be using my technique now"

I smiled and said "Stop talking and bring it on then!"

Mighty Duy smirked and shouted as green aura enveloped him. He muttered "First Gate Open! Gate of Opening!"

Duy Bolted to me and kick me on my head. I used one of my arm to defend but he grinned and changed the direction of his attack by kicking the air. He created a sonic boom right beside my ears as he used the hardened air to rotate on another direction. The sonic book condensed the air and created a small mist on my head which Duy used to his advantage. Instead of using another flying round house kick, He did a front push kick directed on my head.

Unaware, My hand suddenly came out of the mist and catched his kick. My grip is so hard as he struggled escaping my hand. He looked at his feet as he saw my hand lifting him up. He know that I will bring him down with all my strength so he quickly removed the shoes I am clutching before jumping several meters away from him.

I am satisfied by his judgement so I tried provoking him. I threw his shoes to him and Asked "Since when did you cleaned you shoes? It stinks you know?"

Duys saw through my provocation and calmly said as he fixed his shoes "Sorry about that sensei, I don't have time for that!"

He bolted to me again, Intending to punch my gut. I hardened my stomach as I brought my fist down to his head. My attack is much faster and connected to his face. His face is borrowed on the ground as his fist connected to my stomach. Two dull sound was produced from the interaction and only me came out unscratched. I jump away from him and waited for his next move.

He shook his head and dusted himself as he slowly regain his balance. He said "My attack is still ineffective to you Sensei!! I will up my game then! Second Gate! Gate of Healing!"

The green aura on him intensifies as another power wash over him. Mist started coming out of him and envelope our surroundings showing how much heat he produce. I smiled at him and closed my eyes as I am using my hearing to see around me. He stamped on the ground before disappearing on his previous position. He reappeared again bellow me, ready to do an Upper-cut.

I reacted to his action and redirected it as it created a strong gale and a shock wave to boot. My smile is still present as He attacked me with different attacks I taught him. Upper-cut, Overhead Spin kick, Jab, Axe kick, low sweep, Hook and many more. He also attacks at different blind spots I taught him, such as at the back of the head, behind the knee cap, and many more.

He can see that I can still cope up with him so he up the intensity of our fight and opened another gate. He used it to try injuring me and caught me unguard but every attack of his were futile.

Every punches and kicks he gave me where blocked, evaded or even redirected. The intensity of his attacks can kill average chunnins and it shows the lethality of his attacks, He never hold back on his attacks. I never used any jutsus and only used Taijutsu to attack directly in this fight. I only countered when needed as I observed his attacks. My smile intensifies as I can see that his perseverance is showing off now. With his current strength now, He can fight or even kill a Jounin ninja with some more extra strength to fight another one.

I enjoyed the strength he gives off when he is using this Hachimon Jutsu of his. This Hachimon is really like that of the Kaioken. Both are techniques that increase the user's strength in fold but also put great stress to the user's body. Only few people can master them and can lead to severe consequences when overused. Look at how beaten Mighty Guy and Son Goku are after they used These Techniques. They are powerful techniques that is useful in the beginning but are double edge swords in the long run.

They also have the same effect of producing Red aura or color any part of their body to red due to the overload of Chakra/Ki. If you look at it carefully, They uses their Chakra/Ki to forcefully open their nodes which made their Chakra/Ki berserk and being expelled in their body violently to fastly prevent damaging your body. The more they use the technique, The more their body take its toll due to the accumulated berserk energy in their body. That is the reason why masters of this techniques cautions their disciples the consequences of this kind of techniques.

For short, It is a very good technique to use in a fight but have a severe consequences depends on how long you've used it. Goku and Guy were living examples on this. They almost died using this technique to a certain level. I am sure that if an Otsutsuki used this, They can easily endure it much longer the consequences of these techniques due to their a unique body. Guy and Duy, In the canon, almost died or even died due to the limitations of their body. If they can surpass that then maybe they can be saved from overusing this kind of techniques.

Duy jumped back and created a distance between us. He said "Yosh! I will use my strongest attack now sensei! This attack can clear anything in a hundred meter distance! Beware now sensei!"

He opened up his stance before placing his palm together on the right side of his hip. Suddenly, chakra came out of his two palms and was molded in-between his palms. He shouted "KAAA! MEEE! KAAAA! MEEEEEE! H-"

I threw a Ki bomb at him while he is creating a technique I taught him in my my boredom. It is just an experiment of mine yet the result is quite interesting.

I said to him "You really never learn Duy! When you are in a fight, never talk unless you are interrogating someone! That attack is powerful but your control is still weak since you need to finish controlling this attack in 10 seconds."

As I am talking, He punched me in my face before kicking in my crotch. I grin to him and ask "Where is your honor Duy? I am not yet done talking and you are attacking me. That is disrespectful!"

Duy replied "Like hell you have one sensei! You didn't even let me finish my finishing attack! Do you think I care about respecting you! And you even told me that I should always take opportunity in a fight!"

I blocked his fist directed to my head with a smile on my face. I am satisfied with his attack and said "Let us end it here. You are already exhausted. Overusing that technique can kill you if you didn't limit your usage of it."

He stopped the Hachimon technique which made fatigue wash over his body. He dropped down the ground as he gasp for air. Hana immediately appeared beside him and healed his injuries. Hana gave him water to drink which he drank with enthusiasm. He said to Hana "*Pant* *Pant* Thanks Hana-san, this really helps a lot.*Pant*"

He continued "By the way master, How was it? How is my improvement?"

I said to Duy beside me as I am looking at the fight happening just hundred of meters away from us "You actually improved a lot especially your physical prowess. You can contend to any average Chunnins with just the use of your Physical prowess without even using your Hachimon Technique. If you used your technique, you can contend to average jounins or even kill them if you have your chance. Even so, that technique of yours damages your body especially when you use it to certain limit without restrains. Even if you limit your use of that technique, The damages on your body, eternally or internally, will accumulate in the future and cripple you if it is not treated immediately. That is why I am limiting you on using this technique unless you don't have a choice. I already read some books talking about Hachimon users and found some users saying that this Technique should be used to protect something dear to you. Nevertheless, don't use it unless you are in a pinch okay? Using that can kill you anytime."

(A/N: According to my research, Duy is not the creator of Hachimon Technique since Madara knew 6-8 users of this technique when he fought Guy. Duy is the only user that is shown in the cannon that can fully use the Hachimon up until its last gate before Guy. I don't know if this is accurate or not hehehe. By the way, I know that I am quite overestimating Duy here but I am not. You will know it in the future how Duy is improving so fast together with Hana and Aki.)

Duy replied "Yes sensei! I will consider your words. I might have lost my reason for learning this technique after both of my parents died but it is not that bad to seek for another reason. Right, sensei?"

"Yes, That is the spirit! Never loose hope and always try no matter how many times you failed! Keep it up Duy!" I said as I slapped his back while showing a grin on my face.

*BANG*

He is planted on the ground due to his exhausted body even if I used minimal strength. He stood up and looked at me in hate but I didn't mind him since I am looking at Aki fighting Kong. Aki uses different Techniques from my Revised Technique with his Sharingan activated.

'He really improves a lot in a fight than training. He really is a Battle Genius, maybe that is the reason why he really likes sparring with Duy all the times. Duy likes sparring to test his theories on his techniques and to improve his instinct while Aki improves on his fighting style together with his insticts as their battle goes on. Duy on the other hand is a monster when it comes to training. He improves through practice and hardwork alone and when it is coupled with his own determination and will, no one can stop him from achieving great.' I thought as I observe the fight between Kong and Aki.

I saw Aki jumped forward to dodge Kong's flying blue energy fist to him. Aki raised his Katana high up with the use of his two arms while he is still in the air. He gathered chakra to his arms as he brought it down together with his own downward momentum. Suddenly, A big brown scaled dragon hand around 5 meters in diameter manifested behind Aki. It brought so much force and created swooshing sounds that brought a strong gale to its wake.

Kong saw this and stayed calm. He smirked as he punched towards Aki's sword. The fist and the sword meet and created a dull sound upon contact. Their attack made a curtain of dust that limits everyone's view on the fight but clashing sounds of swords and gauntlets kept on ringing indicating that dust doesn't hinder their vision.

Kong jumped back to dodge aki's slash on his head and said "You are improving fast Aki! You can challenge any low average Jounins in this village with the use of that cheaty technique!"

Aki rested his katana on his sheath as his confidence is increasing from that compliment. He said with a hint of mocking "Thank you for the compliment Kong! But we still haven't put any scratch or damage on each other in our exchange. I think I am approaching your level of strength Kong!"

Kong is pissed by his words and said "Hahahaha! That Audacity! Accept that you are still weak B*tch! Even if your execution of that Kenjutsu is extraordinary, Remember that you're still weak to wield that technique fully! Thinking that you are already strong is being a stupid idiot! You still need to train more or you will die like a F*cking worm that doesn't have anything to protect itself from a predator like me!"

Aki is not affected of Kong's words and mockery. He is becoming arrogant due to his current winning streak from his spar with Duy and Hana. He is also becoming arrogant due to him fighting ninjas above his rank and still winning effortlessly. I really need to wash it out of his faces with another beating after their spar. He is becoming the old him and can kill him in a second due to this kind of careless attitude.

Still, Aki is a fast learner and starts using his own unique technique that uses my technique as a base. As you can see, Hiten Mitsurugi-Ryu is a technique that uses raw speed and strength in it. The more faster and stronger you are, The more stronger the technique. I already taught him the basics of my attacks and he starts on remodeling it to fit himself with my help. This means that it can only be used by him.

This technique is Invincible in the Rouruni Kenshin universe but not in this world. There are techniques in this world that ignores physical attacks so I revised it. I revised it and remodeled the technique so that it can use chakra or any type of energy to attack the enemy. In this way, I can also damage those people that defies reality, especially obito uchiha.

He is the only Uchiha that I considered as a cheat. Why did I say so? Well You can still physically damage and even kill the The genius Itachi, Sasuke and even the one of the strongest uchiha, Madara Uchiha with great effort. The only exception is Obito, He is the only Uchiha that you can't kill with physical strength even in great effort unless he run our of chakra to use that eye's power of his.

Aki tilted his hand as he showed a confused face. He put a finger on his chin and said "Is that so?"

A vein pop out of Kong's head indicating how much pissed he is. Kong said with a calm smile "Yosh! Let us F*cking increase the level of your beati- I mean Training!" as he Increase his input of chakra to his gauntlets which made the gauntlet produce and enveloped him with steam. Kong murmured "First form, Steam punk!"

*BRRRRRRRRRRRRRRMMMMMMMMMMMMMMM*