Chapter 3: Hachimon Tonkou (Eight Gates)

"What?!"

Duy was shocked out of his wits.

Hachimon Tonkou, the technique which he had been perfecting for over 15 years.

Yet, the important part was that he had never revealed it to anyone else. The biggest secret of his life that he had never revealed to anyone but himself, not even the Hokage.

"H-how do you know a-about Hachimon Tonkou?!"

Still recovering from shock, Duy stuttered his words as he voiced out his biggest question.

"I have been witnessing you create this technique slowly since a year or two. I have simply not approached you because I didn't need Hachimon Tonkou. Yet I do now. I have a graduation battle and I need Hachimon Tonkou."

Izuryu bluffed his way through his explanation. He hadn't witnessed Duy do anything, yet his second sentence was true, he needed Hachimon Tonkou and needed it within 12 hours."

Duy had already recovered from shock and hearing Izuryu's explanation his simple-minded brain accepted it easily, and looking at Izuryu's eyes the youth within it couldn't be hidden.

As he looked into Duy's eyes, Izuryu shuddered.

"Very well! The youth within your eyes cannot be hidden! I shall teach you my greatest creation, The Hachimon Tonkou!"

'Heck yeah!' Izuryu exclaimed inwardly as he nodded to Duy.

Duy smiled at Izuryu after witnessing his happiness and started introducing the Hachimon Tonkou:

"Hachimon Tonkou is all about opening the 8 gates within the human body that limit the chakra within the human body so that the body isn't hurt when using ninjutsu and chakra. But when one opens a Gate, they are able to use more chakra in their body.

Starting from The Gate of Opening (Kaimon) :

Gate of Healing (Kyūmon)

Gate of Life (Seimon)

Gate of Pain (Shōmon)

Gate of Limit (Tomon)

Gate of View (Keimon)

Gate of Wonder (Kyōmon)

Gate of Death (Shimon)"

Izuryu nodded as he remembered the specific names. He knew the surface information about Hachimon Tonkou but not the specific gates.

"All of these gates will give you increasing amounts of strength and extra chakra to use. But with increasing strength, there will be increasing amounts of stress on your body. As such, Hachimon Tonkou requires a very highly trained physical body."

"I see…"

Izuryu nodded in realization at the specific details of the technique he was about to learn. After the briefing Duy got started into teaching Izuryu the Hachimon Tonkou.

"In order to use the Eight Gates technique, you first need to sense the gates themselves. Start circulating your chakra and instead of gathering or focusing on your abdomen, focus it on the eight points of your body."

Izuryu nodded, got seated in a lotus position and started circulating his chakra around his body, specifically around the eight points, trying to sense the gates themselves one-by-one.

As he started focusing on the eight points, his exceptionally pure chakra started sensing faint blockages at the points of the eight gates themselves.

Yet that was not it. Madara's bloodline was that of Indra, the son the Sage Of Six Paths and the grandson of Kaguya, The Rabbit Goddess and progenitor of chakra.

Indra's bloodline buffed Izuryu's chakra up, making the exceptionally pure chakra even more pure and powerful.

A faint chakra whirlpool started spinning around Izuryu's body as he completely sensed the eight gates.

They were like black orbs, similar to the Truth Seeking Balls, yet they were located in eight points, restraining quite a bit of chakra from flowing into the body.

"I found them Duy-san!"

Izuryu exclaimed as he told Duy about his feat.

Duy's mouth opened into an "O" as he was shocked out of his wits. He had barely sensed them after 7 years of practice yet Izuryu did it in less than 15 minutes. Yet the poor guy attributed it to his body having barely any chakra and Izuryu being a genius.

"Alright, now then. Take you chakra and focus it on the Gate of Opening. After that, keep attacking the gate until you can break it."

"That's it?"

"That's it."

Izuryu was speechless as Duy's statement reverberated in his head. Yet it was exactly what he needed at that time. A quick and simple way to get more power.

Izuryu did exactly as Duy told him to do.

He took his Indra bloodline buffed chakra and repetitively attacked the first gate. However, the gate didn't relent.

Izuryu kept trying to break it but it wouldn't break.

'It won't work like this; I need to break this first limiter but I can't do it this way.'

As he kept thinking of a way to break the first gate, Izuryu had an idea.

It was a simple idea about momentum.

Unlike in the physical world, a shinobi's body doesn't have any obstruction to circulate chakra through it.

As such, what if he kept circulating chakra until it kept speeding up on-and-on-and crash all of that momentum onto that gate.

Theoretically it should work.

So, Izuryu decided to try it.

He circulated his chakra in a way that he was not focusing it on any specific point of his body, instead he kept speeding it up and up and didn't stop.

Outside, a faint blue glow could be seen on Izuryu's skin, yet, the glow slowly started tearing his muscles and tendons, cells were being destroyed in a genetic level as chakra inside Izuryu's body became a constant blue instead of a gaseous floating blue.

Once his body started bleeding on the outside, Izuryu decided that it was enough momentum to break the first gate, The Gate of Opening.

All the momentum the chakra had been accumulating all this time crashed onto the first gate, instantly forming a crack on it.

But the gate didn't break. Yet that was just the first volley of chakra. As large amounts of chakra focused on the already formed crack, it slowly started fracturing apart. The black ball started turning into chakra, opening the limiter.

As soon as the ball cracked open, a large amount of chakra flooded Izuryu's tenketsu, flooding his body. A faint blue covered his body as leaves and dust started moving away from Izuryu's body.

Izuryu had successfully opened the first gate, The Gate Of Opening.

All of a sudden however, something unexpected happened. All the chakra that he had gotten from opening the first gate mixed into his already momentum filled chakra making a wave twice as strong yet twice as dangerous.

His skin started having cracks, through which blood started flowing out. He had to do something about this chakra, and quick.

Izuryu quickly used the chakra to start and break the second gate, which quickly broke under the pressure of the 1st gate and Izuryu's original chakra.

Yet his condition got even worse.

The rabid chakra started tearing through his muscles and skin, turning him into a living man of blood.

Continuing, Izuryu redirected the chakra to the third gate, the Gate Of Life.

Yet the third gate was different. Instead of being a pure black ball, it had specks of white and gray mixed in. Showing that it was different from the first two gates.

As Izuryu's chakra crashed onto the ball, unlike the previous cases, the ball didn't break. No matter how hard the chakra wave tried to break through the ball, it couldn't. As the wave of chakra came to it's end, all that was left was the ball that had slight cracks on it like a spider web and an empty body.

Soon after, Izuryu fell unconscious.

Unbeknownst to him however, his body was going to amazing changes.

As the light of the sun almost reached the peak of the day, Izuryu opened his eyes and groggily woke up.

The first thing he noticed that his vision was much better and he could see far more things. His visual reflex was much better as he could see things in much more details.

'The Gate of Opening and The Gate Of Healing are both located within the brain, so opening them would enhance the brain's actions and all organs related to the brain.'

Yet there was a problem.

His body contained much more chakra and it didn't seem like there was any strain on his body right then.

But the effects were there, it was an obvious effect.

Izuryu had a very far-fetched thought right then.

'Did I just have a permanent Hachimon Tonkou buff?'

While it was far-fetched, it made sense.

All proper users of The Eight Gates never had proper chakra to make use of it.

All three: Might Duy, Might Guy and Rock Lee never had enough chakra in their body during their lives to use any ninjutsu or genjutsu.

As such, even if they did open the gates, the sheer amount of new chakra would flood their body, strengthening it but harming it at the same time, and after they stopped fighting, the gate would seal off again and chakra would again accumulate in it but there wouldn't be enough chakra outside the seal, within the tenketsu. But Izuryu did have enough chakra, quite a lot too. The sheer amount of chakra he used completely destroyed the limiters containing the Eight Gates chakra. As such, instead of getting a flow of chakra through a small 'gate', he directly destroyed the 'chakra warehouse' instead of only opening the gate. all chakra was integrated into his body. Yet the chakra received was not greater than the original chakra of Izuryu, so his chakra overtook the chakra in the 2 gates, making them his own chakra, instead of foreign chakra that would only give him a temporary boost that would harm his body.

'If I go like this there is a very very high chance that I can permanently get power of the Eighth Gate without getting killed.'

Izuryu thought with excitement. Only he knew how powerful Might Guy was. The sheer power he got after opening the eighth gate was enough for him to be acknowledged by Madara as the strongest.

Izuryu stood up running to the village, there was only an hour or so before the assessment and he had to prepare.

***

An hour later, Izuryu walked into the 5th training ground where the 3rd Hokage, Sarutobi Hiruzen was waiting for him in his standard red kimono with a white over-coat and the Hokage hat on his head.

"Are you ready for the assessment child?"

"Mmhm!"

Izruyu nodded towards Hiruzen who nodded as well. He tapped the foot with one leg as an Anbu appeared in the middle of the field, unbeknownst to anyone where he was hiding.

"Prepare the theoretical exam and ask the Elder Council to be ready for Izuryu Tsukisumi's graduation assessment."

The Anbu member nodded and saluted, then disappeared. Hiruzen turned towards Izuryu and beckoned him to follow.

The two left for the theoretical exam hall which was located near the Academy. It was a large room with a glass separating two sides of the room.

One side had 4 seats while the other had one seat and a table.

Izuryu sat on the table while waiting for the paper to arrive.

5 minutes later, on the other half of the room, two elders and a man with a cross scar on his chin, a hand inside his robe and an eyepatch covering his eyes arrived in the room and sat down on the chairs around the room.

Indeed, they were the councilmen: Homura Mitokado, Koharu Utatane and Danzo Shimura.

Once all of them arrived, Izuryu received his paper.

"The assessment for Izuryu Tsukisumi's early graduation shall now begin."