Naruto: Blood Demoness Karin Uzumaki

Later that night, Karin sat cross-legged on the cold floor, her body trembling with exhaustion but her mind strong.

She began experimenting with her chakra, guiding it along different paths within her meridians. She started with slow, deliberate movements, focusing on precision over speed. The easier flow from the previous night had given her confidence, and she built on that progress.

She had found out another Interesting Detail that was different from her Previous Life.

Her Meridian System had many different Nodes in each of her pressure Points, she quickly realized that she could release her Chakra from Each of those Points after some Struggle to unlock some Nodes.

She also figured out that her Chakra flow can be more easily be increased or decreased by manipulating these Nodes.

Quickly another Thought came to her, perhaps a Martial Art similar to the Death-point Touch could be used against People with Chakra.

The Death-point Touch was a Martial Art where one hit pressure Points with relatively light jabs using their fingers. Such Strikes would reduce their muscular strength and disable their Qi temporarily. This would be particularly devastating for people who rely solely on their Qi to Fight. However, this was weak if not useless against any proper Body Cultivator as their Skin would easily deflect such crippling blows.

(AUTHER NOTE: I Know I'm just copying the Gentle Fist Here. Also releasing chakra from each tenketsu is not a Hyuga Exclusive, Other Ninja can also do it, for example Sasuke with Chidori Stream or the 3rd and 4th Raikage with their Lightning Release Chakra Mode.)

She also noticed something else. The more she worked with her chakra, the more her body seemed to adjust to it.

Her muscles, though weak, felt slightly less sluggish. Her senses seemed sharper, her thoughts clearer. It was as if her entire being was growing with further control of her Chakra.

Just like this, Several More Days Passed. Waking up being bitten and training after it was over, it was exhausting but she had no other option but to endure.

Each day growing a tiny bit Stronger. But she didn't stop there. She began testing the limits of her Body, she experimented with small bursts of Chakra all through her internal System to see how it interacted with her body.

For example, she focused on her hands, trying to channel Chakra to her fingertips. At first, the results were negligible, a faint warmth, a tingling sensation. But with time and practice, she managed to produce a small, flickering glow of chakra around her palm.

Her captors, oblivious to her growing strength, continued to treat her as nothing more than a tool. They barked orders, drained her chakra, and sneered at her apparent helplessness.

Every insult, every bite, every moment of humiliation would be repaid a thousandfold in Blood.

This Monotonous cycle of torture continued on for a few Weeks, thus Karin got stronger and and more experienced with Chakra everyday.

She grew fascinated with Chakra and for example also learned that the people of this World called what she first thought to simply be her Meridians something entirely different after all.

They call it the Chakra Pathway system. It does indeed make sense but that's way to literal that's like calling a door a Rotating Wood Sheet, whilst technically not wrong it's rather weird.

It was remarkably similar to the Meridians she was familiar with but had a slightly changed Structure.

Also the Chakra Nodes she found before are called Tenketsu but what she found interesting is that most "Ninja" or simply glorified Mercenaries can at most use the Tenketsu in their Hands and Feet to release Chakra.

Why ? Karin didn't know, after all opening she had already opened around half of all the Tenketsu in her Body rather easily since you just have to feel or see the note you are trying to open and then push chakra trough it in a specific way repeatedly.

The only reason she hadn't opened more is due to the slight difference in Structure between a Meridians and the Chakra Pathway System.

Her Most Interesting find were what Ninja's called Jutsu, something she has not quite understood, but Ninja can release Elemental Attacks from their Body using Chakra. This was something to learn more about later.

Karin also gained a basic understanding of how this World was Structured.

Most likely this world seemed to be one sligthly split apart Supercontinent with the Land of Fire as the most Fruitful and Agricultural Land. The Land of Fire is where Konohagakure one of the 5 Great Ninja Villages was built. The other 4 Great Villages exists in other parts of this Supercontinent.

Iwakagure is in the Land of Earth. A Barren Land with tons of Rocky Terrain. Next up would be Kirigakure, an Isolated Union of Islands that mostly stays to themselves and are isolationists. The Land of Lightning an almost cut of Mountainous Region connected to the Mainland trough a single small country. Due being built on literal Mountains their Hidden Village Kumokagure is nigh impossible to conquer.

The last Great Village is Sunagakure, a Village Build around a small oasis in the middle of a desert, They struggle with resources and suffer from Famine to the point it is Widespread Information that in Order to Survive their Kage or Leader has to use his Ability to scrape up gold from the ground to sustain it.

Honestly Suna was the One Karin understood least… which Idiot had the bright Idea to build a City in a desert without any fertile land around.

Her Home is a small Country known as the Land of Grass, a Region between the Land of Earth and the Land of Fire that acts like a Buffer between the 2 Great Villages. Thus it frequently suffers under the attacks of each of them. This is the reason they allied themselves with the more Generous Konohakagure to more Easily Survive.

The Leaders of this World seem to be the Kage and Daimyo. Kage work Similar to a Sect Master while the Daimyo's function like the Imperial Family and the Emperor.