Chapter 2: Family and Preparation

I was running while surrounded by darkness. I am not sure when but I realize that there is a big 2 legged hammer running behind me.

It was horrible and terrifying. Or maybe that because I died because of a hammer. Maybe I am thinking of this because that experience itself. Maybe I am just sleeping and when I will wake up I will be in hospital with my head totally bandage up. Well not likely.

When I really open my eyes I saw a beautiful woman talking to me, and holding me in her arms. Let me repeat I very big beautiful woman holding me in her hands.

I was confuse yet after some time I naturally realize that the woman is not the one who is big but rather I am the one who is small.

To further define myself, I was a baby just born in rengoku house hold.

Kyojuro's younger brother, Senjuro Rengoku.

I did not understand what they were talking. Now that I think about it, with the amount of anime and manga I consume daily why I never tried to learn Japanese? I at least could understand the non English version of anime and maybe understand what my new family is talking about here.

Good thing I have time to learn this language and also plan what I am going to do next.

My mother is saying something to me but I can't understand anything except one.

"SENJURO"

That what my mother said and I instinctively reacted. That suppose to be my name if I can trust the so called god. So what exactly I am going to do now that I am here.

I need to plan and train as much as possible. I'll need to learn how to use my chakra and start learning Hino Kami kagura and 8 inner gates technique if I want to defeat Muzan.

But right now I can't do that. Right now I need to grow up healthy and learn how things work here.

And with that my consciousness drifted and I fall asleep.

(TIME SKIP)

[Kyojuro POV]

I don't know why, but I always thought that brother is different. He learn think faster and act more like a adult than a child.

He ask me to train him in swordsmanship recently and I had to refuse him. Even I just started to learn flame breathing and swordsmanship.

Why he wants to learn swordsmanship and breathing style ? I am not sure. Maybe he thinks its cool or just want to get stronger and mothers passing is still heavy on him?

I hope he is fine.

[Senjuro POV]

Its been 5 years since I come to this world and I must say I miss internet and technology.

Under 2 years of me coming here I decided to start my own technological revolution in this world as soon as Muzan is dealed with. God I really feel like a time traveller here. No internet, no fast messaging services or video games. I hate it. But I guess its important so I give more of my time to my training and learning about his world.

My parent are decent people. Even my father who is a jerk in anime is a good man here and loving husband and father.

Or should I say he was a loving father and husband. Because my mother just died and this is the point in the time were my life and the life of my entire family changes massively.

My father already started avoiding me and my brother. My brother on the other hand is fully dedicated to learning swordsmanship and taking care of me.

Which is not exactly that big of a work in the first place mind you. I am smart kid in my families eyes and because of my boosted potential I am learning things faster.

So I am not someone who need a lot of attention anyways.

My relationship with my family is fine. At least as good as it can get.

I loved my mother, always admire big brother and even like my father as well but that about it.

I never really connected with them as I did with my family in my previous life.

Anyways I really don't care about that as much as I care about getting stronger. Although weaker than most of the anime world out there, Demon slayer world is also dangerous and to save myself and my brother , who is going to became a flame hashira.

So as a five year old I started working on my chakra and swordsmanship with the help of my brother.

My very first task is to meditate and open my chakra channels. Which I did after I turn 6 year old.

But my real training started at the age of 7 when I started learning swordsmanship and breathing style.

My brother Refuse to teach me when I ask him at the age of 5. I was totally not pouting and begging him to teach me.

But after thinking about this issue just like a adult I am, I realize that doing any kind of training at this age will damage my body. Specially the high intensity training which I need to do.

So I decided to start my training after I learn how to use chakra so I can protect my body from all those high intensity training.

I long realize that god gave me all the information about chakra and breathing style in my brain.

Its more like I already know every thing I needed to know without knowing how I know that.

Well its not like I really care about that either. What matter for me is that I learn things and faster and I have every thing I wanted.

And that I did. I knew how to use chakra and improve my physical condition with the help of chakra. I also knew how to infuse chakra with my fist to break stone and boulders. I know how to heal with the help of chakra and I also know how to use breathing style and open 8 gates. Pretty much anything thing which does not required a lot of chakra. But that does not mean I can do those things now.

I cant do anything right now because I don't have enough chakra or not have enough control to used said chakra. And even if I learn the control and some how increase my reserve to do those things I till will have issues to perform any techniques because I am not old enough.

And thus I started my real training at the age of 7 were my first goal was to get to my top physical shape as soon as possible, which took me another 2 year.

For 2 years straight I was training on chakra reserve and control with intense physical training.

It was by the 3rd year when I really started working on swordsmanship. I was 10 and although my brother did offer me to teach flame breathing but I refuse.

My reason was simple. Learning many different style of breathing style will not help me and also going to take a lot of time so only focus all my time and effort on learning Hino Kami Kagura (arguably the best breathing style in the anime) and 8 inner gate.

I was also learning how to use healing techniques and some low chakra ninjutsu, like tree climbing which was also a way for me to increase my reserve. I was carefull that no one see me doing things like this because it will be impossible to explain how I do that not to mention anything supernatural in this world can be related to demon so letting people see me using chakra is a no no.

And by another 5 year I learn how to use Hino Kami Kagura and 8 inner gates together which was quite a accompaniment if I say so myself.

Both technique massively tax the body and using them on top of each other I need to control both really well and my body needed to be really strong.

By the time I was 15 I learn all the Hino Kami Kagura form, change them and rename them to perfectly match my fighting style. And was able to open upto 5 gates which was my limit and honestly even lee was not able to open beyond 6 gate at the end of naruto so I am pretty proud of my abilities.

So after ridiculously training and breaking my body and suffering pain every single day since the day I turn 7. I started my journey.

I already completed my studies and honestly learn nothing useful for a person from 21st century.

So without any delay, I started inform my now drunken father and left home to start my demon slaying journey.

A/N: I know the chapter is a little boring and a lot more information but I next part really kick start the story so stay tune.

I will be using my own special forms in hino kami kagura breathing style because I honestly things most of the forms in the breathing style is not usefull and most of them are not really explain well.

Currently there are 6 different forms in my version of breathing style.

1. Solar Flash: which is as same as the first form of hino kami kagura (dance) or thunder breathing: thunder clap and flash.

2. Clear Blue Sky: which is the same as the anime and also my second best breathing form in the whole series beside thunder clap and flash

3. Piercing Erupt: which is a simple sword trust but with fire erupting like a volcano at the end of the sword tip.

4. Fire Wheel: which is same as in the series but use for defending just like rengoku did in the anime.

5. Blazing strike: which is the most simple powerful sword strike from various different direction (it could be from up to down or left to right or vise versa)

6. Dance of the Fire God: which contain all the form in a dance sequence

And lastly

The special Move: Solar Rush - Majestic Comet: the most powerful move which some what resemble might guy or rengoku last move. A very powerful Rush towards to enemy and clean and hard sword strike.