A/N:

For Naruto fans: Even though this story count as a crossover, you will be able to read it just fine without knowledge of the TOG universe, you will just learn about the world alongside Tobirama

As for the ToG fans who don't know about Naruto, you could just pretend that our mc is a reincarnated OC.

Hello, this is my first try at writing anything so I would appreciate any advice you may have for me, also English is my second language, so I ask to be forgiven in advance for any grammatical error found.

Chapter 1

When I regained my conscious darkness was all there was, I don't even know where I am or how I got here, what I do know is that I died. It was a good death though, giving my life for the next generation, for my village, but I would be lying to myself if I said I wouldn't have like to accomplished more for the dream of my brother and the sacrifice of my family. To maybe live a little longer and see it to the end, but I did what I could, it's up to them now.

'I wonder, are you still waiting for me? Hashirama, Itama, Kawarama'.

I can't but hope to see them again… if this is the place we go after we die, maybe I could, though I would not delude myself in thinking that I deserve a good fate. In the end, being a ninja is not for the kindhearted. And though this place of nothingness seems to be worse than something out of my nightmares, it may be what I deserve, solitude and darkness.

I can't see nor hear anything, cant even feel the flow of time. What I could feel though, was my despair growing stronger. It was hard for me, as a man who likes to be in control, not knowing anything is hell. In the end I could only force myself to stay calm and find refuge in the one safe place left, my mind.

I don't know how long I spent reliving my memories and experiences, thinking about things I could have done better, wishing I could have been better, at least enough to save them…those dear to me

Family and power, that was the answer I arrive in the end. Family to share the joy of life and power to protect it.

I had the first but lacked the second. Even as one of the strongest shinobi of my time it was not enough to save them, and when they were gone, all I had left of them was their dreams. Even then I couldn't finish what Hashirama started and end up paying the ultimate sacrifice for those dreams, and though I will never regret it, I wish I could have done more. To have seen their dreams of peace to the end, so that maybe if I get to see them again I could do it with my head held high… now I'm alone, without a propose and only endless what ifs to keep my mind occupied.

Suddenly something happen that made me stop my depressive train of thoughts. For the first time since I died I perceived a change in the darkness. It started as a small light, like a lonely star in the night but it soon grow to consume all darkness and end up overwhelming my fragile and still recovering senses, after the blinding light I felt pain and beyond that I thought I heard the crying of a child but a heavy exhaustion took hold of me and my conscious soon faded.

The next few months where a time of growing confusion and lots of sleep. I knew somehow, that I was now a baby, but my still developing brain couldn't hold the vastness of my thinking process nor the amount of memories I had of my previous life. And that is why, I think, that my Tobirama self was suppressed for a time, or at least that is what I have concluded now.

It's been 8 months since I've been born in this place, and I can't help but feel conflicted. I have been giving a new life, a new opportunity to live a life without regrets, and still keeping the memories and experiences of my past I think that maybe, this time, I could do it. but there was something holding me back, a deep sadness of knowing that maybe I won't get to see my family again…

'family and power, wasn't that my conclusion? Nothing changes, I have a family in this life as well so I will strive forward to do my best for them, and when the time comes maybe I will get to see my brothers as a man who not only did his best but also succeeded in protecting those he loves' this thinking I arrived is my pillar of support and my determination to live.

As of now the amount of people I have seen in this new life numbers just 3. My new parents Jayce and Tyra and my caretaker who is also my cousin, named Mira, both my cousin and my father have blue hair and eyes, so I guess they share blood, while my mother has deep red hair and eyes. They all look quite young and beautiful, so I don't think I will have anything to complain about my looks, not that it matters much, at least to me. Apart from that it seems that I also have an older brother whose name I don't know, and I have yet to see.

There is not much more that I could get of the few conversations I got to listened as my understanding of the language is still lacking. They have mentioned something about a tower a lot, and also something about a main and branch family. I'm guessing, having seen the way my family and specially father hold himself, that we are part of some noble family, probably branch members though I can't say for certain.

My main concerned right now is whether I got to keep my chakra or not, for I have no doubt that one of my goals will be to grow in power and for that having chakra will be a huge advantage, sadly I'm too young to know right now, my physical energy its too little so I will have to wait and see, in the case I lack chakra I will need to find another way to grow in strength.

As the months pass all I got to do was, gather information, practice the language, sleep and planned for the future, as of now I was learning how to read with my cousin Mira, who seems to like reading to me though I would prefer if she would answer my every question instead of ignoring me and pinching my cheeks.

"that's it for today little Sylas, you are learning pretty fast, are you that desperate to get rid of your beautiful cousin?" Mira asked me with sad eyes

She likes to tease me a lot, and that's why I always end up pretending that she didn't ask me anything, and today is no different, so while ignoring her question I was quick to ask for a story about the tower, which she has been promising me for days now, and which was my true objective for extending this sessions, I had learned to read months ago.

"mmm I did promise you one and its about time for you to know a little about the tower" said Mira while resting her head in a pillow.

Hearing her response, Tobirama now called Sylas sat straight as an arrow and focus his whole attention in his cousin, this will be his first opportunity to understand more of the world he is now living in, and he wasn't planning on wasting it.

"Pay attention, and hold your questions for later, okay little cousin?"

I nod at this, and seeing my agreement she continue saying "Right, so as you know the place or better said world we are living right now is called 'the tower' in the 'Zahard empire', the tower is divided in 3 parts, the inner tower, the outer tower and the middle area, right now there are 135 confirmed floors in the tower. I will start by explaining how the Zahard empire came to be and this way you will have a better understanding of the different areas and workings of the tower, are you with me so far?" she asked, preoccupied that it may be a little too hard to understand for a two-year-old, even if the boy in question was a baby-demon, at least in her opinion.

Understanding her worries, I was quick to reply "don't worry cousin you are always saying I'm too smart for my age, so believe in me a little more, I have gotten everything so far"

"mmm you are right I'm glad to have such a smart little cousin, I will continue with the story then."

"In the ancient times when there was no civilization inside the tower, Zahard and the ten great warriors came into the tower and started to go up, conquering floor after floor by passing the tests of the different guardians residing in each of them, but after reaching the 134th floor they suddenly stopped, Zahard became king of the tower by making a contract with the guardians, founding that way the 'Zahard empire' and the 10 great warriors that climbed with him became the heads of the 10 great noble families."

"why did they stop at the 134th floor?"

"nobody knows the answer to that, it is said that the one who reach the top of the tower could have anything he wanted, though as of now nobody has made it past the 134th floor. In the present those who are worthy to climb the Tower are chosen from the residential district in the Middle area, which is mostly populated by rankers, regulars and their families , or the Outer Tower where the natives of the Tower live, most of the natives don't even know about the tower and the Zahard empire, having their own kingdoms and living their entire lives in them, though if they are chosen, they can then become regulars and are transported to the second floor in the inner tower which is where the tests to climb the tower happens, all this is done by Headon, the guardian of the tower. When a regular reach the top, which right now is the 134th floor, they become rankers. Rankers are the strongest beings in the tower and families are often ranked according to how many of them they have, aaaanndd I believe that's enough for now, too much information in one go can be bad for you, so any questions?".

Having heard all of this, Sylas was already in deep thought, it was a lot of new information and he needed to look for the best questions to ask this wealth of information that was his cousin Mira.

'I think the first thing I should ask is where our family currently stands in the empire, and after that maybe I could get more information about the rankers and their abilities, to see ways to develop my strength in the future, there are no signs of my body having chakra so far, so It will do me much good to know more about the top warriors of this world'

"in which floor are we living right now then cousin?" this was my first question and though it may seem unimportant it was still something I wanted to know.

"our family lives in the middle area of the 94th floor, so we are pretty high in the tower structure, you could say that we belong to one of the ten great families, though saying that is a bit of a stretch, our branch is really far from the main family"

'I knew we were well off, I even suspect that we were nobles, but hearing we are part of one of the ten it's surprising, I hope our relationship with the main family is a good one'.

"so, I guess as our family name is Koon, that one of the 10 great families is named Koon, and that father is somehow related to the head of the house?" I asked

"yep, your father is one of the many grandchildren Koon Eduan has, believe me when I say that if you are not a direct descendant, then you can forget about having any say in the family, so you could say we are just a branch of a branch, though we still must answer to the family head. You should always remember that strength is everything in the empire Sylas, that's why our whole culture is based on going up the tower"

I wasn't too happy with what I just heard, though it could be worse, in the end family it's not the name but the people close to your heart, so it was not a necessity to get along with all of them.

'I wonder if father and mother are rankers, maybe even brother? No, he must be still climbing the tower, that would explain why I have yet to see him'

"I still don't get why people would become regulars and risk their life going up the tower, I understand that being a ranker gives one benefits, but couldn't you grow in strength without having to climb it?" this was one of the biggest concerns I had about this tower, I needed strength but I didn't want to leave my family for years while climbing and risking death.

If I could train in here and regain or maybe even surpass my previous strength on my own. then I should have no reason to climb.

"you could, but there would be a limit in what you could gain in the middle area of the tower, tell me Sylas, do you know what shinsoo is?"

"no, though I have heard the word before, I'm not sure what it means"

"Shinsoo is everywhere inside the tower, its amount varies depending which floor you are on, increasing in density with each floor you go up, it could be called the base of all the energies and it's what allows for breathing an provides moisture to all living things, but what you should know is that this energy has no limits, with it you can control the elements, gain eternal youth or even immortality, and it's the weapon of choice for all the rankers and regulars going up, that's why everyone you see looks young"

"but then if everyone looks young, how do you distinguish between ages"

" the truth is rankers could live for thousands of years, and regulars for hundreds, the more shinsoo you control and the denser the shinsoo in the environment is, the stronger your body becomes, so knowing how powerful someone is can be a good way to know if they are old, but its not a sure method and to answer your previous question, people climb the tower because shinsoo's density is higher in the inner tower, even though the upper floors middle area still has a higher density than the lower floors inner tower, once you are in the upper floors, the inner tower shinsoo will always be denser, so you see, while climbing the tower can be dangerous and it takes a long time, it allows people to transcend from humans to the existence known as a ranker"

´hum, after hearing all of this I guess my goal is now clear, I must become a ranker in the future, though before that, I should familiarize myself with this shinsoo, I should be able to adapt some of my old techniques to this new energy or at least I hope so´

"is cousin a ranker?" 'If she is, maybe I could begin my training right away, I'm pretty sure I could manip... cough... convince Mira of teaching me about shinsoo'.

"What! Do you think I look old? I would have you know that I'm 16 this year! Going up the tower and becoming a ranker can take you up to several centuries!"

´wh.a…what, ce..centuries is she kidding´

"cousin there is no way it would take that long, there are only so many floors to climb and you only have to pass a single test to go up in each"

"humph don't doubt me you little brat, the tests are not easy, and who said that there would only be one test per floor? you should know that there are even some tests that can only be done a single day of the year, what if you missed the date? And even if you hurry and pass everything on your first try, which I will tell you right now it's impossible! it would take you at least 50 years to climb"

'this changes the few plans I just made, I wonder what I should do now... I can't nor want to leave for that long, I will have to think about this´

"Cousin Mira, even if you are not a ranker you must be strong right? Could you teach me a little about shinsoo?"

"humph your sweet words won't affect me, I swear you are like a baby demon, trying to manipulate your loving cousin, though in this case you speak the truth, as someone who will become a ranker in the future, I have obviously learned about shinsoo"

Sweat start to gather in my brows ´this cousin of mine is really perceptive, I'm pretty sure she knows I want to learn how to manipulate shinsoo from her, there is only one choice now´

"I just wanted to learn from you cousin Mira, you are a really good teacher and I like when I spend my time with you" sincerity plus flattery, an overpower weapon when everything else fails

.

Hearing this, Mira´s temper cool down.

"I could teach you a little, though not without your parents' permission, you are still too young, even if you are a baby demon"

´humph this little girl is clearly dangerous, at least she only half jokes when she calls me baby demon, I think´

"then let's go ask them right now" I needed to start shinsoo training as soon as possible, my physical training will have to wait till my body develops a little more, and I didn't want to waste more time, so the only option was to train this shinsoo energy.

"they aren't home yet little guy, we will ask them at dinner, right now it's time for a nap… all those questions tired me" after saying that she grabs my arms a proceed to throw herself and me into the bed

While resting in her arms a warm feeling starts to surface from my chest, 'this girl…. I guess it's not all bad being a child'.

While thinking that, I relaxed in her arms and soon sleep took over.

First chapter done, please review. i'm actually doing this as practice, so reviews are crucial, even if they are all negative ones.

Thanks for reading and hope you enjoy this story.