Chapter 1: Beginning

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"So you killed me because you need inspiration for your new fan-fic?" Asked the recently dead soul while looking at the ROB in front of him.

"Yup, that's about it, so you have two options. First, you decline my offer, and I will send your soul to hell, or you accept my offer." Said the ROB with a neutral face.

"Well, I don't have a choice here, so how will the reincarnation work? Do I get wishes or something?" Asked the soul, hopeful it would quickly get overpowered.

"Well, yes, but actually not. You have two choices; first, you get sent to a random world with a few wishes, or you spin the character wheel, but you get to choose the world."

Soul POV:

'So I get to choose my powers is good, but the possibility of the world being some messed up world is high, or I pick the world with the possibility of getting useless powers.' Remembering the world that shall not be named, I quickly chose the safe option and answered the ROB.

"I chose the wheel." After I said that, ROB started murmuring something that I could not hear, but something told me I had made a good choice. After a while, he snapped his fingers, and a wheel appeared with different names. I could see characters like Rimuru Tempest, Shiego Kageyama, Kuro-Sensei, and many others.

"So, kid, let's run down how this will work. I spin the wheel, and the person it lands on will be your future, so make sure to make an interesting story because I need to win the competition. But first, choose your world."

Ignoring the competition comment, I started thinking, 'I need a world where I can survive and become strong even if I get a weak character, oh, and a world with magic because why would I reincarnate in a normal world when I can go to a world with magic.'

After thinking for a while, I decided on Danmachi. Why? Because even if I get some weak character, I can get strong with the Falna, and if we don't think about the One-Eyed Black Dragon, Evilus, and some adventurer thugs, it should be easy to survive. If I get a strong character, it will be even easier.

"I want to go to Danmachi" After I said that, the wheel started spinning by itself and went past many good characters, but it began to slow down after a while.

Minoru Mineta -> Mumen Rider -> Ichiya -> Kon, as I saw it stop, I wanted to break everything, but my shitty luck started to work, and the wheel moved on the last bit and landed on Arthur Leywin.

"Tsk, I was hoping you would become a teddy bear, but it seems you had some luck today. Anyway, I hope you will make an excellent story for me" And with that, I welcomed the darkness with a smile.

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I started to regain my senses. I could feel the cold, and when I tried to move, nothing happened when I opened my eyes. All I could see were trees. Seeing I was alone in the middle of nowhere, I decided to do what every intelligent person would scream until someone found me.

After what seemed like hours, I heard some footsteps, which could mean two things. First, someone will save me, or two, I will become some beast's snack.

"A child?" I saw a familiar older man, but I could not remember where I saw him. He seemed to think about something before picking me up.

"It seems your parents left you here, so what do you say want to come to live with my granddaughter and me?" I didn't know if he was stupid or expected me to reply, but for some reason, I felt I could trust him, so I did my best to answer by giving him a laugh.

"Well, it seems like little Bella will get a brother, but what should I name you?" He looked at me for a while, then at the blanket I was tugged in, and after a while, said, "Arthur, Arthur Leywin, it seems your parents left you with a good name."

He started walking with me, but then something clicked. 'Bell, the main protagonist of this world, granddaughter Bella, old man... That means, oh no...' Before I could think more about it, my eyes started to get heavy, and sleep overtook me.

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Arthur Leywin POV:

It has been two years since I was reincarnated and adopted by Zeus, or as I call him, grandpa. I first learned that Bell doesn't exist in this world, but there is something more dangerous. My cute little sister Bella this little thing is the most adorable little creature. Her first word was "Bworder" when she said that grandpa started sulking in the corner while muttering something about life and already being a lady killer, but I didn't pay attention because Bella's first word was brother.

I swore an oath to myself. If someone mortal or God did something to my cute innocent little sister, I would go full-on Grey on them.

For my appearance, I thought I would look exactly like the original Arthur Leywin, but I didn't have the auburn hair or blue eyes. I looked like Arthur while using Realmheath with white hair and purple eyes, and to be honest. I liked it because Bella and I looked more like real siblings.

During those years, I also started meditating and forming my mana core. Because ROB reincarnated me as Arthur Leywin, I got all his powers but to access them, I need to create my mana core, so that's what I have been doing in my spare time. Still, something that bothers me is the assimilation process, but that's for future me to worry about.

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Over a year has passed, but I'm finally done forming my mana core. Only the last few particles are left, and I'm meditating away from our house, so grampa doesn't see me forming my mana core. Him being a god and all, should probably tell him I'm different, but I could lie my way through, saying I somehow awakened my magic. Of course, it would not be a complete lie, so he should not know it, but...

BOOOM...

After a while, I looked around and saw the ground and a few trees destroyed, but that didn't matter now. So instead, I concentrated on the spot where my core should be, and there it was, a black mana core I had spent almost three years making.

I could make it faster, but I wanted to spend time with grandpa and Bella, so the next thing on my to-do list is to progress my mana core and begin the assimilation process for the beast will I could feel attached to my core. That means I could only progress my mana core level once the assimilating was complete, but I still had eleven years to get stronger.

As I started walking home, I tripped over something and fell headfirst to the ground.

"Urghhh, everything was blown away by the explosion. What did I step on?" As I looked down there, I saw a rock, so I picked it up, but then it hit me. It wasn't a rock but something I didn't expect to see in this world. An egg, more specifically, the egg Arthur got from Sylvia.

This was also the day I changed my oath to protect not only my cute little sister but also my cute little daughter.

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Authors Note:

This is my first time writing fan-fic and a story in general, so I hope you enjoy it and can give me some tips on improving my writing. English isn't my first language, so the grammar could be better, but I hope you can still enjoy the story.

I was thinking about making Arthur a falna-less adventurer due to having a mana core and Realmheart, or should he join a famillia to protect Bella?