Transmigration

I opened my eyes, with a pain in my head. The first thing that I saw was a old man during some woods in front of me.

I blinked my eyes and few times, thinking I was having a dream. But it seems like I wasn't in any.

I looked around, it was a old and shabby house. But how did I end up here?

I was inside my room just now, reading some mangas. The last things that I remember is hearing a loud boom and feeling very hot.....?

Wait, did I forget to turn my stove off?

Was I caught in a fire explosion?

[Correct, host.]

Suddenly, I heard a robotic sound out of nowhere. I tried to look around, but couldn't find the source of the voice.

[Don't look around, host. I am inside your head.]

Inside my head? Am I really dead or am I hallucinating? How can I even hear sounds inside my head?

[This is real, host. I am the system that has been assigned to you. You have been transmigrated to another world.]

Oh... things like that actually exists? I never thought I will be able to witness that.

So is this a world of cultivation or magic?

Am I getting some cool power ups from the beginning?

[Nothing like that, host. You are in a alternate reality, host.]

[This is the land of demons.]

Land of demons? Then I surely will be needing some powers to stay alive atleast.

What are my powers system? If I have any. Or am I gonna have to do some tasks to get those powers?

[You have no powers host. You are just a normal human in a world of demons.]

What?!!

You must be kidding right? How am I going to survive?

[You can survive, if you stay away from demons or by becoming a demon slayer.]

Demon slayer...?

I raised my eyebrows, I strange sensation on my stomach.

[Correct, host. You can become a demon slayer.]

Hey, system. Am I in some sort of story book?

[No, host. This is a real world. But the things here is similar to what you have read in a story from your home planet.]

[This is the world of demon slayer.]

The world of demon slayer...?

Now that I look carefully, this old man... isn't he the one that says Tanjiro to stop on the night Muzan killed his family?

[Correct, host.]

So I transmigrated here and as Tanjiro?

[Affirmative.]

Fuck...

So Muzan right now is going to slaughter all his family?

[Yes, host. Currently he is on his way there.]

So it is really that day. If that is so, then I will have to go there fast... but what will I do?

Muzan is the demon king, the strongest demon. Currently, I am nowhere near enough to fight him.

Hey system, are you going to provide me with anything or do I have to do everything myself?

[I am only here to assist you, host. I cannot provide you with powers without anything.]

[You will receive quests from me and as you continue to fulfill them, your strength will continue to rise.]

And what kind of quests are they?

[Quests that are related to you, mostly based on your desires.]

My desires?

[Correct, host. Even me taking you here is based on your desire.]

Well, i won't deny that I always wanted to be in a world of mangas than in real life.

But I do understand that nothing in this world is free, so what is the motive behind you system?

[This world isn't just the world of demon slayer, a mere story. This is a real world. The motive behind taking you to this world is to change the ending of this story, to end this story without losing many lives.]

So you want me to change the ending huh?

I can do that.

I still have a lot of doubts in my head, but I will let it slide for now.

I am excited to finally be in a world of manga and especially inside demon slayer.

I know there are a lot of dangers here, but there are a lot of waifus too.

Tanjiro was good, more likely a saint but I am not that. I will take them all for me, as the main character, shouldn't I have a harem?

But first let's go and see Muzan.

I have always wondered about this possibility when watching and reading demon slayer, but what if Tanjiro had become a demon on this day?

I will try to see qhat the future holds for me, but I am not going to live this life without enjoying this to fullest.

Unknowingly, a wicked smile formed on my face. Shinobu, Mitsuri, even Nezuko and many more... I will take them all for myself.

System, are you going to give me my first quest or not?

[Quest: Confront the demon king, Muzan and survive.]

[Your rewards will be given after the completion of the mission.]