Our Teru teru bozu (KNY X OC)

It's nice to meet you

Dark.

Cold.

Lonely.

"Looks like the rain will come." I look up to see the black cloud began to gather around the sky then look at the two graves in front of me.

My parent's graves.

Been place at the prettiest place on the mountain where you can see a beautiful view with a full wisteria flower. Even though Kaa-san was a demon she thought the wisteria flower was the most beautiful one that she ever has seen. Her last wish is to buried with her favorite flower but the demon body is easy 'dust'.

"Tou-san, Kaa-san, I hope you doing fine in the dead world. I still can not understand heaven and hell but I wish Kamisama will let you two meet each other. Winter comes again this year but does not worry about me. Kagaya Nii-san and Ojichān are doing fine too. I need to go...see you soon Tou-san Kaa-san."

I grab my umbrella, look at the grave for the last time before walk away leaving the place.

While I walk down from the mountain I can feel something or someone is watching me. I stop my movement and close my eyes. Dark surrounded my vision and I can see one red flame. It red like blood. Not just that, it big a really big one. There is only a solution for this.

Red flames are only for demons and it wants to eat me.

"That's weird? He smells like demons but also a human. Who cares I will eat him before any demons come." I can hear that demon says clearly.

I open my eyes and it started to rain. I can hear that demon runs fast while ignoring the rain.

...A not normal rain...

"Zen Shūchū, Ame no kyokū, Ni no kata: Hanmarein. (Full Concentration, Breath of Rain, Second Style: Hammer Rain)"

I lift my umbrella up, while I take a deep breath the rain gathered around my umbrella and then I swing fast. The demon shocked by the attack and let it guard down. I took the chance and swing hard to its head. I hit hard makes the demon's head shattered and the body starts to turn dust.

"Forgive me, I hope you will be born to a world that is no demons exist." I do not know why I said that but at least it gives some peace to the demon and me.

I open my umbrella and continue walking to my destination.

(TIME SKIP)

"Yatta!" I yelled happily after I arrived at my destiny.

Ojichān house.

His house is hard to find because of the mist but that's nothing problem for the awesome Mafumafu!

When I walk to the house I feel something wrong. I hurried close my eyes and see two flames inside the house.

One is Ojichān aura who has light white and blue flames while another one has red flames but soft?

I pretty sure it was a demon but why this one is different than other demons? It warm, unharmed and determine.

"There's is only one way to know." I run to the Ojichān house.

I open the door and going inside to see Ojichān sit in front of the fire. He shocked to see me out of nowhere open the door hard but you can not see it because he wears a mask.

"Mafumafu? Okari-" I cut his word.

"Tadaima Ojichān! Where is the demon?!" I close my mouth with my hands when I realize I'm yelling.

I immediately bow for forgiveness and run-walk around the house to find the demon until I stop in front of the door room. I try to open the door when Ojichān holds my arm to stop my movement.

"Whatever you think please have mercy to her," Ojichān begging me.

"Ojichān, I just want to confirm if what I think is true. You do not have to worry." I smile to him which he understands and releases my arm.

I calm down myself and open the door to see a girl who has bamboo in her mouth sleep peacefully on the futon. At first glance, I can see how cutest she is. I sit near her and scan all her body with my eyes. Not in a perverted way just want to confirm if she is dangerous while Ojichān sits opposite me.

"This girl name Nezuko and I can say that she will not attack human," Ojichān says.

"And why you so sure Ojichān?"

Ojichān explains to me how he met Nezuko and his older brother, how he teaches the older of water breathing, and now in a final selection to become demon slayer and many more. No wonder I did not feel the danger.

Nezuko-chan is just like me. A demon who not in control and did not eat humans.

"How Tomioka now. Is he healthy and eat properly?" Ojichān asks to me. I understand how much worry he is. Tomioka-san is always a quiet, gloomy, and lonely person. He became like that after Sabito's death when fighting against a demon in a final selection. Remembering it just making me sad.

"He's doing fine. Well, it all thanks to Mafumafu who always take care of him." I say proudly which Ojichān chuckle behind his mask.

While we chatting, Nezuko-chan suddenly opens her eyes and wake up. Woah even she has pretty eyes too.

Nezuko-chan doesn't say anything and walks away ignore our existence. When she in front of the door, she just kicked and walk outside. That reaction shocked both of us.

Then, I hear a loud noise from the outside. I and Ojichān walk out to see Nezuko-chan is hugging a young male who crying happily.

'It must her brother.' I stare silently while Ojichān walks to the siblings and hug them tightly.

They break the hug and I can see a young male look at me confusingly, wondering who am I.

"It's nice to meet you a future Demon Slayer Corps." I smile at him which his face becomes red.

Now, this is gonna be exciting.