Setting Sun is set in a alternate universe or au for short! Also I am not a good writer or speller so if you notice any spelling mistakes please let me know!
This AU has 1 more 'race' besides demon and human, it's called Celestial very few are this, and very few know of it's exitance but they are like demons with their abilities, controlling fire, bending water, healing unusually fast, and extra appendages, just to name a few but in the story you need to know that you are one, you've been cursed to never die unless your killed the same way demons are, typically celestials are killed like humans.
Also no images are mine unless stated in the authors note at the end of each part and if they aren't mine I say where I found the images! If you want to see anything happen in the story don't feel afraid to ask me, I'm always welcome to suggestions and feedback!
Thank you for reading this. And I will start the story when your 9. Onto the first part.
-Prologue-Noones POV-
"Where are you going little girl?" The demon said cackling. You didn't respond you kept running as to make sure the demon didn't get you.
Your eyes pricing the night looking for someone to save you but all you could see was only the forest still no life in sight.
You listened for a noise of someone but all you could hear was your heart beating, the short and uneven breaths you were taking, and the hoared noise of the demons cackle.
All you could feel was your wounded shoulder sharp pains, your feet pounding against the ground, and your bruised hands sting.
The demon speaks to you "why are you making this more difficult then it needs to be?" Followed by a metallic slicing noise, before hearing "are you hurt?" In a gentle but firm voice. Turning to look at who spoke your legs give out and you fall to the ground.
But you can see who spoke a man with reddish eyes, long deep but muted red hair pulled back into a ponytail, a cold expression, and a red katana. Shaken by his appearance you respond in a trembling voice "N-no sir…" he looks at you and sighs "you clearly have a injured shoulder. Do you know where your parents are?" On the same voice you respond with "No sir." Clearly lying to the man.
After you respond he walks towards you well putting his katana in its saya "did that demon kill them?" "Yes sir." He looks at you and ask "do you want to avenge them well saving others?" You nod as a response to his question feeling like your vocal cords might snap if you speak. He then picks you up and carries you to a place you would only see in fantasy. A house that looks like a palace, a wisteria tree covering two training dummies, and a lush yard lined with flowers of all colors.
He sets you down inside next to a dinning area complete with a kotatsu, cushions, and a cupboard filled with novelties. The area he walked over to looks like a food preparation station with immediate access to the outside. On his way over he passed an area that looked like your living room cushions in a 'u' shape with a low table in the center of them. If you were to walk a little further from the living room you'd see a hallway but you couldn't see inside of the hallway from where you were sitting.
He seemed to prep something. But you could only guess what was being prepared. Once it was finished he brought it over and encouraged you to eat it "it will help heal your wounds." You listen to him and eat it but with caution.
Once you finished he brought you to a room with a futon layed out along with some clothes. "You should sleep if you need anything call for me." You respond "what should I call you though?" He looked puzzled for a bit then he responded "you can call me Yoriichi-sensai." You say "okay Yoriichi-sensai, I'm (L/N)(Y/N)." With that he leaves the room, wishing you a goodnight.
Once you heal up he teaches his breathing technique and about the demon slayers. He also adopts you as his daughter. He trains you for about a year and a half.
-Time skip-(Y/N)'s POV-
Well practicing Sensai walks into the estate "Welcome back!" I greet him with a cheerful smile. "Hello (Y/N), I have some news for you." Looking at him with shock "What do you need to to tell me Sensai?" Still looking at him confused "If you want I'm permitting you to go to final selection." A feeling of joy overwhelms me "Really?!" I exclaim knowing he was probably joking but still excited nonetheless, "Yes i will have one last meal with you before you leave to final selection and you will be taking my blade to fight with." I was so excited I could barely eat, or sleep.
The next morning I said my goodbyes to Yoriichi-sensai and left to final selection.
-Time skip-(Y/N)'s POV-
I return from final selection 8 days later it was difficult to succeed in and I somehow managed to kill 3 demons well there I did save a boy I meet there. But I never saw him when we picked out the metal used to make our nichiring sword. When I returned I saw Sensai was not there so I just went to bed as it was quite dark.
In the morning I am awoken by the smell of rice so I get up to check what the smell is coming from to see Sensai cooking. "Good morning!" I say with a tired smile, Yoriichi-sensai turns to look and sees it's me "welcome back, when did you arrive?" "I returned last night but I couldn't see you anywhere so I went to bed." He smiles and says "I'm just happy to see you made it back alive."
-Time skip-(Y/N)'s POV-
Two weeks later my nichiring sword arrived and it changes to be a black blade Yoriichi-sensai and the man who made my blade seemed surprised, and I know that not a lot is known about swordsman with black blades because they either die or disappear.
A while later the man leaves and I get my first assignment and Yoriichi-sensai states "Your real test begins today." Confused by what he means I ask him to elaborate, "You just got your first mission today, so you will start fighting alongside the demon slayer corps as one of us." Also saying "Stay safe and make sure I can see you become a Hashira one day." I thank him for training me and promise to become a hashira so I can help other people the way he helped me.
"Good bye (Y/N)." "Good bye Sensai." I say as I depart.
-The Next Few years-
You spend the next five years you climb the ranks and you are close to becoming a Hashira but not quite you are salected as yoriichi's tsuguko years after he retires though your still not a Hashira.
~~~~~~~~~~~~~~~Sorry to leave it there! But I hope you enjoyed the prologue! I'm sorry for so many time skips I was getting tired of where I was writing or I needed to move on!TmT~~~~~~~~~~~~~~~
Some words and there meaning:
Saya - another name for a scabbard or sheath.
Sensai - Japanese word for teacher (I'm not sure if it's spelled correctly)
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Setting Sun • KNY/Demon Slayer Fanfiction • Rengoku x F!Reader
FanfictionA young girl is running from a demon she can't see or hear anyone else but her and the cakleing demon, but she is saved by a man that notices she is injured, he decides to take care of her and train her to fight demons. Years later well on a mission...
