"If I stopped you from following my path-would you still be here?"
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KNY HASHIRAS x SIBLING READER (ANGST)
TW: 13+ (?), Mentions of reader dying, blood, mature language! If any thing is triggering please skip this story!
What if you died? (aka as a sibling of a hashira?)
(PLEASE NOTE: I couldn't write for Tengen nor Gyomei as I can't think of good scenerios for them-not that these are good either- I just can;t think of them in an sibling/angst scene :'>)
Reader is G/N! I wrote (sister/brother) but you could reader it just as "sibling" too
Song inspiration: Happier by marshmallow & Bastille
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GIyuu- (Younger/twin sibling reader)
He never gave full attention to any messages sent by his crow- no matter if it was a lower slayer dying, or about how the number of slayers dropped. Of course his heart wavered a bit from the poor souls but it didn't matter to him unless It was a mission or something important from master kagaya (Or if it was a silly message from you, he would listen to the crow)
Today the weather was humid- the sun came up and It wasn’t raining but something felt off to the water pillar.
Giyuu didn’t give much attention to it though, he was just ourside of his estate staring deep into the sky, waiting for you to come back from your mission, skipping his training for the day.
The last thing he expected was his crow cawing frantically cawing outside his estate
Stating that you are dead.
Time seemed to stop right there for the pillar.
His breathe hitched and for the first time in years his breathing form was off.
Guilt hit his heart as if 100 knives stabbed him.
Why would you leave him after all the people he lost?
Why did fate tear you away from him?
If Giyuu never let you follow his lead would you be next to him right now?
Giyuu looked down, hot tears streaming down his eyes.
When Master kagaya held a meeting for the Hashiras the area was dim. Obanai and Sanemi didn’t shoot Giyuu glares or weird comments, instead their looks were somber, as they knew he wasn’t dealing it well- and that was the sad truth.
Giyuu was not eating any food Mitsuri or Rengoku tried to give him, he barely came out of his estate after your death, and broke down constantly when he was alone.
After the meeting, he finally came to your grave with your sword hilt and a piece of your Haori that the Kakushi could retrieve from the fight scene.
He put them next to your resting place carefully, as if it was a delicate piece of string that might break any moment.
He looked up at the sky trying to hold back tears
“Y/n,,forgive me for not being there dear (brother/sister)…I will join you and the others soon after I finish my job.”
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Shinobu- (Older sibling reader)
She always told you to be careful, and you did (for the most part)
The worst wound you ever got was a huge slash across your leg, but you were strong and you survived even the fight against Daki and Gyutaro, with Tanjiro and the others.
Shinobu was hesitate when you had a new mission. For some reason this time it felt off, an upper moon? Against you? I mean sure you could protect yourself, you proven that more than a million times by now but there was this weird feeling in her heart.
So with a quick promise to her and some goodbyes with the other butterfly sisters you went your way to the next mission.
Shinobu got back to her usual work, like taking care of the wounded , training Kanao and the others (which is your job but she fills in whenever your not available) and lastly testing out some poison.
She thought you would come back like usual, with a cheeky smile that she could never get mad at.
But time passed, from a few hours, to overnight.
Shinobu was restless, demanding information from the other demon slayers and when she found out you died she was enraged.
Her dear older (Brother/sister) was gone. Another one of her siblings.
What if she stopped you from going on this mission?
If she was there quicker maybe she could’ve saved you from this terrible fate.
Kanao was quiet but she was broken inside. and the other butterfly sisters couldn’t help but break down every time someone mentioned about you.
Meanwhile Shinobu was never sleeping-every night she was awake, researching about the demons and trying to create more stronger doses.
Kanao had to persuade her to go to bed, to take care of herself.
Trying to smile more was hard for Shinobu, she lost the only string that had kept her together after Kanae’s death.
She visited Kanae’s and your grave almost every night mumbling soft promises in the dark.
“Y/n, Kanae…I will turn the demon that hurt you into ashes. Please wait for me”
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Sanemi- (middle child reader between Sanemi and Genya)
Sanemi always cursed at you for being so weak, for even trying out to be a demon slayer just like Genya
Truth to be told, he just didn’t want you to get tangled up with his mess.
All that screaming and shouting at you was to make you stop becoming a Hashira but you decided to go against his wishes.
You wanted to protect people, be the highest rank and actually head straight forward to danger to protect people- even at the cost of your life.
And that’s what you did one night.
You saved two kids’ lives by protecting them with your body, after your sword broke from the force of the upper rank.
When Sanemi’s crow informed him about your death he was blinded with rage.
He wanted to wipe the demon that killed you off of the face of earth.
Not only was he mad at that, he was mad at the other “weaklings” (aka the lower rank demon slayers) for not protecting you. And lastly he was mad at himself for making such a mistake.
He should’ve stopped you and Genya from becoming in this position way too long ago. And yet he didn’t because of both of your bright passions.
Genya was shocked. His older (brother/sister) gone? The one that stood up for him?
Genya tried to talk to Sanemi but he bluntly shut him off.
Sanemi’s condition got worse and his drinking habits came back. Genya tried to talk Sanemi out of it but with no avail. The only respond he got back was Sanemi yelling at him. Every night this was the repeating habit the demon slayer corps heard.
Sonner or later Sanemi and Genya went to your grave while Sanemi finally broke down, his heart screaming in anger
“Y/n I’ll make sure that demon-and all the others will not get away without being punished. I’ll wipe that ass face off earth. For now you can rest in peace.”
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Mitsuri - (Older sibling)
Everyday you two talked, (I kinda imagine Yapper x listener between you two everyday)
You always helped Mitsuri out with sword training and looked after her, sometimes she wished she could do the same
Whenever Mitsuri saw you leave for a mission she never had this weird feeling in her chest like today.
She brushed it off although she couldn’t focus on anything, even forgetting her own meals.
But sooner or later her worst feeling came true when our crow announced your death.
You died a painful death by a upper moon because of a surprise attack no-one would’ve guessed.
She broke down on the floor, bawling her eyes out.
If it wasn’t for Obanai or Rengoku to push a bowl of food to her and tell her to eat she would’ve skipped many meals for days.
She didn’t do it purposely- your death took such a toll on her she kept forgetting and didn’t have the energy to eat.
Everyday she visited your grave and it wasn’t any better there, she kept breaking down stuttering words out but in the end those sentences became heartbreaking sobs.
After months of the Hashiras looking after her, Master Kagaya finally could send her to missions, she finally got back to “normal self"
Except her smiles were more forced most times, even with the bubbly personality- having you taken away, she became more brutal to demons.
When your family found out ,your other siblings broke down as well as your parents. Unable to accept your passing.
Soon Mitsuri took her meal and sat next to your grave. It became a habit to eat next to your grave as if you were still there.
Mitsuri would shed a few tears even after many months, but she could manage to get words out.
Soon she could mutter a few words although she still stumbled with her words because of her sobs and occasional break downs.
“Y/n…(Oneesan/Oniisan), Im sorry I couldn’t protect you like you always did….I’ll end the demon that hurt you I promise!”
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Obanai- (Younger sibling)
NOTE: (Ik he was the only boy in his family after years but like if your reading from male perspective pretend you were like with the same cage yk? :3)
As much as he hated people and conversations, You were the only one (after Mitsuri and master) that he would never mind talking to.
You were the one who never hurt him, let alone you always gave him soft smiles (Whether you were emotionless like him or a happy bubble)
Besides, you’ve been helping Obanai survive through his life. Even going through tortures with him.
Obanai was always was unsure of how to feel when you went on a mission not accompanied by anyone.
He always had a bad feeling and this time it was worse.
He wanted to go after you and tell you he have this nagging feeling inside him but he thought nothing of it and turned away, stroking Kamburamaru’s head as comfort.
The next day after he finished his training he was silently waiting for you.
He was about to ask Mitsuri or Rengoku if they saw you coming back but before he could even stand up a crow, your crow flew infront of his face flapping its wings wildly in panic.
For the next few seconds Obanai couldn’t comprehend what the crow said.
You dead? From the mission?
Why didn’t he trust his instincts and tell you?
Why did he not go with you?
For a second he wished to change his actions. If he went maybe, or sent backup- Maybe you would’ve been telling him you were fine, that you just had a few wounds from the mission.
Obanai never ate much, but after you death he just completely shut everyone away.
Mitsuri tried to get him to eat, even Sanemi joined in with her trying to force him to eat everyday.
“Iguro! Come on the last thing you can do for your (brother/sister) is to take care of yourself! They’re gone can’t you tell?!…Now come on the last thing they would want is to see you in great pain.”
Slowly he started to accept the food Sanemi gave him and joined Mitsuri again for meals, and day by day he began to go to your grave-getting the best decorations for you.
When he actually went to your resting place, he couldn’t help but have tears slowly going down his face as he put his head down. Kamburamaru’s comforts didn’t really do much but bring some sense of peace to him.
“Y/n. You did great dear (brother/sister). I will hunt the demon who caused you pain down to pieces. Just..wait for me”
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Muichiro- (twin/younger by 1 year at most)
(This scene is when muichiro got his memories back!)
Muichiro always tried to make up his time with you since he forgotten you for 2-3 years.
He regretted not being there for you 24/7 when you were there for him.
Between all of the hashira’s you two were the closest. Always seen together, training together, eating together, you name it. Your sibling bond was unmatched.
He almost always accompanied you on missions (no take-backs. He would not care about your complaints)
But today it was different. He had a mission the opposite of yours and he couldn’t really say no.
Although he was a sneaky lil pillar, his loyalty when it came to master was insane.
You promised him to come back and meet him at Master Kagaya’s mansion the next morning.
But when he arrived back at the demon slayer corps he was greeted by your crow, repeating your death from an upper moon again and again.
Muichiro stood frozen in place.
Guilt and sorrow punched him in the gut.
Why wasn’t he there for you when you needed it?
He stood there for minutes until his feet could finally drag him towards Shinobu’s estate for answers. His mind full of questions.
How did you die? Were you in pain? Could your fate have been different if he tried?
He thought nothing could shaken him up after he experienced Yuichiro’s death.
But when he saw the grave with your name on in several days later his breathing stopped.
Thats when memories flooded him, finally making the mist pillar break down in silent tears. As he clenched his fists and mumbled silently through his tears.
“Y/n…I will make that bastard demon pay for your suffering..”
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Rengoku- (older sibling)
Rengoku and you were complete opposites. You were known for your cruel training and words while Rengoku was known for his bright attitude.
But one thing in common was that both were respected highly for their skills.
Rengoku always tried to get you to decline dangerous missions but you didn’t really care who you were against. Your pride in protecting humans were unmatched to any other passion.
Even with this tight knot in his chest Rengoku shook it off and he shot you a small smile before you took off on your mission.
The next day Rengoku was with Senjiro outside of their estate when he heard his crow frantically flying towards him saying a message that you had passed after a fight against an upper moon.
Senjiro couldn’t stop from his tears threatening to spill and Rengoku just stood there eyes wide with disbelief.
When your father heard he flew into mad rage. Screaming at Senjiro and Rengoku continuously if they dared to try to stop his father from drinking again. The retired flame pillar and your brother's were in great pain after you death.
Rengoku tried to smile again to others but your death took such a big toll in his heart.
Most of his smiles were forced or sad.
He didn’t take care of himself much for weeks till he finally got back to his usual self because Mitsuri and Senjiro was worried too much about him.
When your grave was properly prepared Rengoku went there by himself at first.
He sat down right infront and had your broken sword hilt-the only thing left from you.
His eyes screamed anger and sorrow. Along with deep revenge.
Tears dripped down his face as he looked up at your grave.
He gripped the sword hilt as he raised his head down.
“Y/n I will not fail to kill the one who put you through this pain. Please take care of mother for me (brother/sister).
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AUTHOR'S NOTE: I don't know how many sibling's mitsuri canonically has (They say 5 but I only know her younger brother-)
Don't mind the GIFS I just can't find good ones :'> (or ones that match the theme of the story)
Am I the only one that LOVES Platonic angst? It's just so good idk :'>
















