Dark secrets ~ Rengoku x reader

𝑩𝒂𝒕𝒕𝒍𝒆𝒔

Y/n's POV:

The rhythmic clatter of the train wheels resonated through my mind as I unleashed a series of precise strikes against the demonic entities that threatened the innocent passengers. The nightmare's grip still lingered, but with every slash, I sought to cut away the haunting memories.

"Sixth Form: Perpetual Night, Lonely Moon - Incessant!" The words flowed effortlessly as I danced through the train car, scythe in hand. The barrage of crescent moon blades sliced through the air, creating a symphony of destruction that warded off the encroaching darkness.

Amid the chaos, my senses heightened. The scent of blood mixed with the metallic tang of the demons' flesh assailed me, a bitter reminder of the relentless battle. Every swing of the scythe was a declaration—an oath to protect those who couldn't defend themselves.

As the demons tried to consume a woman and child, my instincts kicked in. With a swift, decisive motion, I intercepted their advance. "Seventh Form: Mirror of Misfortune, Moonlit!" The scythe, an extension of my will. A frontal crescent-shaped slash rippled through the air, a radiant display of moonlit misfortune that shattered the demonic threat.

The woman and child, momentarily shielded from peril, stayed fast asleep not knowing the dangers that were on the train. It was a burden I bore willingly—the weight of their lives on my shoulders. In the fight against demons, there was no room for hesitation or doubt.

Yet, despite the fierce battles, my mind continued to grapple with the residual echoes of the nightmare. Each clash, each strike, was a step toward reclaiming control, but the dream's impact lingered, a silent adversary in the shadows.

The mission on the Mugen Train was more than a physical trial; it was a relentless confrontation with the demons both external and internal. With each passing moment, I fought not only for the passengers but for my own redemption from the nightmares that threatened to consume me.
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As I was making sure none of the sleeping passengers got hurt by this weird fleshy thing I heard a loud agonizing scream then the train slid off the rails and tipped over I soon exited the train to see inosuke holding up Tanjiro I quickly ran to them to see Tanjiro with a stab wound "holy sh*t who stabbed you!" I asked "an engineer" Tanjiro said "okay well don't move so much you and everyone else did a good job" I said "you've mastered total concentration constant that's quite impressive" Kyojuro said "mr rengoku" Tanjiro said quietly "your one step closer to being a hashira that's one step out of a thousand mind you" Kyojuro said "I'll do my best" tanjiro said "your bleeding from the gut regulate your breathing take full control of it picture your nerves reaching all through your body can you see the torn blood vessel concentrate harder" Kyojuro said as Tanjiro took care of his breathing "I'm so glad your alright Kyojuro" you said kissing him passionately he kissed back before he spoke again "me too I'm glad you are alright too" before he turned his attention to tanjiro "that's it now stop the bleeding focus! Good you succeeded mastering your breathing it will open many doors for you now it won't stop everything but it will help you will continue to grow stronger" Kyojuro said "thank you" Tanjiro said in response. I soon left to go check on the passengers and the other slayers.

No one's pov:
Soon a demon emerged from the mist it's demonic aura stong and powerful uppermoon 3 one of the strongest demons "those eyes he's upper three what's he doing here" Tanjiro said as Kyojuro readied his blade as upper three when straight for Tanjiro "flame breathing second form rising scorching sun!"  Said slashing upper threes hand but in an instant he regenerated his entire arm "that's a fine sword" upper three said licking the blood from the bottom of his palm. His speed of regeneration and sheer malice behind his attack so this is an upper rank "why would you go after a wounded person over me" Kyojuro said "I thought he would get in the way of our little chit chat is all" upper three said "what would you like to discuss while this is our first time meeting I already dislike you" Kyojuro said "is that right? Well I dislike weak human beings the mire sight of them makes my skin crawl" upper three said "if that is the case I do not believe we will ever get along" Kyojuro said "be that as it may let me make you an offer why don't you become a demon as well" upper three said "no thanks" Kyojuro said "I can tell just by looking at you your strong a hashira huh your fighting spirit has been tempered like quality steel your name?" Upper three said "I'm the flame hashira Kyojuro Rengoku" Kyojuro said "I am Akaza. Kyojuro let me tell you despite being a hashira your strength is not enough because your merely a human destined to grow old and eventually die become a demon Kyojuro doing so would allow you to better yourself to live another hundred or two hundred years" akaza said of all the demons I've met so far he smells the most like Kibutsuji I have to help fight him Tanjiro thought "both growing old and passing away these are the things that make being human beautiful they may seem like weaknesses to you but our lives are all the more precious and honorable because of them you see true strength dose not just refer to physical body this boy is not weak don't insult him let me be clear the two of us will never see eye to eye no matter what twisted reason you give I will not yield" Kyojuro said "I see" akaza said as he activates his blood demon art "technique development destructive death compass needle" akaza said as a wired pattern showed on the floor as akaza stuck out his hand in a stop sort of motion "I guess I'll just have to k*ll you then" akaza said the two began fighting akaza throwing punches and hits while Kyojuro used his sword the two were fast attacking back and forth. I can't keep track of either of them Tanjiro thought "in all my years I've never got to k*ll a flame hashira no one has yet to take me up on my offer either" akaza said as he attacked Kyojuro and Kyojuro attacking as well attack after attack Kyojuro severing arms and legs "why do you think that is? As a fellow master of the martial arts I just can't comprehend it not when only the chosen ones can be demons" akaza said throwing a punch but Kyojuro cut his arm but aka a regenerated it and went in for another attack "watch the hideous decline of someone blessed with your powers it pains me more than you know while your still young and strong your life should be cut short" akaza said as Kyojuro and akaza continued their fight "destructive death air type" akaza said as Kyojuro searched for him in the air akaza landing a blow  after blow to Kyojuro after the first hit Kyojuro began to block his blows "flame breathing technique forth form looming flame undulation" Kyojuro said as flames came from his blade and he went in for an attack. I can't slice his head off if I continue fighting him at a distance like this very well Kyojuro though at he ran forward ready for close combat making a slice that almost cut ajax as neck. Those reflexes brilliant! Akaza thought as Kyojuro attacked both attacking at the same time both fast and just like light "those breathtaking sword skills will be lost too doesn't that thought make you sad Kyojuro?" Akaza said "they are simply aspects of being human being why would I?" Kyojuro said.

Y/n pov:
I soon walked out of the train to see Kyojuro in a battle but who was he fighting "stay there we can't reopen that wound of yours it'll k*ll you" h said I rushed to Tanjiro "his right who ever he's fighting I'm sure he'll be alright" I said not paying attention to the fight but the sound of hits and blade cuts could be heard throughout the night whoever he was fighting he was strong "Rengoku!" Tanjiro said "watch out bug eyes" I heard inosuke say "bug eyed excuse me what" I saod flabbergasted did this kid just call my boyfriend big eyed REALLY big eyed! I thought I looked back to the fight to see who he was fighting my eyes when wide under my mask and my breath hitched I tried to scream I knew akaza he would kill Rengoku I needed to say something maybe he would look at me and realize maybe I could but I can't reveal my secret or identity I began hyperventilating tears welled in my eyes I got up my knees still bent trying to stand up all that way but my knees I only got a foot apart from Tanjiro and the others before my knees buckled and I fell to my knees.

Akaza pov:

Hit after hit me and Kyojuro fought but he was going to die though he severed my arms i regenerated in an instant "killing you know would be a waste you haven't reached your peak yet" I said punching Kyojuro's rib hearing a crack in the process "I'm just a few short years your abilities would be sharpened to an even finer point" I said as I hit his eye when all of a sudden I heard a woman's scream "KYOJURO" my eyes widened as I saw her lord muzans daughter crying as she screamed for Kyojuro was this him the guy she loved "she's going to hate me if I kill you" i whisper all while In the background I could hear her cry as the boar boy and redhead consoled her I couldn't kill him. I promised her he really seemed like a good guy. As the sun began to rise I fled without killing him I left him lots of damage though cracked ribs an eye some minor bones damage to organs.

Y/n's pov:
as akaza fled he sent me an apologetic look I knew if he never heard me he would have killed him I got off my knees and ran to Kyojuro as I cried I almost lost the love of my life the man that makes me feel normal. "Kyojuro" I said as my cries hitched here and there this was all my fault everything I love is delicate my family ties could ruin everything then again letting my family die could bring downfall as well "Kyojuro I-l-im so glad your alive" I said as he wrapped an arm around me "stop cry sweetheart all that matters is that everyone is alive" Kyojuro said as I buried my head in his chest as carefully as I could.

Y/n's pov:

Soon the kakushi arrived and put Kyojuro on a stretcher and took him back to headquarters and the rest of us headed back too though I was injured I ran to headquarters as a entered the butterfly mansion I bumped into shinobu "whoa y/n calm down"  she said i looked at her "where is Kyojuro where is he" I said tears threatening to spill out she let me to his room and I stayed by his side not leaving to eat or anything.

Akaza pov:

As I entered the infinity castle there everyone was there I sat next to Daki and sighed "I almost k*lled your daughters boyfriend I didn't even know it was him until I saw her she was screaming for him she was crying" I said "you what good you didn't kill him or she would probably never talk to you again" Daki said and I nodded in agreement.