Daki let out an animalistic scream! 

Daki: YOU FUCKING BITCH! LET ME UP! 

She sent her sash to carve Nezuko apart, but even when severed Nezuko held herself together and reassembled herself. 

Daki was horrified. 

Daki: What are you?! YOU'RE A MONSTER! 

Nezuko: BLOOD DEMON ART: EXPLODING BLOOD! 

The demonic girl was set on fire! 

Daki: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! 

Nezuko then laughed like a maniac while smashing Daki's face into the ground! 

Daki cried and cried. 

Daki: No more! Please! Make it stop! MAKE IT ST- AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGH! 

Nezuko: HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA! 

A nearby Oiran saw her and was horrified. 

Nezuko saw her, and- 

(Y/N) and Tanjiro: NEZUKO! 

You both got her out of the way. 

(Y/N): CALM DOWN! 

Tanjiro: THIS ISN'T YOU! 

She was trying to fight you both off as Daki got up. 

Her face was scarred and burned, and one of her eyeballs was coming out of her head. 

Daki: How dare you. HOW DARE YOU SCAR MY BEAUTIFUL FACE! 

She put her missing eye in as she charged in, but then she was punched by Yang. 

Yang: Geez. I really hate that freaking sash of yours! 

Blake then pinned her down with- 

Blake: SHADOW BREATHING: THIRD FORM: RELENTLESS SHADOW! 

Yang: Hey guys, is that- 

Tanjiro: BLAKE! YANG! GET BACK! 

(Y/N): Nezuko is not herself! 

Blake: That's Nezuko? 

Nezuko growled like ... well a demon. 

Yang: Geez. That's crazy! 

(Y/N): How do we calm her down?! 

Tanjiro then remembered something. 

Tanjiro: (singing) Hush, hush, baby rabbit, on the hillside. Why are your ears so long? When I was small, mother ate the leaves of a tall tree, and that's why ... my ears are long. 

Nezuko then began to remember her mother, and how she sang it to her. 

And- 

https://youtu.be/FceWSDXlyMk

You pat her on the head. 

(Y/N): You poor thing. 

Blake: To think she had this power. 

Tanjiro just cried softly. 

Tanjiro: Mother, she's okay now. 

You then turned to Daki. 

(Y/N): Are you sure you're Upper Moon 6? 

Daki: WHAT?! OF COURSE I AM! 

(Y/N): Yeah, well Nezuko didn't really eat demons, and she kicked your ass. So- 

Daki: WAAAAAAAAAAAAAAAAAAH! YOU BULLY! YOU FUCKING BULLY! HOW DARE YOU! 

She began to throw a fit. 

Daki: BIG BROTHER! HELP ME! HELP ME! 

(Y/N): Brother? 

Then your Observation Haki kicked in as you pulled everyone out of the way- 

???: YOU FUCKING HUMAN! HOW DARE YOU HURT MY SISTER! 

Gyutaro (The Real Upper Moon 6 and Daki's older brother! He is extremely protective of his sister due to their rough upbringing and their negligent mother!) 

(Y/N): So, that's the real Upper Moon 6. Either that, or they share the position. 

Gyutaro freed Daki. 

Gyutaro: There there. Crying won't help your problem. Did they burn your fae? 

He fixed it. 

Gyutaro: You know how cute it is. You need to cherish it more. 

She hugged him. 

Daki: BIG BROTHER! THEY WERE BEING SO MEAN TO ME! 

He created sicles out of his body. 

Gyutaro: I'm looking forward to killing all of you. Yes, I am. 

He then got a nice look at you. 

Gyutaro: You. You've got a good looking face. Not to mention your skin is good. And you have no scars, or marks on you. Your shoulders are broad, and you're not flabby either. And those two girls, I bet they're your wives? 

Yang: Hey, not yet. We're his girlfriends. 

Gyutaro angrily growled. 

Gyutaro: YOU! I CAN'T STAND PEOPLE LIKE YOU! 

(Y/N): What because of- 

Gyutaro: Look at my disgusting body. It can't compare to someone like you. I should cut you open! 

Daki: They also cut up my Sash, Big Brother! THEY WERE SO MEAN TO ME! I TRIED MY BEST ON MY OWN! WAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH! 

Blake: Hey, you can't just hide behind your- 

Gyutaro looked at Blake with anger. 

Gyutaro: Don't badmouth my Sister! I won't forgive anyone who hurts her! 

(Y/N): Fine! COME ON THEN! IF YOU WANT A FIGHT! YOU GOT IT! 

You and Gyutaro charged at each other to fight, blades clashing. 

???: YOU GUYS! 

Ruby, Weiss, Zenitsu, and Inosuke appeared. 

Tanjiro: Ruby! Weiss! Zenitsu! Inosuke! 

Blake: Is he asleep again?

Weiss: Better to have him be useful than to have him complain! 

Inosuke: Exactly! ALRIGHT MINIONS! 

Weiss: STILL NOT YOUR MINIONS! 

Inosuke: IT'S TIME FOR LORD INOSUKE TO BE FLASHY! 

(Y/N): AAAAAAAAAAAAARGH! HINOKAMI KAGURA: FIRE WHEEL GETSUGA TENSHOU! 

You sent a projectile attack at Gyutaro just as- 

Gyutaro: BLOOD DEMON ART: FLYING BLOOD SICKLES! 

THey both countered! 

(Y/N): WOAH! 

???: Heh, that was really flashy. 

Uzui appeared. 

(Y/N): UZUI! 

Uzui: I had massive respect for you back then for what you did to Shinazugawa, but boy, you're real flashy! To be honest, you remind me of myself sometimes. 

(Y/N): I take that as a compliment! 

Gyutaro: A Hashira too? My, it looks like we have a real problem here. 

Uzui: You think so? Because flashy guys like us surround ourselves with women? I have three wives you know. 

Gyutaro: Then you have to die along with him too. 

(Y/N): Uzui, be careful. This guy is the real Upper Moon 6! That girl, she was his sister. 

Uzui: Guess that means killing them both will take them out! 

(Y/N): Yeah, cause- 

Daki appeared. 

(Y/N): Now it's even. 

Gyutaro: I don't have to worry with my little sister with me. 

Daki: Let's kill them both, Big Brother! 

(Y/N): No more Upper Moons are killing any more Hashira! I will not let this man die! 

You then thought about Rengoku. 

(Y/N): Kyojuro. 

Then you looked at your Nichirin Sword, the one you took care of since Rengoku perished to Akaza. 

(Y/N): I WILL OVERCOME ANY LIMITATIONS I HAVE! 

Gyutaro: I don't get it. You both should be poisoned! How? 

(Y/N): I'm immune to poison. 

Uzui: And I'm from a family of ninja. I've built up a resistance to poison. 

Daki: BULLSHIT! THEY DIED BACK IN THE EDO PERIOD! 

(Y/N): It's not true. Ninja still live on. 

Uzui thought about Kagaya. 

Kagya's words: Tengen, the path you choose is a hard one. It is hard to reject the values you learned as a child. You must always fight yourself at the same time that you're fighting on the field of battle. But in spite of your inner conflicts, I trust you to always fight for me and the innocent. Thank you Tengen. 

Uzui: Master, I should be thanking you for making me see the worth in myself. LET'S DANCE THEN! 

You and Uzui both clashed with Gyutaro and Daki as you slashed up the sash and Uzui let the beads on his blades explode to break them up! 

Daki went to hit Uzui, but you kicked her! 

Daki: AGH! 

Gyutaro: YOU BASTARD! DON'T TOUCH MY SISTER! 

(Y/N): I'll give you this! I admire how much you love her! 

You then punched him in the face as Uzui prepared to cut his head off, and you were close to decapitating Daki!

(Y/N): I hope you both have a good afterlife! 

But then the Sash stopped you both! 

(Y/N): DAMN IT! 

Uzui: Bad timing. 

Gyutaro: It doesn't matter what you try, bit by bit we're getting closer and closer to winning. 

???: DON'T COUNT ON THAT DEMON SCUM! 

Ruby appeared. 

Ruby: Servant of Muzan, you won't win! 

Inosuke then hit her. 

Inosuke: DUMBASS! I'M THE ONE IN CHARGE! 

Ruby: OW! INOSUKE! 

Inosuke: FEAR ME FOR I AM LORD INOSUKE GOD OF THE MOUNTAIN! AND ALSO MY UNDERLINGS! 

Weiss: WE'RE NOT YOUR UNDERLINGS YOU STUPID PIG! 

Gyutaro: What the? 

Tanjiro then appeared with Blake and Yang. 

(Y/N): HA! How do you like that now? There's nine of us! 

Uzui: Wait, what about- 

Blake: Don't worry about Makio and the others, they're taking care of everyone else. 

Yes, Makio and Suma were evacuating everyone in the vicinity. 

Gyutaro: 9 of you?! IT DOESN'T MATTER HOW MANY OF YOU ARE HERE! ALL OF YOU DIE! 

Tanjiro: I can smell it. He is the core. And the impact on his scent burns my throat a bit. Either way, we'll win! 

Ruby: You can't beat us! We're Demon Slayers! 

Daki: SHUT IT! YOU WON'T WIN IF YOUR HASHIRA FRIEND IS POISONED! 

Everyone except (Y/N) and Uzui: POISONED?! 

Uzui: I may be poisoned, but I can still fight! Never underestimate humanity! These people are the very best of my subordinates! They'll stand tall til the very end! Cut off their limbs and they'll fight with their teeth! 

Gyutaro: HA! May Demon Slayers have died trying to beat us. I've eaten 15 of you, and Daki has eaten more. 

Daki: Until dawn breaks, none of you are safe. And the night is always with me and Gyutaro! SO YOU- 

Then she saw a bunch of Ruby clones. 

Ruby: WEISS! BLAKE! YANG! ZENITSU! INOSUKE! 

She knocked Daki out. 

Weiss: We'll deal with her! You got him! 

Inosuke: HEY! I'M THE BOSS! 

Blake: Geez. How egotistical are you? 

Yang: Kick his ass alright?! 

You, Uzui, and Tanjiro were left to fight Gyutaro!