A/N: RENGOKU-SAN!

Narrator POV

Y/N, after the rescuse of Kanae, was now fully accepted as a Hashira by everyone

Hell, even SANEMI said he did well

Right now, Y/N was drinking some tea, with his bestie, AKA Sanemi

Y/N: What a wonderful day, isn't it?

Sanemi: Why in the hell are we drinking tea, when you're supposed to train the new recruits?!

Y/N: Come on bestie, don't be like that! We didn't had much bestie time!

Sanemi: LIKE I WANT TO STAY WITH YOU!

Y/N: WAAAAAAAAAAAAH! BESTIE DON'T WANT TO STAY WITH ME!

Sanemi grabbed Y/N's collar, before he tossed him to the entrance of the domain

He crashed on the ground, before getting up, and see the new recruits looking at him

Mizunoto: Uhm....... Who are you?

Y/N: My name is Y/N! I am the Hashira that will take care of the group!

Mizunoto2: A-Ah! We're sorry for being rude!

Y/N: Don't be! You're not like that BITCH, that I call bestie!

Sanemi, from afar: FUCK OFF!

Y/N: So! There's 9 of you, right? Well, while I'm here, you will become way stronger!

Mizunotos: YES!

Y/N took them to the training ground, and smiled at them

Mizunoto: What is the training?

Y/N: You will work on your breathing, in a spar against someone! We use wooden swords, so don't worry about injuries! Of course, since you're 9, someone will have to train with me!

???: I will!

Y/N looked at the Mizunoto who said that, and smiled

Y/N: What is your name?

???: Rengoku Kyojuro!

Y/N: Alright! Everyone, get yourself a partner! 

The Mizunoto got each a partner, as Y/N and Rengoku got in position

Y/N: Fight!

Rengoku rushed at Y/N, and clashed with him, pushing him back a little, surprising him

Y/N keep losing ground, until he stopped, and looked at the Mizunoto at his right

Y/N: You're holding your sword weaker than you should. Tighten your grip, and your speed and power will be greater

Mizunoto: Yes!

The Mizunoto applied his advice, and indeed, it was better

Y/N: Good! And you, don't try to block every attack, you can dodge too

Mizunoto 2: Yes!

Y/N smiled, before pushing Rengoku back, and rush at him

He did an upper slash, as Rengoku blocked it, having some trouble, as Y/N turn his head to his left

Y/N: Don't focus too much on your oppenents footing! If you can't even move properly, don't try to read your oppenent movement!

Mizunoto 3: Yes!

Y/N: Don't get too much on your guard, or else the fight will never finish! Try to do some attack!

Mizunoto 4: Understood!

Rengoku yelled, and overpowered Y/N, launching his blade on the air, and he went for a strike

Rengoku: You're mine!

The sword was inches away from Y/N face, but something landed on it, as Rengoku couldn't believe it

Y/N was just standing on his sword, smirking

The Hashira grabbed his own sword, and jumped back

Y/N: Speed also have it's importance in a fight. You can surprise an enemy with it, if they look down on you, which is most of the Demons case. Try to get faster, and also stronger at the same time!

Mizunoto: YES!

Rengoku: Flame breathing, 5th form: Flame Tiger!

Rengoku used his Flame breathing, as Tiger made of flame appeard, and charged at Y/N

The Hashira looked back, and saw the Mizunoto looking at the attack, and sigh

Y/N: Void Breathing, 2nd form: Beggining

He slashed horizontally, as the flame tiger stopped, before simply disappearing, as Y/N sigh again

Y/N: You really want to go to the breathing fight already? Alright then........ Everyone! The matches are over, come over here!

Rengoku: I'm sorry for what I did! I didn't thought of my action before acting!

Y/N: Don't be, that will be a great opportunity to see how you all are doing with the breathing

The Mizunoto gathered in front of Y/N, as he took some step back, and smile

Y/N: You all will attack me turn by turn, to see how you all are holding up in your breathing! People who will be able to make me use mine, will pass. The ones who couldn't, we will continue the training tomorrow

Rengoku: Let's all do our best, everyone!

Mizunoto: You can count on us!

One by one, the Mizunoto attacked Y/N with their breathing style, and so far, no one made Y/N use his own

Then, came the last one

Y/N: Alright, who's next?

Rengoku: I am!

He took his stance, as Y/N immediatly understood he had to take it seriously

Y/N: Ho...........

He took his own stance, before Rengoku charged at him, at full speed

Y/N: Void Breathing, 4th form......... Bis, space reflection

The Hashira grabbed a second woodern sword, before using both of his swords, to change the direction, directly into a tree

Y/N: Well, at least one passed........

He looked at the sword, and see they broke the next instant

Mizunoto: Woah! Rengoku managed to break the sword of the Hashira!

Mizunoto 2: He really is awesome!

Y/N: That will be all for today! Rengoku, you passed!

Rengoku: Yes!

Y/N: Everyone, we see each other tomorrow! Dimiss!

All the Mizunoto walked away, chatting, as only Rengoku stayed behind

Y/N: Something on your mind?

Rengoku: Yes! I wanted to know, if it was truly me, who broke the sword

Y/N: Well, to say the truth, yoy didn't. It's just that my breathing give so much pressure, that a normal sword will break after a few moves

Rengoku: I see! Well, I thank you for the training!

Y/N: If you need any sparring partner, I will be here, okay?

Rengoku: Yes! Thank you very much, Y/N!

He walked away, as Y/N looked at the sky, not saying a word

Timeskip

Y/N was in the domain, drinking some tea with Giyu

Giyu: Y/N, I have a question for you

Y/N: Go ahead

Giyu: Do you think I don't have any friends?

Y/N almost choked on his tea, before he looked at Giyu, but saw someone behind, smiling

Shinobu: Well, it's the truth, right?

Giyu: No, I have friends

Shinobu: Oh? And who then?

Y/N: ME OF COURSE!

Y/N stood at Giyu's side, and looked at Shinobu, determined

Shinobu: Oh? But you're friend with everyone~!

Y/N: NOT WITH YOU BIG ASS FOREHEAD!

Giyu: I agree, your forehead is pretty big

Y/N: GET HER BESTIE!

Shinobu: Wasn't Sanemi your bestie?

Y/N: We broke up

The said one appeard from window, and yelled

Sanemi: LIKE HELL WE WERE FRIENDS TO BEGIN WITH!

Y/N: You ate my cookie back then!

Sanemi: YOU ALMOST CHOKED ME WITH IT!

Y/N: SO YOU WERE FAKING OUR FRIENDSHIP?! WAAAAAAAAAAAAAAAAAAAAAAAAAAAH!

Sanemi: STOP CRYING LIKE THAT! YOU'RE A MAN FOR FUCK SAKE!

Y/N: SANEMI IS BULLYING ME! WAAAAAAAAAAAAAAH!

Shinobu: By the way Y/N, you haven't met Kanao, right?

Y/N: Who?

Shinobu took a step at the side, as someone was just behind her

Y/N: OOOOOOOOOH! HI!

Kanao: H-Hello.......

Y/N: Don't be so nervous! Giyu is calm, and the Gorilla at the window won't hurt you!

Sanemi: THAT'S IT!

The wall was cut, as Y/N jumped past Kanao, and run away, Sanemi chasing right after him

Y/N: MY EX IS COMING TO GET ME BACK! 

Kanao looked at both of them, surprised, before Shinobu smiled at her

Shinobu: Y/N may not look like it, but he's a good person! He is also very close to Kanae

Kanao: So Y/N...... Is like our brother?

Shinobu: If you put it that way, then yes, he is our brother

Kanao: Big brother....... Y/N

Y/N: WHOMST HAS CALLED THE ALMI- STOP TRYING TO KILL ME YOU HOE!

Sanemi: THEN STAY STILL!

Kanao smiled, and giggled, at the sight of this

Meanwhile.........

???: Muzan-sama, I have come to your call

Muzan: I want you to go and kill the new Hashira that joined the Demon Slayers, from what Doma told me, his name is Y/N, and he is at his level. Do not disappoint me, Akaza

Akaza: Yes, it will be done at once

Akaza went away, as Muzan, stayed on his own

Muzan: Y/N......... it have been a long time since I didn't heard that name

Chapter 4: Finished

A/N: In the next chapter! Y/N meet Akaza! What? The final move of Y/N is unleashed?!

'Chapter 5: The End'

Don't miss it at any cost, ok?