He put his two swords into the ground and put his hands out to side.

Inosuke: Beast Breathing, Seventh Form: Spatial Awareness!

He started to feel the air around him and after a few seconds, he got something.

Tanjiro: You find them?

Inosuke took his swords out of the ground.

Inosuke: Yeah! Follow me that way! I'm sensing a strong presence over there!

Tanjiro: You are? Way to go, Inosuke!

Y/n focused on where Inosuke was pointing.

Y/n: This demon isn't too strong though. It shouldn't be too much of a problem.

Him and Inosuke dodged an attack from puppet Demon Slayers.

Inosuke: We can't get anywhere with these guys around!

Tanjiro: Damn. Isn't there... Isn't there anyway we can get out of this?

Inosuke: To hell with this crap! That's it! I'm just gonna demolish them all at once!

Tanjiro: Stop it!

Y/n: No, Tanjiro. They're either suffering or dead, we have no time for your kindhearted morals.

Tanjiro: There must be a way to save them! Listen, we can hurt these people-

A controlled Demon Slayer came at Tanjiro but Murata blocked it with his own sword.

Tanjiro: Murata?

Murata: Just leave these guys to me and go on ahead, Tanjiro!

Y/n: Well, look who finally grew a pair.

Inosuke: Yeah, big talk from the guy who pissed his pants!

Murata: I never did any of the sort, you stupid boar! I wasn't even talking to you, so but out! I know I wasn't very brave back there, but I'm still a Demon Slayer! I'll find a way to hold them off! I know now I just need to cut the threads, and about their movement patterns are very basic, so I should be fine! I'll watch out for the spiders, too! There has to be people under even greater control that are closer to the demon! You have to help them!

Tanjiro: I got it! Stay strong!

Y/n: Before we go, allow me to help.

Y/n took a stance.

Y/n: Total Concentration. Bird Breathing, First Form: Preying Flock.

Y/n jumped around on the trees with a sky blue bird following behind him, leaving holes in them and cutting the threads.

Murata: Bird Breathing?

Y/n landed back with Tanjiro.

Y/n: Be prepared for when they get up.

Murata: Tell me, what was your name again?

Y/n: Y/n L/n. Now, let's go, guys.

The three ran into the direction Inosuke pointed to.

Inosuke: Dammit! I can't wait to get back and pumble that guy!

Tanjiro: Stop talking like that!

Inosuke: Didn't you hear him call me "a stupid boar," Monjiro?

Tanjiro: My name's "Tanjiro"! Anyway, are we heading the right way?

Inosuke: My senses have never lead me astray! Although I-

Inosuke ran into some threads.

Inosuke: What are all these annoying threads?

Tanjiro: It must be because we're closing in on the demon!

Y/n: That's right, I can feel it.

They stopped when they saw more puppt Demon Slayers.

Inosuke: There's another group here.

This one was a female Demon Slayer.

Female Demon Slayer: Stop. Don't come any closer. You have to go and bring someone here who's a higher rank! It's only for certain to stop the rest of us from being killed.

She was crying.

Female demon slayer: Help us! I beg you!

She was about to swing her sword.

Female Demon Slayer: Run away!

Y/n stopped the swing and used Eleatara's wind blade to cut her sword in half.

Y/n: That slash was faster than the ones before. And they seem to be having a harder time resisting.

Tanjiro: (Thinking: The demon that's doing this has no concern for the strain its putting on her body. How cruel.)

More got up and they had really messed up arms.

Demon Slayer: Please end my life! All the bones in my (grunt) arms and legs are broken... piercing my insides! Every time I'm forced to move, the pain is unbearable! I can't take it anymore! Either way. I'll die. So, please. Just finish the job!

Tanjiro looked at them with sorrow.

Y/n: Very well.

Tanjiro: Wait, we gotta figure out a way to save him!

Inosuke: Oh, shut up! You need to stop your belly aching! He's asking us to put him out of his misery, all right?

After some blocking, Inosuke rejoined them.

Inosuke: These guys are speedy, too. If we get caught napping, we'll be done for!

Tanjiro: I know that! Just give me a moment to think!

Y/n: While you're thinking, I'll put these bastards out of their misery.

Tanjiro: Y/n-

Y/n: If we continue to let them go like this they will suffer. Is that what you want?

Tanjiro thought for a moment.

Tanjiro: No, it's not.

Y/n: Well, then it's settled.

Y/n jumped to avoid a slash and landed on the surface of a tree.

Y/n: (Thinking: My training may have weakened the strain Bird Breathing puts on my legs, but if I use too many I'll surely lose the ability to move. And that's when I'll be at my weakest.) Bird Breathing, Second Form: Gliding Slash!

Y/n jumped from the tree forward with a sky blue bird following slashed of the heads of the controlled Demon Slayers then landed behind them and was still luckily able to move.

Y/n: That should end their suffering.

He watched as Tanjiro and Inosuke throw the headless bodies in to the trees tangling them up.

Inosuke: (cackling) Look at that, W/n! I've charged up more of them than Kampjiro!

Y/n: For the last time. Our names are Y/n and Tanjiro. Get our names right, or I will kick you right in the face.

Tanjiro: Let's go.

Y/n: Right.

Inosuke: No arguments here.

They went back on the move.

Inosuke: It's this way! We'll reach them before you know it!

Tanjiro: I'm picking up two more scents!

Y/n: I can't believe I didn't sense it until now.

Inosuke: I'm going to hack its head right off its shoulders!

He jumped to attack the the demon, but to his surprise the demon didn't have a head and it countered Inosuke's attack.

Inosuke: That thing...

The headless demon was huge and muscular, it didn't have a shirt, gray pants, it had two gaint sickles for hands, and it was also being controlled by threads.

Inosuke: Doesn't even have a head!

Meanwhile.

Zenitsu was running around the forest with Ukogi on his head.

Zenitsu: Where the heck are you Tanjiro? You too, Inosuke. I wouldn't even mind if it's just you, Y/n. Don't just leave me here all by myself in this terrifying forest!

Back with them.

They dodged the headless demon's sickle and jumped back a short distance.

Inosuke: This thing's got no weak spots! Where am I supposed to cut it? What do we do? What do we do?

Y/n: You're starting to sound like Zenitsu.

Tanjiro: Calm down! Listen closely, all right! Slash in the right part of the neck to the left part of its waist! It'll be tough, it's a lot of mass to cover, that said...

Inosuke charged in.

Tanjiro: No, wait! Don't go alone!

The demon tried to strike Inosuke.

Inosuke: It's fast.

Inosuke dodged, but he got cuts on his shoulder, side, and hand.

Inosuke: I can still dodge it though!

Inosuke got tied up in threads and the headless demon was about to finish him off.

Inosuke: I'm a dead man!

Tanjiro blocked the sickle with his sword and then cut Inosuke free.

Tanjiro: Inosuke, this is a tough one, but we can do it! If we put our heads together, we'll be able to win!

Inosuke: Damn you! Don't make me feel any giddier than I already am now!

Y/n: I have a plan, but you guys aren't going to like it.

Tanjiro: If it's a plan made by you, I'll trust your judgment.

Y/n ran past the headless demon and he squatted with his back turned to the demon's.

Y/n: Bird Breathing, Third Form: Soaring Heights.

He jumped off the ground so hard he broke it.

Tanjiro: The Third Form of Bird Breathing?

Y/n from the sky saw the one controlling the demon. She had white hair and skin, and white clothes like the small demon they saw earlier.

Y/n: Found it.

The headless demon was about to strike Y/n.

Y/n: Such dishonor.

Y/n drew his sword and slashed it in front of him, but it actually cut the demon from its right neck to its left waist leaving Tanjiro and Inosuke in shock.

Tanjiro: How did you do that?

Y/n landed.

Y/n: Little family technique. Inosuke, throw Tanjiro over those trees.

Inosuke: You got it!

Tanjiro: What?

Y/n: That's where the demon is, we're counting on you to decapitate it.

Inosuke threw Tanjiro over the trees and Tanjiro saw the demon.

Inosuke: (Thinking: It seems like they've got everything figured out. I gotta say, that's pretty irritating! Almost like they can predict the future. It's as natural for them as as water flowing down a river with a flock of birds high in the sky. It's not about going first with these kids, it's all about the battle itself and watching it flow like a raging current and swarming flock!)

Tanjiro was closing in on the demon.

Woman Demon: No! That doll was my fastest and strongest! And they still won? It's Rui's fault for coming to me with his threats! That's why I panicked! It's not my fault!

She looked up and saw Tanjiro falling down towards her.

Tanjiro: Water Breathing, First Form...

Woman Demon: (Thinking: He's going to cut my head off! What do I do? What do I do? Although, if I die, I'll be free. I'll find peace.)

Tanjiro's eyes widened.

Tanjiro: (Thinking: Fifth Form: Blessed Rain After The Drought.)

Woman demon: (Thinking: This feeling, it's like I'm being showered by a gentle rain. It doesn't hurt, not at all. I just feel warm. I never dreamed my end would be this tranquil. And now, I'll be released.)

Tanjiro looked at her with his kind eyes.

Woman Demon: (Thinking: Those eyes... Such kind eyes... When I was human, I think there was someone who used to look at me with those same, kind eyes. I wonder who that was. I can't remember. I just know it was someone who always cherished me. I wonder how that person is doing now.)

She began to shed tears as her head began to turn to ash.

Woman Demon: Someone from the Twelve Kizuki is here.

Tanjiro gasped when he heard this.

Tanjiro: Wait!

Woman Demon: Be careful.

She finally disappeared and Tanjiro went back to Y/n and Inosuke.

Y/n: Did you kill the demon?

Tanjiro: Yes. I also found out a member of the Twelve Kizuki is here on this mountain.

Y/n: Really? Do you know what rank?

Tanjiro: No. All I know is that they're just within our grasp.
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Review.

Inosuke: Ha, ha! Anything you two can do, I can do too, you know.

Tanjiro: Yeah, well I know something you can't do, Inosuke.

Y/n: It's probably one of your most iconic features.

Inosuke: What's that?

Tanjiro: After all this time, you still can't say our names right.

Y/n: And I believe I even said that I'd kick you if you couldn't.

Tanjiro: Y/n.

Inosuke: I remember what your damn names are, it's Gonpachiro Kamaboko and W/n Wl/n!

Y/n growled.

Tanjiro: Y/n, don't engage. Those are incorrect.

Inosuke: Gengoro Shakariki and W/n Wl/n!

Tanjiro: Still wrong.

Y/n: That last name you gave him doesn't even sound like Kamado.

Inosuke: Tontaro Itadaki and W/n Wl/n!

Tanjiro: Not even close! Moving on, it's time for a Taisho-era secret! I hear that Inosuke can call someone by their correct name about once every seven attempts. You already mangled them three times. Can you really get them right?

Inosuke: Kanjiro Anago and W/n Wl/n!

Tanjiro: Hey, your getting warmer!

Inosuke: Tangoro Hamado and W/n Wl/n!

Tanjiro: So close!

Inosuke: Janjiro Amado and W/n Wl/n!

Tanjiro: Your nearly there!

Inosuke: Tanjiro-

Tanjiro: Keep going!

Y/n: Almost there!

Inosuke: Hey, who cares what your names are anymore?

Tanjiro: We were this close to hearing it.

Inosuke: Next, Chapter 17-

Y/n: "Piercing Nostalgia."

Inosuke: Hey, that wasn't it, Y/n! Was it, Tanjiro?

Tanjiro: He said them!

To be continued.