Author's Note: To be honest, this is just an itch that I've been wanting to write ever since I've watched and read Demon Slayer. And so, I thought to myself, "What if I combine my favorite character and my slowly becoming favorite manga into one?" And bam, you get this fic.

If you guys want more, then I hope so too because I had a lot of fun writing this.

"Onii – sama, is there something that you would like to add?" Oy, don't say those words at me. The only one that could say that to me that is Komachi and no one else. Okay, Kanao can say it too but I can't really appreciate the way that you say 'Onii – sama' to me when your voice is tinged with spite. "Aren't you interested, Onii – sama? A demon slayer being accompanied by a demon is something that would pique your interest." Don't you dare try making me a mad scientist with your words, Shinobu! I already receive enough ridicule from the other Pillars as it is!

"Not really." And that's the truth. To be honest, I'd like to focus more on advancing myself as it is. That, and because of the many novels that I've read, I decided to make use of it and wrote (plagiarize) numerous books. Under a pen name, of course. Who knew that Zaimokusa's name would be actually useful when writing (plagiarizing) books. Of course, Kanae would scold me for not taking any sleep even though I'm the one responsible for managing the mansion's finances. When I would try to put forward a rebuttal, she would give me one those look where if I say one bad word, she would scorn me.

It's really hard to explain as to how I've fallen in love with her, but fallen in love with her I've become. That, and I have a baby on the way. It's a good thing that it hasn't hit me like a blunt hammer when I first heard of the news, otherwise I've would've run all the way to Hokkaido if I take it badly.

"Don't be like that, Onii – sama. We don't want you to become like Giyuu." Ouch. As usual, Shinobu's words packs a punch. And it wasn't even aimed at me! I heard from the Kasugaigarasu that she and Giyuu had a scuffle. Is that the reason why Giyuu is currently making a face towards Shinobu? That would make sense if that's the case. I don't know why but my hand keeps sliding towards the hilt. There's no danger coming, so I wonder why. No matter, it's Shinobu anyways so I'm sure that she can take of herself pretty well.

"Anyways, we've diverted from the topic," It was your fault from diverting it too much, you know? "Our little demon slayer is waking up." And true to her words, he was waking up.

Deep dark eyes started to blink, his gaze peering into our forms. When his eyes turned towards me, I saw it.

The Sun.

Its almost as if I was looking at a living kotatsu. The emotions that hide within the kid's pupils are too pure. This was only highlighted when the first thing that he did was to look around in distress. Almost as if he was looking for someone. Then the words came next.

"Nezuko! Zenitsu! Inosuke! Murata – san!" Are they his friends? Nezuko sounds like a girl's name and from what I remember, Zenitsu Agatsuma is a student of that old fart while Inosuke Hashibira is the sole user of the Breath of the Beast. From what I've read from the report, those three managed to hold the fort before reinforcements came in. They definitely have potential. Heck, they might even become Pillars in the near future if they continue as it is.

Oh, the kid is slightly panicking now. Better calm him down. "Kid, calm down." My words seem to have an effect as the kid took a deep breath. Good, the sooner that we can finish this, the better. The other Pillars looked at me with varying interest, with Shinobu giving the most chilling of smile that I've seen. I haven't even done anything to you so why are you giving that smile!?

Creating a fake cough, she continued, "Before we could start the trial, why don't you explain the crime you have commit – "And before she could finish, the wannabe pineapple interrupted. "There's no need for a trial! Protecting a demon is a clear violation of the code and as such, within our rights to deal with him! We're going to behead him along with the demon!" It still amazes me that he could say those words without sounding self – righteous. Also, this isn't the Shinsengumi and you suck at roleplaying as Hijikata Toshizou.

"In that case, then let me decapitate his and the demon's head flamboyantly for I shall show you the most flamboyant of bloodsprays." Uh, no. Don't sound so chuuni while talking about decapitation. It's giving the shivers. Oh wait, I'm the Ice Pillar, so I've unintentionally made a pun. Ugh. Even a century apart, Zaimokuza is still haunting me with his chuuni-ness.

"Ah, what a pitiful sight this boy is. The poor soul… I pity him for being born at all." I'm so glad that you're not an actual monk. If you were, then I would just find a new monk to hang around with.

"These are the ten highest-ranking swordsmen in the Demon Slayer Corps, so you better show respect." Actually, I prefer that you think of me as a normal person. I'd rather do one of my 108 skills than to be treated as a riajuu. "The Pillars… "Great, the kid is panicking again. If this is what being a riajuu feels like, then I really don't want to be a part of it. They can explode for all I care.

"Let put him out of his misery." For someone so emotional, he can be seriously ruthless and the other two isn't really helping with the situation.

"Forget him. What will we do with Tomioka?" If Giyuu, the only person that I can relate to in terms of social suicide, helped the kid then he definitely has a reason, otherwise, he could've just killed them on the spot. "Based on what Kocho told us, Tomioka's just as guilty of breaking the Corps rule. How shall we deal with him? How should we make him responsible? What kind of lesson should we teach him?" Okay, Iguro is taking roleplaying a little bit too far, in my humble opinion.

Pointing at Giyuu, he continues, "Don't you have anything to say, Tomioka?" Of course, Giyuu doesn't reply, he instead looks at the floor or is it the grass? I can't tell due to how perfect Giyuu's poker face is.

"What's the harm? He did come along without resisting. His punished can be decided later." Uwah… To say that with a smile is really scary! Taking a breather, she continued, "That said, I'm more interested in is hearing this boy's story. The reason he's going on missions with a demon on his back despite being a demon slayer… I'd like to hear the reason from the boy himself. You do know that it goes against the Demon Slayer Corps rules, Kamado Tanjiro – kun."

The kid stayed silent. Most likely he's thinking of words to say. I don't blame him. If the same thing were to happen to Komachi… It's a good thing that she wasn't dragged into this mess.

"Let me ask you again, why are you traveling with a Demon when you're a Demon Slayer?" Before Uzui could threaten the kid, I interjected. "Is it because the Demon is a member of your family?"

Once again, my fellow peers looked at me. Shrugging, I continued. "If that's the case, then I understand. But do remember that once a human becomes a Demon, they eat the people nearest to them, which means, they eat either their friends or family. Tell me, Kamado Tanjiro, is Nezuko the Demon then?" Receiving a weak nod, I continued "Then let me ask you a question: Has she eaten a human?"

Perhaps emboldened by my words, he answered just as fiercely, "N-no! She never has and never will hurt and eat humans!"

"I don't believe every single word that just came out of your mouth." Obviously, Iguro objects to the notion.

"Your sister is possessed by a Demon. The only salvation that we could give to the poor child is her death!" Okay, your words are just plain rude. But I don't blame him considering that everyone here has suffered from the Demons one way or another so I don't have any reason to reject his words.

"Please listen to me. Two years have passed since Nezuko became a demon and in that time period, she hasn't devoured a single human!" The desperation behind his words is plain to see but the genuineness that is mixed within is telling me that his words are true.

"Are you an idiot? The fact that she hasn't devoured one doesn't mean anything if she would eat someone in the future." That is… actually true, I have to give him that. "Don't just sprout nonsense and prove it to us with max flamboyance."

"Umm… I do have my doubts about this whole scenario. I can't imagine the Master being in the dark about this situation." Earning a hum from the pineapple and flamboyance boy, she continued, "Do you think that it's okay to deal with this without his permission?"

"Ubuyashiki definitely knows about this." Saying his name without using an honorific is both a blessing and a curse. For one, the glares that I'm receiving is definitely not safe for work but using it gives me a sense of pride that I wouldn't normally have. "Otherwise, we wouldn't be called in our semiannual meeting if that's the case. At this moment, we're just waiting for him to arrive."

"My sister will fight by my side!" Woah, that scared me. Hope that nobody saw that. "She can fight as a Demon Slayer to protect humans!"

"Well, well, well, I see that you guys are having fun without me." Oh. Here's come the abrasive fool. "So, you're the moronic Demon Slayer who's being accompanied by a Demon? What the hell are you trying to accomplish?" Oh no, it seems like Shinobu is ticked off. That's a rare sight to see. "Shinazugawa – san, please don't act out of line."

"What did you say about the demon, kid?" Of course, he just ignores Shinobu. He's definitely not going to be removed in her 'people to be pissed at' list. "That she can fight as a Demon Slayer to protect humans?" I saw his hand move to the handle. Oh god damn it, don't you dare start a scene! "You know what we call that? A total delusion, you moron!"

The moment he drew his blade, I felt my body move. I don't know if it's because of how much I relate to Tanjiro in terms of being a brother but whatever the reason is, it definitely made me move. It's a good thing that I'm standing next to Gyomei but since that, I'm still too far away to properly block the stab, then I'll need to deflect it downwards.

Ice Breathing, Third Form: Snowflake Step Dance.

Focusing on strengthening the blood flow towards my legs, I felt my feet become light as a feather. This, in turn, causes me to move almost as fast as lightning without the drawbacks of using said form. I definitely didn't steal this from the Thunder Form, no sir. Barely managing to make it in time, I successfully managed to deflect the thrust downwards, causing the ground to create a dent in the process. I saw Shinazugawa's glare bearing into my eyes and so did the rest of the Pillars with their shocked expression. It's very funny to see Giyuu's shocked face but as of the moment, it isn't important.

"Why did you stop me, Hikigaya?" Shinazugawa demanded.

Shrugging, I answered. "I stopped you from making a bad decision, idiot." Before Shinazugawa could rant at me, I heard the twins talk.

"The Master has arrived." Our attention turned towards the door and there we see Kagaya Ubuyashiki, in all of his glory.

I'm going to be receiving a huge scolding later. I only hope that Kocho wouldn't overdo it much.