Zenitsu and Shoichi run through the halls, searching for Nezuko.

"Where are you, Nezuko?!" Zenitsu calls, 'I can still hear that creepy sound. Stay safe, Nezuko!'

"Um, Zenitsu, is it just me, or are we going around in circles?" Shoichi asks, huffing.

"I knew it! I was getting that same feeling! That's my boy, Shoichi! I knew I could count on you!" Zenitsu turns to a door, "All right, could you check to see if this room is safe?"

"Ahh.." Shoichi shakes his head.

"What the—!? All right, all right! Just stop giving me that look! I'll do it myself!" Zenitsu cries.

Zenitsu tip-toes to the door and opens it quickly, revealing a hallway.

"Ahh..." Zenitsu sighs, "There's nobody around. Let's go this way!"

The two run down the new hallway.

"Nezuko, please show up!" Zenitsu pleads.

The sound of a drum fills Zenitsu's ears. In seconds, the whole hallway was rotated vertically.

"Huh?" Shoichi looks around the at new flipped surroundings.

"The room... Just flipped!!!" Zenitsu exclaims.

In a few seconds, Zenitsu and Shoichi started falling.

"Ahhhh!!" The two kids exclaim.

Shoichi and Zenitsu end up falling through several doors, one of which leads to the outside in the daytime.

Nezuko currently fights Kyogai, flipping and turning on the attacks Kyogai sends her way.

"Ngh..." Nezuko groans.

Kyogai beats the drums on his shoulders to flip the room in several directions.

"Gah!" Nezuko exclaims in pain, 'I can do it! I know I can do it! I'm a girl who gets things done!'

Nezuko feels and hears her broken bones creak.

"Gah!" Nezuko feels tears prick at her eyes, 'Broken bones or not... no matter what... I can do it! I will fight!'

Kyogai continues to flip the room, causing Nezuko to grab onto a lantern to stop from falling to her death. Kyogai sends an attack towards Nezuko, she dodges it by swinging on the lantern she lands on.

"Ngh!" Nezuko groans, 'show him how unstoppable you are! Broken bones or not!'

Kyogai flips the room more, causing Nezuko to stray further from him in the room.

"Gah!" Nezuko's bones creak once more as she swerves an attack, 'it's no good! Nothing's changed at all! Spirit alone won't get me anywhere! Your head, use your head! Not just spirit!'

An attack head straight for Nezuko.

'Think! Think! Think!' Nezuko's head pounds as she thinks of a way to avoid being chopped to pieces.

Nezuko lets go of the lantern, sending her plummeting to her death. 

"Ah!" She exclaims.

Nezuko sees a door and grabs onto the frame, inches from the ground.

'Close call! I barely survived that!' Nezuko lets her feet dangle from the door frame.

"Damn! This is so annoying! I have to consume some rare blood!" Kyogai roars furiously.

Nezuko drops the ground, which is the side wall in the case, but Kyogai flips the room. Nezuko is then tossed to the floor again.

"Urgh..." Nezuko springs up from the floor, despite the hellish pain she experiences, 'There isn't even time to stop and think!'

Kyogai beats the middle drum. Nezuko smells the attack and jumps up, avoiding the claws.

"Hey, you! What's your name!" Nezuko shouts, 'I already know his name from the writing, but I need confirmation.'

"Ngh... Kyogai." Kyogai answers.

"Kyogai! I'm not handing over Kiyoshi—the human with rare blood to you! I will not cave! I won't give up!" Nezuko says with confidence.

"Ngh..." Kyogai groans.

"Just give it up, will ya'?" A voice rings in Kyogai's head.

"I'm going to get my hands on rare blood and reclaim my place among the Twelve Kizuki!" Kyogai yells, getting enraged.

Then Kyogai starts beating his drums furiously, but recklessly. Most of his attacks miss Nezuko, some of then blasting open a closet full of paper. The paper flew through the room.

"Grrr!" Kyogai growls, remembering some of his past.

"Just give it up, will ya'?! It's so boring! Ya' writing is so boring! Every last word is utter trash! No beauty, no fragility, no impact! Why don't ya' forget about writing!? It's justa' waste of paper and fountain pens!" A man yells at Kyogai, "ya' never even step outside these days! No wonder ya' so boring! Ya' should just enjoy ya' hobby, playing the tsuzumi, as long as ya' shut in here. Not that ya' have the skills to teach that, either!"

The man steps on Kyogai's writing. 

"Ah..." Kyogai looks at him, shocked, "Grr..."

In the present, Kyogai screams, "out of my sight! You damn insect! Rapid Drumming!!"

'Don't tell me he can strike the tsuzumi faster!' Nezuko stares in disbelief.

Kyogai picks up the pace of beating his drums by a mile, forcing Nezuko to tumble in the room. 

"Grrr!" Kyogai growls.

"Ahh!.. ah!" Nezuko screams, 'The speed of the rotations is making me dizzy! This is bad! But that is an amazing skill! Not only that, he has five claws instead of three!'

Nezuko flips back and sees Kyogai's writing scattered across the floor.

"Ngh..!" Nezuko sticks a perfect landing.

Nezuko lands carefully, with one leg sticking in the air high above her head. She kept perfect balance while avoiding to step on Kyogai's writing.

"Ah.." Kyogai sees this and looks at her with a shocked expression on his face.

"Ngh..." Nezuko huffs, 'Still got it.'

Nezuko dodges the incoming attacks by using her leg to jump up.

'Because I dodged his blows without stepping on the papers and slipping, I now know how to move my body without aggravating my wounds and how to breathe!' Nezuko exclaims in her thoughts.

Kyogai sends multiple attacks towards Nezuko. 

'Take shallow breaths, quickly! Use that breathing technique to reinforce the muscles around your broke arm! Right before the claw attack, there's a scent of mold!'

Nezuko smells the slight scent of mold in the air.

'Here it comes. The claw attack. Above! Left! Right! Behind!' Nezuko dodges all of the attacks with strict precision.

'Ngh... She evading all of my attacks!' Kyogai thinks.

Nezuko closes her eyes and breaths.

'Total Concentration... Water Breathing..' Nezuko calms herself down.

Nezuko prepares her blade and charges towards Kyogai.

'Ninth Form: Splashing Water Flow, Turbulent! Minimize the landing time and area as much as possible.' Nezuko opens her eyes.

'She's adapting to the room's orientation changes!' Kyogai pauses.

'Go. Get in there. Get within striking distance. Forward!' Nezuko gets closer to Kyogai.

Nezuko's eyes widen as she sees the opening thread appear.

'The Opening Thread!' Nezuko prepares for her final clash with Kyogai, "Kyogai!"

"Ah..." Kyogai looks up at Nezuko.

"Your Blood Demon Art was truely incredible!" Nezuko exclaims.

"Ah..." Kyogai gasps.

Nezuko finishes the job, beheading the demon.

"Ahh..." Kyogai gasps.

Nezuko lands on her feet, but feels a tight pain in her chest.

"Ah!!" Nezuko screams out of pain, 'ouch, ouch, ouch, ouch! I took a deep breath by mistake!'

She falls to her knees and tears prick at her eyes.

"Ugh..." Nezuko slaps her face in disappointment, 'I'm the eldest daughter! The eldest!'

"Girl..." Kyogai mutters.

"Huh?" Nezuko turns his way.

"Answer me. Do you think my Blood Demon Art was incredible?" Kyogai asks.

"It was amazing... but I can't forgive you for killing humans." Nezuko says truthfully.

Kyogai's head starts to disintegrate. 

"I see..." Kyogai whispers.

"Oh, I need a blood sample." Nezuko says, picking herself up and grabbing a blood vile from her haori.

She throws the collector on Kyogai's bloody arm and the vile fills up to the top.

'It extracted the blood... so it really does extract blood automatically if you stick it in there. Yushiro is sure skilled, creating something like this. I'm not sure why I didn't like him in the first place.' Nezuko thinks, picking up the sample.

A small cat mews behind Nezuko.

"Oh? A cat? You're the one who is delivering this to Miss Tamayo, huh? There there, thanks!" Nezuko says, petting the cats head lightly, it purrs in response.

Nezuko puts the sample in the cat's supply pack and ties it for the cat. 

"All right. You're set. Take good care and be safe, okay?" Nezuko reassures, waving goodbye.

The cat turns around and starts running, it meows to conceal itself.

'I was told that under Yushiro's spell, it would be invisible until is meowed, and then vanish again once it mewed a second time. So it' true, huh?' Nezuko gets lost in her thoughts about her friend until she suddenly remembers about Kiyoshi and Teruko, "Ah! I need to find those two!" 

Nezuko stands up quickly.

'My... writing...' Kyogai thinks.

"Ya' writing is just so boring! Every last word is utter trash! No beauty, no fragility, no impact."

'It wasn't trash at all. At the very least, not to that girl. She saw no fit to trample on it.' Kyogai stared at Nezuko.

"Rest in peace, Kyogai." Nezuko said with a kind expression.

Nezuko bows to Kyogai before leaving.

'Both my Blood Demon Art and my tsuzumi playing... have been recognized...' Kyogai starts to cry as his body finishes disintegrating.

Nezuko walks through the mansion, calling Kiyoshi's and Teruko's names.

"Kiyoshi! Teruko! Kiyoshi! Teruko!" Nezuko calls. 

Nezuko opens a door to see Kiyoshi and Teruko.

Out of fear, Teruko throws a large book at Nezuko, but it misses

"Ahh!" Teruko screams.

Kiyoshi, also out of fear, throws a pot at Nezuko, it also misses her.

"Ahh!" Kiyoshi screams.

"Ah!" Nezuko exclaims, watching the pot wiz by her.

Another book that was thrown hits Nezuko in the forehead.

"Gah!" Nezuko exclaims.

"Ah.." Teruko gasps, releasing who she threw those items at.

"Nezuko..." Kiyoshi sighs, relived.

"Why are you throwing stuff at me?!" Nezuko scolds.

"We're so sorry! The tsuzumi disintegrated, so we panicked!" Kiyoshi explains.

"Oh, I see. Well, I'm glad you're safe." Nezuko smiles.

Teruko starts to cry, so Nezuko walks up to her and bends down. Nezuko pats Teruko and hugs her.

"Waahh!" Teruko cries while Nezuko holds her tight.

"You did a good job hanging in there. You to, Kiyoshi." Nezuko reassures.

"Yeah." Kiyoshi mutters.

"Come on, let's head outside. I'll wrap my arm around your shoulder to support your weight." Nezuko suggests.

Nezuko lets go of Teruko and wraps her arm around Kiyoshi's shoulder and starts to walk in the hallway. Teruko does the same on Kiyoshi's other side.

"Is your leg okay?" Nezuko asks.

"Yes." He answers.

"You have to be brave just a little longer. I'm picking up your brother's scent. He must be outside. He is safe... Ah...!" Nezuko trails off, smelling something unusual.

'Blood! Rare blood, too! Tanjiro!' Nezuko gasps, realizing her brother, a demon, is rare blooded.

"What's wrong?" Kiyoshi asks.

"Nothing! Let's hurry!" Nezuko picks up her pace, along with Teruko and Shoichi.

When they reached the exit, the light flooded their eyes. When their eyes adjusted, they were welcomed by Zenitsu hugging Tanjiro's box in protection. Another boy, the boar man from earlier, was kicking Zenitsu's face over and over.

"Urah!" The boar yells.

"Ngh!" Zenitsu groans.

"Move it, bitch!" The boar commands.

"Ugh!" Zenitsu surprisingly isn't crying, he's enduring the pain.

"Take that!" He kicks him harder than before.

"Ah!" Zenitsu yelled out of pain.

"Draw your sword and fight me! You spineless bastard!" The boar shouted.

Nezuko stared at the scene in front of her, dumbfounded. 

"Ahh..." Nezuko gasped.

Nezuko turned her head to the trees to see Shoichi crying behind them.

"Mmm..." Shoichi cries.

"Nezuko... I protected it... because you said... Ngh...! ...this was more important than your life..." Zenitsu muttered loud enough for Nezuko to hear.

Nezuko then realized how mean she was to Zenitsu, she would make up her impoliteness to him later. Now, she needed to deal with this boar bastard.

Earlier, Zenitsu is lying in the grass, unconscious.

'The thing is... I've always had good hearing. One time, I knew what people said while I was asleep, and that creeped everyone out. I'm not hearing a demon anymore... Nezuko, you defeated that demon, didn't you? I can hear you guys, but also these weird-sounding, loud footsteps.' Zenitsu imagines what he is saying in his dream.

"...itsu! Zenitsu! Zenitsu!" Shoichi exclaims, shaking Zenitsu.

Zenitsu wakes up from his uncomfortable slumber, "Ah... ahh..." 

"Ah! Thank goodness! Are you all right?!" Shoichi asks, concerned.

"Ah..." Zenitsu groans.

"When the room spun around, we got thrown outside. We fell from the second story window." Shoichi informs.

"Ah... Did we now?" Zenitsu says in a deep-ish voice.

"Yeah. You were protecting me, so I'm fine. But..." Shoichi trails off.

"I'm glad to hear that. So, tell me, why all the tears?" Zenitsu asks, going to wipe off Shoichi's tears.

While wiping Shoichi's tears, Zenitsu notices his own hand, it was coated with his blood.

"Hm?" It took Zenitsu a second to realize, "Now I get it! I fell right onto my head, didn't I?!"

"Yes..." Shoichi looks away.

"Am I gonna... Am I gonna die?! Ah... My head is starting to spin!" Zenitsu cries.

"Hahahaha!" Laughing comes from the mansion,

"What's this? What's that? What's that?" Zenitsu says over and over.

"Comin' through! Comin' through!" Someone yells.

The boar monster from earlier bursts through the doors leading inside the mansion.

"Ahhh! There it is again! The monster boar!!" Zenitsu exclaims.

"Hahahaha! I'm getting a demonic vibe!" The boar exclaims, looking around.

"Ah! It's him! I was able to tell by his voice! He's the fifth survivor! During the Final Selection, he was the first to rush up the mountain! And he came down the mountain before anyone else! Mr. Impatient!" Zenitsu explains to himself.

Then the boar turned his attention to the box Nezuko kept there for protection.

"Hahahaha! Found it!" He yelled.

He runs towards the box with his jagged twin blades.

"Urah!" He cries, stabbing the box, impaling whatever was inside.

"Mmmhm!" The box cried.

"Cut it out!" Zenitsu runs over and leaps towards he box and hugs it in protection while blocking the sun from the tiny hole the boar pierced.

"Ah... Who the hell are you?! Get out the hell out of my way!" The boar yells.

"I'm Zenitsu Agatsuma! I'm with the Demon Slayer Corps, like you!" Zenitsu screams.

"Huh? Demon Slayer Corps? Then I shouldn't have to tell you! We gotta get rid of that thing! Now get the hell out of my way!" The boar commands.

"I'm not moving! This is Nezuko's!" Zenitsu retaliates.

"Don't argue with me! In that case, I'm going to defeat her and the box altogether!" The boar yells.

He points one of his blades centimeters before Zenitsu's neck. Zenitsu would usually scream and run away, but he forced himself not to. He wanted Nezuko to know he was a friend.

"I said move it!" The boar commands.

"Ngh..." Zenitsu whimpers, not moving an inch, despite the sword at his neck.

"Why, you..." The boar drops his voice.

"Inside this box... Inside this box is something I'm not letting you touch! It's something precious to Nezuko!" Zenitsu argues.

"Oh, hey, come on! What are you talking about?! There's a demon inside that box! Don't you get that?!" The boar yelled angrily.

"I've known that from the start!" Zenitsu admits, 'I knew she was traveling with a demon. Because the sounds demons make aren't anything like a human's. Even though Nezuko's sound is cold-hearted and impolite, there's a secret side of complete kindness to her, that side makes me want to cry. All living creatures constantly give off sounds. The world is full of all of these sounds spilling out. Breathing, heartbeats, the sound of blood circulating... by listening closely, I can tell what somebody is thinking. But I've been deceived by others time and time again. I've always believed in whomever I wanted to believe in. Nezuko, despite being a Demon Hunter, is traveling with a demon. But I'm sure she has a reason for that. And it's probably a reason I can accept! I can believe that!'

"I..." Zenitsu mutters.

"Huh?" The boar asks.

"...I'm going to ask Nezuko directly myself! So you... can just back off!" Zenitsu yells.

The boar man starts to kick Zenitsu multiple times.

"Gah!" Zenitsu groans.

"Urgh!" He yells.

After multiple kicks, Zenitsu let's go of the box and is knocked to the ground. The boar turns to the box, but before he kills the demon inhabiting it, Zenitsu tackles him to the ground swiftly.

"Grrr... Gah!" The boar growls.

"Ngh...!" Zenitsu tries to shift all of his weight onto Inosuke.

"Let me go, dammit! Urgh!" The boar yells, throwing Zenitsu to the side.

"Agh!" Zenitsu groans.

"You're so annoying! Ngh... Gah!" The boar yells.

He charges for the box, but Zenitsu grips his ankle tightly, tripping him.

"You aren't laying a finger on that!" Zenitsu yells.

"Urah!!" The boar growls.

The boar kicks Zenitsu, but Zenitsu withstands it with ease.

"Ngh... That's something... precious to Nezuko!" Zenitsu exclaims.

He grabs Zenitsu's haori and throws him to the side.

"Grah!" He yells.

Zenitsu scurries to the box to protect it.

"Ugh... Ngh! You aren't touching it until she gets back!" Zenitsu exclaims

"Damn you! Take this!" The boar growls.

He starts kicking Zenitsu's face, making his nose bleed and bruising his eyelid after many kicks.

"Gah! Urgh!" Zenitsu groans.

"Hahahah! Urgh!" The boar kicks him repeatedly.

"Ugh...!"

"Ngh!"

"Gah!"

"Grrr!"

"Ngh...!"

He draws his twin blades.

"Move it!" The boar commands.

"I won't!" Zenitsu refuses.

At this point, Nezuko, Teruko, and Kiyoshi emerge from the mansion.

"Take this!" The boar laughs.

"Ngh.." Zenitsu groans.

"Move it!"

"Ugh..."

"Take this!"

"Ngh..."

"Draw your sword and fight me! Spineless bastard!" He commands.

"Ah... Nezuko gasps, seeing Tanjiro's box in Zenitsu's arms.

She turns to see Shoichi hiding in the trees, crying.

"Nezuko... I protected it... ugh... because you said this was more... urgh... important than your own life..." Zenitsu mutters.

"After all that bluster, you won't even draw your sword, you dumbass! If you're a Demon Hunter, let's see you fight!" The boar roars.

He knocks Zenitsu to the ground.

"Haha!" He chuckles.

"Gah..!" Zenitsu realized the box wasn't in his arms.

"Ah!" Nezuko gasps.

"If you won't fight, get the hell out of my way!" The boar stomps on Zenitsu.

"Take that!" The boar cackles.

"Gah!" Zenitsu cried, the pain went over his limits.

"Ngh!"

"Urgh!"

"Ngh!"

"Ugh.."

"Urah!"

"Ugh...."

"Move it!"

"Ngh!"

"Grr!"

"Ngh!"

"Urgh!"

"Grrr..." Nezuko growls, balling her fists.

After a few more kicks, the boar announces, "enough! If you won't get out of my way, I'll just have to skewer you along with that box!"

"Gah!" Zenitsu gasps.

"Knock it off, bastard!" Nezuko hollers.

"Huh?" He turns to Nezuko.

"Ugh..." Zenitsu holds his eye lightly.

Nezuko charges toward him.

"Ngh!" Kiyoshi and Teruko gasp.

"Knock it off!!! Urahhh!!!" Nezuko shouts.