Gyutaro -- an even stronger demon than Daki, and her older brother -- just came out of Daki's body and attacked Tengen and Goku. The demon threw his tickles outside the house.
Tanjiro, from outside the house, with Nezuko still in his arms, noticed the weapons.
(Another demon...?) He thought. Fortunately, the boy heard a voice.
"Hey, Monjiro!"
"Inosuke!" exclaimed Tanjiro.
"We're here to help the boss!" said Inosuke.
"Zenitsu, are you asleep?" asked Tanjiro.
"Yeah, he is, but this is a good thing!" replied Inosuke.
"Yeah, it really is..." said Tanjiro.
Meanwhile, inside the house, Tengen and Goku were side by side, both had their swords in their hands.
(How does this demon attack...?) wondered Goku. Suddenly, Gyutaro's weapons returned to him.
"Why did you throw them?" asked Tengen.
"It was an attack, but the tall guy dodged..." replied Gyutaro. "How envious I am of both of you... You're handsome, tall, all things that I surely don't possess..."
"Blood Demon Art: Flying Blood Sickles!"
(There are too many of them... We can't handle them while protecting people...) realized Tengen. Thus, the Sound Hashira threw three small bombs on the floor, which exploded shortly after.
Goku and Tengen dropped to the first floor.
"Are you ready, Goku-kun?" asked the Hashira.
"Of course I'm ready, Tengen!" replied the boy.
"Run! Find a place to hide!" exclaimed Tengen, talking to the only two people who remained there. They nodded and left instantly.
"You're not getting away!" exclaimed Gyutaro, from the floor above. "Bend. Flying Blood Sickles."
The slashes came back to Tengen and Goku, who kept slashing them, covering each other's backs.
"Tengen! I think I understood!" exclaimed Gku, while cutting the blood sickles.
"Understood what, Goku-kun?" asked Tengen.
"I think that if we want to kill them... We have to behead them at the same time!" said Goku. "Think about it: Gyutaro got outside Daki's body; this means they might share the same body, even if they're two different beings. So, if we decapitate one, it won't work. We have to behead them at the same time."
Tengen, listening, nodded. "Fine! If what you said is true, then let's just do it!"
Tengen threw other bombs on the floor above, aimed at Daki and Gyutaro. The house exploded.
Goku panted, still holding his katana in his hands. "I think this is not gonna be a walk in the party..."
Suddenly, a bubble of sashes appeared, and as it opened, it revealed the two demons.
"You got it right, Yoriichi's son," said Gyutaro. "We're two different beings, but in a certain sense, we're the same person... You can't kill just one of us, you have to kill both!"
Elsewhere, Tanjiro was holding the sleeping Nezuko in his arms to put her back in her box.
(I have to thank Goku... Yes, he headbutted Nezuko... But I don't think there was any other way to calm her down...) He thought as he arrived at the place where he left the box. "Now sleep tight, Nezuko... This time, I'm gonna fight until the very end!"
Goku was alongside Tengen, with his katana in hand.
"You really piss me off... You're good-looking, you have three wives, and..." said Gyutaro.
"Hey! Shut up! You already said that like three or four times!" shouted Goku. "We understand, we're handsome, you're shit. It happens, you know? Especially because you're a demon!"
"At least make me finish talking!" exclaimed Gyutaro.
"There's no way!" replied Goku.
"Goku-kun's right, demon one and demon two! Let's talk, not fight!" said Tengen.
"I guess you both are chosen talent, aren't you?" said Gyutaro.
"Talent? Don't make us laugh," said Tengen. "Both Goku-kun and I obtained what we had because we trained hard. If we give you the impression of being talented, you're wrong, you malnourished demon..."
"You may be centuries old, but if you've stayed shut up inside a place like this... I guess you can't help but be ignorant of the real world," said Goku. "So, don't call us 'talented'! Do you even know how many lives slipped through our fingers, even just today?"
(That's right... I can't be like Kyojuro or my father.)
"Very well, but what if I tell you my sickles are drenched with deadly poison?" laughed Gyutaro. "In a while, you'll both die at this rate!"
"Bullshit! I'm a demon, so I can resist it!" exclaimed Goku, pointing at himself.
"And I'm a trained shinobi who can resist almost every type of poison!" said Tengen.
"Don't give us that crap! Shinobi don't exist since the Edo Period!" said Daki.
"Shut up. The shinobi exist," said Tengen. "I had nine brothers and sisters. Seven of them died by the time I was fifteen. After that, my father forced us to submit to brutal training, and the only survivor was my little brother, who was two years younger than me. He was exactly like my father, and I didn't want to become like him!"
(At least, you had a family, Tengen... I don't even know how it feels to be loved by a father or a mother...) thought Goku inside of him, tightening the grip on his sword.
"The poison is affecting you, and saying the opposite is just bravado!" exclaimed Gyutaro.
"Listen: if I kill you, will the poison disappear?" asked Goku.
"Nope," said Gyutaro.
"Fine. Let's check, then," said Goku, dashing towards Gyutaro, attacking him. Tengen arrived to help, kicking Daki away.
"How dare you kick my sister?" yelled Gyutaro.
"I'm your opponent, dumbass!" exclaimed Goku, attacking Gyutaro.
"Stay back!" yelled Daki, throwing her sashes at Goku. But Tengen threw another of his bombs, which exploded on contact with Daki's sashes.
"Good teamwork, bro!" exclaimed Goku.
"Very flashy!" exclaimed Tengen. In the blink of an eye, Goku aimed at Gyutaro's neck, but the demon dodged.
"Damn! I missed the occasion to finish this one off!" exclaimed the boy.
"He beheaded me again! You bastard!" shouted Daki, reattaching her head.
"Don't worry, Daki-chan! They're gonna die a slow and painful death!" exclaimed Gyutaro.
(Even if I try to deny it, it's true... His poison is affecting my body... Fortunately, my demonic cells allow me to restrain the effect and the mortality...) thought Goku.
Suddenly, the boy heard a voice. "Do you need help, boss? Don't worry, Inosuke-dono is here to help his only superior!"
"Heh, thanks, Inosuke-kun..." Goku whispered, noticing the asleep but moving Zenitsu. From the other side of the house, Tanjiro arrived.
"I'm here," he said.
"You too, Tanjiro-kun... Thank God..." whispered Goku. (I'm tired and poisoned, but maybe, with these three by my side, we can win...)
Chapter 25 - End