On 6 A.M, October 17, 1947.
"Oh, alright! My name is Chikafusa Yamamoto. Nice to meet you, ummm… What's your name?"
"Well, my name is Ren Hajime," said the other kid.
"Hajime Ren? What a good name… But what's this place? I've never seen this one before," asked Chikafusa.
"We are in one of the mansions of the Demon Slayer Corps, the butterfly mansion of Aoi-Sama," said Ren.
But this butterfly mansion is different from what we've seen in anime. There is no Shinobu, no Kanao, and even its location has been changed. Now its mistress is Aoi Kanzaki.
During their conversation, Chikafusa becomes emotional and starts crying. He must be missing his family.
Ren tries to soothe him, "Chikafusa, I know it's horrible and tragic for a kid who lost his family in front of his eyes. I don't think you lost your family just because of that demon, but if I arrived earlier then I–"
Chikafusa stops him from saying, "Don't blame yourself, Hajime-San. It's not your fault. Instead, if you weren't there then I would have died. I am fine, thanks for your concern."
Ren gives a warm smile.
But Chikafusa is still confused about him. He thinks that he has seen Ren somewhere before, but dunno where.
"Now I am aware that you're Sumiyoshi, my best friend who lived long ago. No one gives me a vibe as you do, Sumiyoshi. Or I can say Chikafusa, or whatever. What a coincidence that I gave you my earrings some centuries ago, and it's returned to me. Thank you, Tanjiro Kamado or Chikafusa for keeping my earrings," thinks Ren in his mind.
They talked to each other for 30 minutes. But then,
A female Kakushi enters the room and says, "Excuse me, is Hajime Ren here? Oyakata-Sama ordered him to come to his residence."
Kakushis are the brigade of people who work as attendants to the Demon Slayer Corps.
"Yes, I am here. Let's go, Yamamoto-kun," says Ren in a calm voice.
Some minutes later, they arrived at Oyakata-Sama's residence. There were so many demon slayers along with hashiras. But the most fascinating thing for them is the stone hashira, he is over 7 feet 4 inches tall. (2 inches even taller than Gyomei Himejima, the former stone hashira)
Everyone bowed down to Oyakata-Sama.
The current Oyakata-Sama calls Ren Hajime's name and says to everyone, "My beloved children! Good morning, everyone. Welcome your new hashira, Hajime Ren."
Everyone starts talking about how only a 6-year-old kid became Hashira at this age. Why did they allow a kid to join the Demon Slayer Corps? They've never seen this kid before, and what kind of hashira is the kid?
They have so many questions revolving around their brains, but Oyakata-Sama understands the situation and says, "I know you've never seen this little boy before, but it's been only a previous night since he joined the corps. And he defeated a lower moon 6 on his first mission."
Everyone, including Hashiras, was stunned. They're thinking how could someone become a Hashira in just one night when it takes years to become one?
One of the demon slayers asks Ren about his breathing style. Ren agrees to show him his breathing style.
He picks up his nichirin sword which seems too big for him and starts swinging it.
SUN BREATHING 1ST FORM: DANCE
He performs sun breathing in front of everyone. Everyone seemed confused about his breathing style because they'd never seen this one. It seems somewhat similar to flame breathing but even the current flame Hashira, Senjuro Rengoku, refuses to claim it as flame breathing.
"What kind of breathing style is this?" asked everyone.
To answer their questions, someone comes and says, "This is indeed the sun breathing, the first breathing style."
That person is Zenitsu Agatsuma, Tanjiro's best friend. He is now a 48-year-old man but still more powerful than before.
Everyone started shouting like hell. "Are you kiddin' me? How the hell can a kid who can't even talk correctly and joined just last night perform sun breathing?" Everyone's reaction.
"That's real sun breathing. I remember when my friend used to perform sun breathing. But alas! He got killed during the fight with Kibutsuji Muzan," says Zenitsu with sadness.
"Oyakata-Sama, Agatsuma-Sama, I'm sorry but I can't become a Hashira. I never intended to become a hero, I just wanna live peacefully. I don't want any status, money or power. So please, don't give me such a respectful title. I don't deserve it," said Ren.
Everyone's talking about how Ren refused to become a Hashira. Kids don't understand about opportunities and are dumb.
"I'm proud of you, my child! You declined something that everyone desires. You're a pure soul," said Oyakata-Sama.
Seems like nobody wanna accept Ren's credibility. They can't digest the fact that a kid can have a demon slayer mark and the first breathing style.
Zenitsu carefully looks at Chikafusa and says, "You almost look like my friend, Tanjiro. And your friend has the same earrings Tajiro would wear. What's your name?"
Chikafusa replies, "My name is Chikafusa Yamamoto. Nice to meet you, Agatsuma-Sama."
After some time, everyone goes back to their work but the stone Hashira. He comes toward them and says, "Well done, you've done something which is even impossible for others including me. I couldn't even walk correctly at your age, and you've defeated a lower moon demon," said the stone Hashira with a very deep voice.
"Thank you, Fuji-Senpai. I'm glad you liked it," said Ren.
His name is Yamato Fuji, the current stone hashira.
The kids' reaction is like, "Oh my, how tall is this man." They're constantly looking at him.
"How did you become a hashira? You must be the strongest one here," asked Ren.
"Well, It's been only 3 months since I joined this corp. I became a Hashira one month ago when I defeated Lower Moon 2 in a bloody battle," said Yamato Fuji.
"Wow! That's great," said Chikafusa with excitement.
"Iwamoto-San, I am so gratified to see you after 400 years. You always fought against Nii-san and convinced him to make him a better person. Even in your previous birth, you fought Nii-san's demon form and almost defeated him. You're as soft-spoken as before, and now you can even see everything," thinks Ren in his mind.
The Stone Hashira, Yamato Fuji, is 7 '4 feet tall. His current age is 17. His height has already reached its peak. Yamato wears a black and white uniform typical of a Demon Slayer, with bandages over his shins resembling kyahan and white zōri with an olive green happi draped over his shoulders. His dress is almost the same as Gyomei Himejima's dress. But he has pupils in his eyes and can see everything.
"I wanna become a demon slayer too. I wanna save everyone," said Chikafusa.
"No, you can't. I'm impressed by your way of thinking but the legal age to join the corps is at least 12. Hajime Ren was able to join only by Oyakata-Sama's agreement," said Yamato.
"If this is the case, I'll wait and train until I turn 12," promised Chikafusa with confidence.
The Demon Slayer Corps' condition is critical. It's probably the worst time they've ever faced. After the Taisho Era, they lost all their strongest hashiras and the current hashiras aren't as good as the previous era's, excluding Yamato Fuji.
Zenitsu was a mischievous and crybaby character but ended up being wise and serious. He was traumatized by the death of his closest friends, Inosuke and Tanjiro. The Demon Slayer Corps was about to go extinct but somehow they managed to survive.
—------------------------------------------------------
At night, 9 P.M.
2 demons are running away from someone. It is the current Light Hashira.
They are running for their lives because they can't beat a hashira. They somehow escaped from his glance due to the darkness in the forest.
"Yagami, I already told you that this man is not normal," said the Lower Moon 3.
"Shut up, there's no time for talking. He is faster than us, he can catch us anytime," said the Lower Moon 1.
While running for their lives, they found a dark entity whose body was completely black with red-sparkling eyes. He is 5'10 feet tall and has a body structure like a humanoid but in a liquid and gaseous state.
"Oh my, Lord 3. Please help us!!! A hashira is coming towards us, he'll kill us," cried the lower moons.
"How pathetic. Are you telling me that a weakling mortal is trying to kill you? That man and Kokushibo-San would be sad to see you both. Kokushibo-San claimed that you're the strongest lower moon ever, Yagami, is this what the strongest lower moon looks like?" said the Upper Moon 3 with a calm and deep voice, like Kenjiro Tsuda VA.
"No no no… we did our best and fought him for 30 minutes straight. But we–"
"I don't need any excuse from you both. Where is the hashira? It would be fun to kill him. I hope you won't bore me, will ya?" asked the Upper Moon 3.
Immediately after he asked about the hashira, the hashira appeared in front of them.
"So you demons are hidden here, what a coward. And who is this other demon? Anyway, I'll kill all of you," said the hashira and ran towards the Upper Moon 3.
He is just some inches away from hitting the Upper Moon, but then the Upper Moon lifts his finger towards him and stops him in the air.
"Whhhaaattt???!!! Is he levitating?" said the lower moons.
He was stuck in the air because so many invisible hands were holding him. His eyes went into a dream and he couldn't move. After a few seconds, the Upper Moon decides to kill him.
BANG!!!
The hashira's entire body explodes, and his head and different body parts get separated. His intestines are destroyed.
"L… Lord Jigen, you're amazing," said the lower moons.
Jigen, the current Upper Moon 3 is one of the strongest demons that ever existed.
A large pentacle is formed around the hashira's body.
In the other scene, we see Ren Hajime training with Chikafusa. He seems worried about something.
"Hajime-san, is everything alright? You seem worried about something," asked Chikafusa to Ren.
Ren says, "Chikafusa, I don't know why… but I am feeling something bad has happened."