PROLOGUE

After the Mt. Natagumo event, the Demon Slayers were resting at the HQ peacefully. Then suddenly, a blinding light flashes on them, teleport them into a room with a big screen on it and cinema chairs in front of it. The audience consists of Tanjiro's group, Kanao, Genya, Aoi, the Hashiras, Oyakata's families, and himself.

Tanjiro is the first one to spoke: "What is happening here?"

"I don't know, but I don't like this." Giyuu said as he ready his katana.

Inosuke: "Where are we?!"

Uzui: "What is this place?!"

"Aaaaah! Is this somekind of Blood Demon Art or something?! Nezuko help me!" Zenitsu yelled as he hugs Nezuko

Oyakata: "My children. Please calm down, I sure we will get answer from it."

"You right, Ubuyashiki-san. I will be the one to answer it." A voice sounds like a woman said as they turn around and saw a blonde woman wearing peasant clothes as she smiles and waves her hand. "Greeting peoples."

'This woman, her scent is calm and kindness yet it superior and have authority.' Tanjiro thought.

Sanemi draws his sword as he yelled: " Who the hell are you?! And what is this place?!"

The woman just simply quiet and snap her finger, making the Slayer's sword disappear as she said: "I would appreciate and gladly answer if someone don't have to be rude at me."

Kanroji gasp: "Oh my we sorry ok? Let me try Sanemi-san." She steps forward as she breathes in and out to calm down as she said: "Who are you, miss?"

"I am the Bad Wolf." The woman introduces herself as the Bad Wolf. "I am an entity have the same level as a God, though you guys could see me as a Goddess."

Shinobu skeptically asks: "And why would a God like you doing this?"

Bad Wolf: "I have seeing your future." The people in the room gasp as she continues to said: "Your future is so sad and tragically, despite it a good ending but it make me want to cries and pity for you, the same goes for your past."

Tanjiro shock as he said: "What happens?" the Bad Wolf shakes her head as she cannot tell them yet, and he asks another one: "Then why did you brought us here?"

Bad Wolf: "I want to show you the journey from one of the legendary of a greatest warrior, a greatest healer and a greatest hero of all the universes. You peoples can learn a lot of things from him."

Obanai: "Then what about our world?"

Bad Wolf chuckle as she said: "Don't worry about it. You forgot that I'm a Goddess, so I have stop time on your world. As you guys have done watching him, you will be return to your world before the flashing light I have make. So what do you say? Do you want to watch his journey?"

Ubuyashiki: "We would love to watch his journey as well as for you my childrens. As the Bad Wolf have said, we can learn a lot of things from him."

All Hashiras: "Yes, Master."

Kyojuro excitement said: "I want to watch his journey, let see how he fight if he is a warrior."

Uzui: "I bet he must be flamboyant."

Inosuke: "And I want to fight him as well."

Bad Wolf: "Before we watch this, I would like to invite special peoples to watch." She said as she opens a portal and drops Tamayo and Yushiro. At first, they were confused, but as they heard Tanjiro's explanation. And of course, Kagaya told his children don't touch them. Despite they are demons, but they're good people as well. "I would like to make an adjustment."

As she said, they notice there's something change. The Demon Slayers shock to see Ubuyashiki's diseases suddenly cure, Gyomei can see. And Tamayo, Yushiro, Nezuko have returned to humans to make Tanjiro and Zenitsu happy for it, and they thank Bad Wolf. "And since I'm a God so I can bring some peoples you know from the afterlife."

And suddenly, the spirits of Kanae, Sabito, and Makomo appear in the room make Shinobu, Kanao, Giyuu, and Tanjiro happily see them. "But since this is a barrier between the living and the dead so everything would return to normal as you guys will return to your world."

Tanjiro: "Thank you very much, Bad Wolf. For have given us a chance to meet them as well."

Kanae: "My little sisters. How are you guys?"

Shinobu happily cries: "We're good, thank you very much for have asking. We missed you so much."

Kanao: "We missed you so much, Master."

Giyuu: "I missed you guys so much." Sabito and Makomo hug Giyuu as they were happy to see him.

While this was happening, the rest of the people are happy to see them reunite with the lost ones, especially for Sanemi since he secretly has a crush on Kanae.

And then Bad Wolf summons a man in his late twenties wearing glasses. He is wearing a white shirt with a black tie on his collar, dark pants, a dark-brown trench leather overcoat, and a brown fedora hat.

And he was eating noodles as he asks: "What's happening? And you, Bad Wolf, why did you interrupt my lunch?"

Bad Wolf chuckle as she said: "Everyones, I introduce you this man would be the host for you. If you have any questions, just asking him but there some questions he cannot answer it, ok?" Everyone nods their head as she turns to the man, said. "Now you have a work to be here. Are you sure you can handle it?"

The man gives her a thumbs-up as he said: "Well, since there's nothing to do back there so why not, but who we are watching?" Bad Wolf whispers through his ears as he understands said. "Ok. I know what to do here."

He turns his head to the crowd and said: "Alright peoples, back to your seat and we will watch this man's journey. You can go now Bad Wolf." And Bad Wolf left the cinema.

Muchiro: "This chair is so comfy! What is this made of?"

The man: "Cotton my dear fellow. Now, does anyone have anymore questions to ask me?"

Tamayo raises her hand, asks: "What's your name?"

"My name is the Historian." The man is known as the Historian as everyone said: Who.

"Just the Historian. No need to ask about this."

Shinobu asks: "Then who are we watching? And what does he look like?"

The Historian: "Well, you will find out sooner and about the man who we will going to watch. He is like you, Giyuu, Kanae and Tanjiro." The persons whose names are mention are shocking to hear a man like them."Let's get started shall we? Oh and before you ask. The journey of the man started from the 20th to 21st century as he first time arrive on your home in 1963. But this episode will start in the 21st century, specially 2006, in 92 years from yours. Where demons no longer roam on Earth anymore." The audience is shocked to hear and learn that they have won and Earth is peaceful. "Now, let get started, shall we?"

And everyone said yes as they were excited to see the future and the journey of the mysterious man.