"Take care, brother."

Takeo says weakly as he bids Tanjjro farewell from his futon, Meanwhile, Hanako comes to his Tanjiro as she said with a cute voice.

"Be safe now big brother; bring back something delicious to snack on."

"Yes... Yes... I bring back Silvineres for all of you."

Tanjiro responded with a kind smile; as his gentle hands frolicked through Hanako's hair, as he was giving her a head pat.

Finally, Nezuko began to approach Tanjiro with a smile on her face, in her hand was a bento wrapped in a blue cloth, and she gave it to Tanjiro and said.

"It's not much, but it's enough to keep you going."

"Thanks a lot, Nezuko; watch the fort for me while im gone. Also, check on the charcoal for me in the evening. I will only be gone for an overnight. I will most likely be back before sunrise tomorrow morning."

Commented Tanjiro as he inform Nezuko of his plans.

"Don't worry, I will make sure everything runs smoothly on our end while you're gone."

Nezuko replied with a smile on her face.

"Haha. Good. Good, well then I will be going now; take care, you guys, I will see you all later."

"Bye-bye Big Brother!"

"See you later brother Tanjiro."

"Take care Tanjiro."

Tanjiro smiles one last time before he faces the mountain exit; from there he grabs his basket of coal, along with his old axe, and began to run toward his next destination, which was Shirakawa village, from his home which was here at Mt. Kumotors at least 112 Km away from here, that was at least 69 miles away from here.

"At my full speed with no breathing, I can probably reach there in three minutes, with breathing forty seconds give or take; but then and again the last time I ran that fast I caused a lot of damage, and I end up hurting a lot of people in the process; so for this journey, I will run at 3/10 of my regular speed, that should be enough to reach there in about 12-20 minutes."

With his mind made up Tanjiro began to run toward Shirakawa to sell his coal to the locals. He was sure he could get his product to sell seeing that it was winter.

However unknown to young Kamado, this journey which was originally meant to be nothing but a business trip, would be the beginning of a rather odd but beautiful passive-aggressive relationship.

They say the Monarch butterfly is Poisonous to those that eat it; talk about passive-aggressive, it's considered a beautiful middle finger with wings; however, they are heavily dependent on the sun's rays, what happens when a Monarch meets its much-needed sunshine?

[? Pov]

The sound of heavy metal speeding on rails could be heard.

Of course, this was the sound of the trains speeding on the railroads.

However, the train wasn't important, instead, it was a certain individual who was looking through the windows of the train enjoying the beautiful scenery.

The person in question was a beautiful, petite young woman with a small frame, she has black hair with purple highlighted tips tied into a fashionable but simple yakai-maki bun using a butterfly-shaped pin. She has large deep purple eyes with no visible pupils and despite how creepy that sounds she maintains an innocent look on her face.

Attire wise she wears the standard Demon Slayer uniform and dons it beautifully despite its simplicity, although it does consist of minor alterations such as a dark purple straight-lined jacket, and hakama pants tucked into a butterfly patterned fabric around her lower legs that match her unique-looking haori.

Yes her haori was white in color, but the initial design was modeled after a butterfly wing pattern, as it when mimics the appearance of one when she moves around, and the haori itself fades into turquoise and then pink color on her sleeves as well, as the base of the dress and her legs. Her sleeves are cuffed with a black and white dotted trim similar to an insect design. Meanwhile, the outfit is completed by white sandals with purple strands and a white belt that holds her uniquely crafted sword that resembles a stinger.

This was of course of none other than one of the Demon Slayer elite warriors.

The Insects Hashira: Shinobu Kocho.

She is 18 years old, and her favorite thing to do is punish and tort...*cough* *cough* I mean make friends with Demons

She was heading to the farm village Shirakawa; albeit not on a mission to kill our to hunt Demons; no this was her personal request, as she ask for a day off, something she hardly does if never.

The reason why she was going to Shirakawa was that village had a certain ancient plant that was from the same family of the Wisteria flower which she uses to fight Demons with. This flower however was at least 7000× better in both rarity and potency, it was called "Luna Aconite" a flower that blooms once every six hundred years around this time, and it grew at only one spot.

It was so rare, that not even the villager are aware of its existence; however Shinobu ancestors left a tome explaining all the rare flowers in the world, albeit she was lucky that she was born in this Era when this legendary flower bloomed.

Normally this flower had the potential to one-shot the Demon King or so she believes, however, she had a better idea; she was going to weaponize her body and turn it into a living walking poison, after all, she was a scientist and a doctor.

Albeit there was one problem the Poison was also lethal to humans as well.

But she didn't have time to think, because she felt the train beginning to stop. At the same, the conductor announces on the PA system.

"We have reached Shirakawa."

At these words, Shinobu smile as she said.

"Ara ara, Gyomei was right indeed; good things do happen to those who wait."

To be continued

Next Time: The Red String of Fate