Unbound ♰ Kny x Fem!Reader

𝐱. Can't Go Back, I'm Haunted

"Delicious!"

"Delicious!"

"Delicious!"

Zenitsu cast a wary glance at his friends, his eyes awkwardly flitting from them to the door and back. "Dya think we should uh, go tell him that we're here?"

The four Demon Slayers sat huddled behind a seat on the Mugen Train, having sheepishly arrived there a few minutes later than the designated time. From the compartment next to them came a man's voice, one that Y/N recognized to be Rengoku Kyojuro's, continuously complimenting whatever he was eating through almost robotic exclamations of 'delicious!' and 'umai!'.

The quartet had spent twenty minutes pondering whether they should just leave him be or alert him of their presence, but naturally, no one had enough confidence to casually stroll up to the formidable Hashira and announce something that they most likely already knew. They stayed put.

"Aw man, my legs still hurt from training," Tanjiro sighed, recalling the more-than-rigorous exercises Aoi had put them through, saying it would determine whether they died on the mission (everyone had a panic attack right there and then). Not one of the four wanted to face the prospect of death so early – especially not Y/N. "I barely got any sleep either."

"I didn't get ANY sleep yesterday!" Inosuke proclaimed, eagerly wanting to be better than whatever was previously said. "I literally heard the first chirp of the birds at exactly thirty-two-o'clock and seventy minutes. That's how long I was awake for."

"Inosuke, that's not– nevermind." Y/N sighed as she opened a window. Fresh nighttime breeze filled the room. "That's better. What's in that box, Tanjiro?" Her eyes latched onto a huge box upon her friend's back – too big to store bentos and necessities, yet too small to store a person. Or so she thought.

Tanjiro's eyes lit up. "Oh yes! Nezuko's in it!"

"A who now?" Y/N gaped.

"Nezuko?" Zenitsu yelled, any fear of meeting the Flame Hashira immediately distinguished.

Inosuke was halfway out the opened window by now, so he didn't hear any of that. Y/N sharply pulled him back by his haori.

Delicately, Tanjiro opened the lid of the box and the two peered into it's interior. Out came a young girl, probably around the age of twelve, holding a bamboo muzzle in her mouth. Her ombre hair fell in cascades down her shoulder and into the box, while her peachy pink eyes bore a striking resemblance to Tanjiro's.

She tilted her head slowly, examining Y/N and completely ignoring an overjoyed Zenitsu.

"This is my sister," Tanjiro proudly explained, beaming from ear to ear. "I think she'll like you."

And indeed she did. Nezuko struggled against the boundaries of her backpack-box for a second, but eventually managed to place a single foot on the floor, pat Y/N's head, and shrink back into the darkness of her box.

"Bye!" Y/N smiled, waving a goodbye as she disappeared out of sight. "She's adorable, Tanjiro! She's a demon, right? I recall one of the Hashira telling me about her. Okay, Zenitsu, stop looking at the box. She's not coming back out."

"She didn't even look at me!" Zenitsu wailed sadly, punching Inosuke (who was halfway out the window again, marveling at the speed of the train) on the back and nearly toppling him out of it.

Tanjiro shook his head. "Ah, he's been doing that since we met like a month ago. It's fine. I think it's the hormones. Leave him be."

"Umai!"

"Umai!"

"Delicious!"

"Alright," Y/N started, caving in. "We'll go tell Rengoku and these two can just stay behind."