Demon Slayer AU

By: FunahoMisaki

(A/N: I own nothing and it was just a little blurb that hit me so I had to write it. Maybe a bit OOC.)

"No stop! Don't hurt them!" Tanjiro was frantic as he was held down by Obanai when Sanemi stabbed through the box, causing there to be a muffled cry to be heard.

Then Sanemi jumped into the shaded tatami room and the door of the box opened. There was a loud crying like that of a child heard from the box while Nezuko emerged looking pissed.

"Wha-" Everyone except for two people were stunned to hear the crying child. In a flash those two people moved while Giyu was shocked but still got Obanai off of Tanjiro.

"Get away from her!" Tanjiro roared as he dashed forward and grabbed Sanemi, throwing the man away from the box and indeed out into the yard into the other Hashira.

"Shh. It's okay Kanae. It's okay." Shinobu was at the box's side in a flash, lifting up the crying toddler inside and immediately rocking her.

"You've gotten so big since I last saw you. Shh. It's okay baby. I'm here. I'm here." Shinobu assured the child as she rocked the crying baby with ease as if she had done so a million times before.

"Is she alright? How badly did he hurt her?" Tanjiro asked fretting over Shinobu and especially the toddler in her arms while Nezuko began to gently rub and pat the toddlers head.

"She's fine. It seems the blood belongs to Nezuko-chan. She was probably scared to see her aunt be stabbed through. Hush little princess. It's alright. It's alright." Shinobu soothed the child who slowly stopped crying and just sniffled tearfully.

"Kochou-san?" Rengoku asked raising an eyebrow at Shinobu who glanced at them and protectively held the toddler tighter.

"Remember four years ago when I was off duty for an entire year? That's when my husband and I were expecting our child. Our little princess, Kamado Kanae. Kanae-chan, say hello to the rest of the Hashira and Oyakata-sama." Shinobu said and the little girl in her arms glanced at the stunned Pillars, who all tensed a bit when they noticed her slit demon eyes, before she waved shyly and hid her face back into her mothers shoulder.

"But…But…" Giyu gaped as he looked between Tanjiro and Shinobu.

"I'm nineteen you know. Shinobu and I have been married for five years now. Ever since I was fourteen and she was sixteen. The only reason I still lived with my mom and siblings is because she had to work a lot of the time so I needed help with Kanae-chan. Plus since my dad died I took over providing for my family." Tanjiro said and he had an arm around Shinobu while his other hand was on Kanae's back as she nuzzled into her mother.

"So you were traveling with your demon sister and your demon daughter?" Tengen asked and he seemed a lot more tolerant of Tanjiro keeping his daughter alive as a demon.

"Of course." Tanjiro said and he smiled gently down at the black haired toddler in his wife's arms.

"A good parent would do anything to protect their child." Kagaya said knowingly as he laid a hand on his daughters head as she sat next to him staring curiously at the little girl being held by her mother.

"Tch. The only good demon is a dead demon. You could always have another kid." Sanemi said derisively as he glared at Shinobu and Tanjiro who both glared darkly at him while Nezuko growled a little bit.

"You come near my daughter Shinazugawa-san and I'll make you slowly drown in a pool of your own blood while your body feels like it's being melted from the inside out." Shinobu hissed as she adjusted her daughter so that she could have a hand on her sword as well just in case.

"Try to lay a finger on my daughter. I dare you." Tanjiro growled out sounding like a demon himself although he made no move to get his sword or even touch it. Instead his hands were clenched into fists as he took them away from his family and smoothly stepped in front of them while taking a deep breath.

"Why you little-" Sanemi lunged at Tanjiro who slammed his fists together and then breathed fire out of his mouth. More than one of the Hashira yelped or jumped back in alarm, Sanemi quickly dodging to the side before Nezuko's box went sailing through the air and slammed into him. Knocking him out of the air and into the ground dazed.

"I thought you used the Water Breathing style?" Kanroji asked staring at Tanjiro in disbelief.

"I'm formally trained in the Water Style! My dad taught me how to use Fire while teaching me the dance we do every first of the year! We danced from dusk to dawn to ask the gods for good fortune and to not get burned since we worked with fire and I learned a few breathing techniques from dad for that…and of course I learned some from watching Shinobu. I just ended up making a few new techniques after being formally trained by Urokodaki-sensei." Tanjiro said with a smirk as he stared at the stunned Hashira.

"I bet Kochou-san enjoys that you know some flamboyant breathing techniques. I know my wives do." Tengen said smirking and Shinobu went bright red while Tanjiro grinned slightly back at the Sound Hashira.

"Let's just say it's not a coincidence she got pregnant within less than two months of our marriage." Tanjiro said and Shinobu dug her elbow into her husbands ribs while he kissed her head and then went to fetch back Nezuko's box.

"Nezuko-chan. Kanae. I need you two to get back in your box okay? As soon as we're somewhere away from the sun or night falls I'll let you both back out. I promise." Tanjiro said and Nezuko nodded slightly, climbing into her box and holding her arms out to take her niece who whimpered but Shinobu kissed her head and set her back into the box.

"Don't worry baby girl. Mama will be there too. She's missed her little girl for the last two years after all." Shinobu assured her daughter before she closed the box and handed it to her husband who immediately put it back onto his back.

"Sorry for the intrusion sir." Tanjiro and Shinobu both bowed in apology to Kagaya who merely waved it off.

"Go to medical dear. I'll be along shortly." Shinobu said kissing Tanjiro's cheek while he nodded and gave her a small kiss back before kokuchi members showed up to take him to the Butterfly Estate.

"Yeah I'm sure if you're there and you ask nice then your wife might put on a very flamboyant nurse outfit for you." Tengen said with a grin and Tanjiro returned it while Shinobu's face flamed red again.

"Nurse? She's a whole doctor." Tanjiro said with a grin and Shinobu buried her face in her hands while Kagaya hummed a bit and covered his daughters ears.

"Personally a priestess is better but that's just my opinion." Kagaya said and Giyu snorted slightly in amusement while the other Hashiras either gaped in disbelief or, in Shinobu's case, were so bright red you could cook on their faces while emitting a whine noise.

"I'm not listening to any of this anymore or talking about this." Shinobu said her face bright red and Tengen laughed as he slapped her on the back.

"Aw relax a bit Kochou-san, sorry your last name is a very flamboyant Kamado now isn't it? Either way I'm sure my wives would know where you can find a bedroom version of a flamboyant kunoichi outfit if you want one. I'll ask them to come and help you acquir-"

"I already have one." Shinobu blurted out just to get him to stop talking.

"Good on you. Doctor? Nurse? Priestess? My wives are very flamboyant about dressing up for me and can help you." Tengen asked grinning.

"I have plenty of outfits thank you. Please stop talking now. Kanroji-san how much would it cost me to pay you to smack Uzui-san if he offers anymore 'help' or outfit suggestions?" Shinobu asked the other female Hashira who laughed a bit.

"The story of how you and Tanjiro-san met and fell in love!"

"Deal!"