A/N: This story was inspired by InvertedPhantasmagoria Kimetsu no Yaiba: Pet AU series of one-shots. I liked the idea of demons being pets so I decided to make my own story with my own twist about them.

A/N: Edited 05/05/2023 

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You have been doing your research, reading books, going to libraries, reading archives everything, and anything you can do to learn about demons. Some people might call you obsessed and, maybe you were. Maybe you weren't. You found them fascinating. They all looked like people- later on, you found out somewhere down the line they were humans who got turned- however, no one would believe that. You believed it though. You found out there are illegal fight rings, really bad people who perform experiments, use demons for their own sick sexual gratifications no matter the age, verbal abuse, beat them, bathe them outside, feed them rotten food, and keep them in wet dark places on cement. That was how most of them were treated. Fortunately, the lucky ones got saved, rehabilitated, and put into good, reputable homes. You were blessed to know that not all humans were evil. 

"You're focusing on that demon stuff again, huh." You turned to Avery who was sitting across from you. They were doing homework for one of their professors. You did not miss being in college. 

"Yeah, it's really intriguing to me you know this. They deserve to be treated normally. They're not even treated as pets, which in itself is horrible in my opinion, but some of the ones I read and see for myself. They're treated like the shit you stepped in." Avery was one of the few people you can confidently say is a friend and is not bad. They would willingly take on a demon if needed. 

"I agree with your sentiment. I plan on adopting one or two, preferably siblings if possible once I graduate and I'm sort of situated." That was something they talked about often with you. When they were ready to adopt demons they always wanted siblings. Rare but, not impossible. People always like to split siblings or pit them against each other. It was horrible. However, they would treat them as a pet but, you felt they deserved to be treated as people. They don't eat humans this generation anymore. You cared less what demons hundreds of years ago did. Why did the demons of today's age have to suffer the consequences? Humans really do suck ass.

"Shit I need to get back to work." You saw the time and realized your lunch break was over and, you needed to head back to the clinic asap. You were a medical assistant with a phlebotomist and EKG technician certificate. You worked at the clinic a block away and your lunch break was over two minutes ago. You waved to your friend and hurried back to work. You passed by a couple of people talking about a new demon they got.

"I can't believe how easy it is to get one of those things. I'm going to keep this one in the basement locked up with the others." You tripped but, righted yourself turning to look the man in his face. Thank God for your photographic memory. You went back to work even though you were working on autopilot. That should be illegal right? For the rest of the day, you were thinking about what that man said. You had his face memorized. Why were they kept in cages? In basements? There were drugs to induce heat to make them more pliant and that disgusted you. Why was it so okay to treat them like shit? There had to be some laws for this city.

"Focus Y/N." It was the evening and you were going home from work with a lot on your mind. Maybe you can adopt one? Volunteer at a rehabilitation center for them? You needed a way to help...Maybe you can help in other ways? They weren't exactly legal but, who cares? People always wanted money and, you were good at doing research. You had bought a co-op and were currently working on buying a building... Your co-op was four bedrooms- a settlement from a car accident came a long way- and three of the rooms were empty. "I can have 3 demons here..." The only issue is finding three compatible ones. That would be hard to do. Your head hurt from thinking so you took a shower, heated up leftovers, and sat on your couch in front of the TV. You lived comfortably but, it was lonely. If you were being honest you always had the idea of having demons in the back of your mind. You wanted to be the reason why a few demons knew how it was to be treated fairly and to be unconditionally loved. You were in your musings watching TV when your phone rang. It was your boss. What does she want?

"Good evening Y/N. I'm sorry to have bothered you." You rolled your eyes but, it was whatever. You did like your job. "The clinic is going to be closed for about a couple of months- with pay weekly from the insurance company- due to renovations so I guess this is good news?" This was beyond unexpected but, you would gladly accept it. With pay? Hell yeah, this was a dream come true. 

"This is okay ma'am! I'm glad that we will still be getting paid while they finish reservations. Thank you for informing me and, I will see you when it's time to go back!" You both shared a couple more sentences before hanging up. This was perfect. A little too perfect but, you weren't going to look a gift horse in the mouth. 

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You had told the couple of friends you had and, your family about being off with pay showing the email your boss sent as proof as well as the phone log and they were happy for you. Now you spent the next couple of days catching up on sleep, deep cleaning your home, self-care, and filling your two deep freezers full of meat as well as your fridge freezer...

"I'm obsessed." You were going to get a demon today. That's it. It was 9 in the morning and you'd been up the past hour relaxing. Impulsively you decided today is the day you were going to get a demon and put your knowledge to the test. Of course, you didn't know where to look. You were about to do something silly and look online. No way they would be on something like offer up and eBay right? That's just damn stupid. As you started looking putting in your zip code you were horrified at the sheer amount of demons being sold for dirt cheap. All under a hundred dollars and it made your stomach curl.

"Eager to please"

"listens to everything and anything you say"

'only speaks when spoken to'

'broken, useless, ugly'

'scars, tired of it, no use' 

These were just a couple of the common descriptions used for the demons. No way in fucking hell. Oh my God, this was real. You decided to dive head-first into the pictures and you wanted to cry. Those collars were damn chains with spikes, spiked muzzles, and rags for clothes. They were so dirty. Each demon had pictures and they looked so miserable. One of the pictures caught your interest and it was three demons together. One had long dark purple hair with purple eyes, one had shaggy black hair with blue eyes and the third had blonde and brown hair with brown eyes. They all were in chains with muzzles looking as if they just finished crying. Poor things were in rags and you can see their ribs. 

"I'm coming. Oh my God, I'm getting you three." They tugged at your heartstrings and damn anyone that says you're too soft. They were a 5-minute drive so you took your 8-seater SUV and hauled ass. You were in sneakers, shorts, and a t-shirt but to hell with it. You had your bag that had all the cash, your house keys, and other stuff. In five minutes you pulled up to what looked like a nice house and a woman and man were sitting out front. No hesitation you walked up to the gate entering ignoring their noises of indignation.

"Who the hell are you?" You rolled your eyes at both of them only stopping once you were a couple of feet from them. 

"I'm here to buy the three demon women you have. I saw them on Craigslist. Let me see them." You weren't playing games as the three of you stared at each other. It was tense before the man smirked turning around and beckoning you to follow him. You stayed put.

"Follow me." You waited for the wife to go ahead first before following them a couple of feet behind. The three of you made it to the back where you saw a shed. No fucking way. You watched as he yanked the door open "Come on! Get the fuck up your new owner is here." You watched with growing horror as the three women came out. They were definitely young women. They were in fact very filthy, starved and so frightened. They smelled awful. They had chains and muzzles and spiked collars. Hell no. 

"Give me the keys to take that shit off of them and you'll get the money." You held the money in your hand watching as the woman dug keys out of her pocket handing them to you. "Here's the $100" It was $80 but, just in case they tried to pull a fast one. 

"They're worth more than that-" You frowned at the bastard who was trying to get over.

"Must I remind you your shit online said $80, you're lucky I gave you $100. Now fuck off. They are mine now whatever I choose to do is none of your damn business." You turned sideways so you can take the chains off the demons who were oddly quiet and, kept looking between you and the couple by you. After they cussed you they let you be which you were glad for. "I'm so glad they left. What assholes. Why the hell have they got chains and collars on you three like you're some kind of monster." Now you were just pissed, venting and talking. You carefully removed the tight chains from their ankles and wrists taking note of the swollen skin. The blue-eyed demon hissed before whimpering and flinching back. 

"S-s-sorry." You shushed her gently not understanding why she was apologizing.

"I'm not sure why you're saying sorry you did nothing wrong. These hurt and your skin is raw. I will take care of that if you want me to. Or maybe one of your friends here can do it." You were talking gently as you swiftly but, as gently as possible removed the muzzles, spiked collars, and the rest of the chains off them. You looked them over and they needed a bath and food. They needed to get out of the sunlight as well by the way they are squinting.

"S-s-sorry" This time the purple-eyed one said it because she was slowly trying to follow behind you. That won't be an issue. Without asking her permission you picked her up ignoring her squeal and flinching.

"I'm sorry for not asking for your permission but, I figured it would hurt your legs less. Can you two wait here for one second? I can't carry you all at one time, unfortunately." You glanced at the other two who seemed shocked and way out of their element. Right. You were treating them with some sort of kindness. The bar was below the ground, buried deep for them. You turned around hurrying to your car and placing purple eyes in the back seat. Closing the door you ran back grabbed the blue-eyed one and took her to the car and placed her next to purple eyes. Finally, you ran back and grabbed the last one bringing her to put her beside the other two. Taking a deep breath you got into the driving seat ignoring how you smelled and the dirt on you. 

"We...got car dirty." You turned around to look at all three of them with a gentle smile. 

"It's okay! I just have to clean the car later on." The rest of the ride was silent ignoring the way the three of them were staring at you. You were going to have to ask them for their names. You parked your car as close to the entrance of your apartment building as possible. Moving quickly you grabbed the first woman taking her inside before repeating the process with the other two. You locked your car and grabbed your things and luckily the four of you were right by the elevator. A lady had gotten off which you ignored in favor of making sure the three women got on right along with you. It was silent as you looked ahead ignoring the way they hadn't moved their eyes off of you.

"Wha..." The brown-eyed one made a noise before flinching staring at you fearfully. They all were so scared of being hurt it was absurd. You made it to your apartment entering the giant place. You made it a few feet before realizing the three women hadn't entered the apartment. You turned with a smile beckoning them in. 

"Come inside. It's okay. This is your guy's new home." They took a moment before edging inside enough for you to softly close the door. They were skittish as it was there was no need to make unnecessary noise. Once inside you watched as they held onto each other while looking around. "Hey." You called gently frowning sadly as all three jumped staring at you with wide scared eyes. "It's okay. I'm not going to hurt you. I just wanted to know your names. My name is Y/N L/N." You don't know how anyone can treat demons so cruelly. They were basically humans in a different font. 

"...whatever you want to call us." It was purple eyes as the other two nodded in agreement. You didn't like that. They were trying to please you and it was endearing but, it was coming from a place of fear not want.

"That's not what I want. I want to know your real names. I know you have one. Each of you. If it's okay with you guys I would like to know." You waited patiently for them to give you their names. You rocked side to side itching to get out of your shirt but, you needed names. 

"My name is Hinatsuru." Purple eyes said this and you smiled at her. 

"Makio..." She frowned but, she was scared. You graced her with a smile as well.

"Suma." The one hiding behind both of them said this. You grinned at all three of them bowing a bit and hearing their inhales of shock. You need to stop shocking them before they end up going into cardiac arrest.

"Thank you for telling me your names. Now would you guys like to take a bath? Or eat first?" You turned away to allow them to think. You knew this was a big shock to their system and, it was all hard for them to keep up with everything that was going on right now. You changed your shirt and pants and washed your arms and face before putting on new pajamas. You came back to see them still in the same spot. You really didn't want to choose for them.

"...Bath, please." You nodded at them proud that they came to a conclusion on their own.

"Sure, you guys can follow me." You walked feeling them come up behind you gasping when you opened the bathroom for them. You had a huge bathroom and the tub had a built-in jacuzzi. 

"We clean in here?" You turned at the incredulous tone that came from Suma. What did they mean by that? Where else were they supposed to have cleaned up? Oh shit.

"Yes, where else you're supposed to bathe?" You weren't being rude but, you wanted to know. The sinking feeling in your stomach told you, that you wouldn't like the answer.

"...Outside." Makio kept looking at the bathtub. Of course, they would be hosed down. Why the fuck not. That made your blood boil.

"Well, there will be no more outside baths. Only inside ones here. Would you like for me to leave you alone to bathe together or would you want help from me?" You turned to all three of them not sure if they would need help. They just confirmed that they never had a bath inside. That means they didn't know what soap, shampoo, conditioner, and body wash were. Dammit. 

"Help, please." You nodded your head going to fill up the water with warm water. You watched as the tub filled up putting in a strawberry-scented bubble bath. You turned around to see that they stripped and all were naked waiting for you to say something. 

"I think the water is warm enough. Come." You beckoned them helping them carefully ease into the tub. It was slow but, you had patience. Once they all were settled they seemed to melt as the water seeped into their bones. You smiled at how content to be with a simple bath. You had three rags, one for each of them, and poured body wash into each of them. "I'm going to wash you first Suma." 

"Okay..." She opened her eyes watching you as you carefully ran a rag across her body, her arms, hands, legs, feet, and back. She was confused. It didn't hurt, it wasn't cold. Why didn't it hurt? She watched as you rinsed out the rag and her body before sharing a look with Makio and Hinatsuru who were just as confused. 

"This is a bath?" Hinatsuru asked before slapping a hand over her mouth and staring at you with fear. You just turned to her with a small smile. 

"It's okay to ask questions. I will not be upset. To answer you, yes this is a bath. It can be nice, calming, and soothing. No pain." Once you finished with Suma. You went to Makio and then Hina with a repeat process. The water was filthy so you unplugged the tub watching all the dirt drain down. You chose to refill the tub ushering it to refill in your head. You watched the three girls shiver but, say nothing. You were going to wash their hair. Once the tub was refilled you grabbed the shampoo to show them. "I'm going to wash Suma's hair first with this. Hinatsuru, if you would watch me so you'll know how to wash Makio's hair." She nodded as she watched you intently wash Suma's hair. Suma's hair was tangled so you gently untangled it with water and shampoo massaging her scalp. She was tense but, relaxed when no pain registered. You washed her hair three times, rinsing before conditioning instructing Hiantsuru gently as she had started on Makio halfway through your demonstration. 

"Like this?..." She kept looking at you for approval as Makio seemed to be enjoying it. You nodded your head and she beamed. Once she was done, you washed her hair and, finally told them to get out. You handed each of the towels to them so they can dry off as you went to get clothes for them. You grabbed three shirts and three pajama pants and came back to see them grabbing their old rags and about to put them back on. 

"No, those are disgusting and going in the garbage. These are for you to put on now." You handed them each clothes grabbing the rags to throw out. You came back to the bathroom to see they had put the clothes on and, now all three of them were giving you such adoring looks it hurt. They were so happy, so genuinely grateful for just having a bath. It hurt. "Come, I'm going to feed you." They nodded in unison following you close behind like puppies. "You can go sit in the living room." You went to the kitchen grabbing three bowls and three small packs of raw beef. They can eat any kind of raw meat. You filled up the three bowls with the three packs of raw beef. You grabbed all three and carefully went to the living room to see all three were sitting on the floor nowhere near your furniture. 

"Owner...Y/N." Hinatsuru saying your name looked like it pained her. Hopefully, over time she would get used to calling you by your name. Maybe you can accept being called owner only in public. You're not sure yet. That idea made you upset.

"Here you guys go." You handed them each a bowl watching them drool and their fangs and sharp nails come out. They didn't move yet and, they were probably waiting for an okay from you. Who did this to them? "You guys can eat. It's okay, it's yours." You watched as they grabbed pieces of meat to eat and, you left them to their own devices while you went to set up one of the guest bedrooms. It was a Queen you're pretty sure the three of them would be fine on it. It had an empty dresser, a mirror, a TV, and two nightstands with half a bathroom. They should be okay. You went back out to see they licked the bowl and their fingers clean. You smiled grabbing the bowls and opting to feed them tomorrow. It's been a long time since they ate, if they ate more right now they'll get sick. 

"Thank you, owner." You smiled at Suma patting her head which made her whine leaning more into your touch. Of course, they would be touch-starved why wouldn't they? You gave head pats to Hinatsuru and Makio getting the same reaction. Sheesh, there was a lot to unpack here. That would be for another day. All of you needed some rest.

"You're welcome. Now, come let me show you where you guys can sleep and stay." You turned around not wanting to see how eager they all were. It was unnerving and, all you did was bathe and feed them.  Ah, man. You entered the bedroom ushering them inside "I'm sure the three of you wouldn't mind sharing the same space, right?" You turned to them, alarmed to see them crying. Was it too much? Did they want separate rooms? What did you do wrong?

"This is for us...?" You turned to Hinatsuru who was giving you a tearful hopeful look. That's right. They had never been inside anywhere before besides a shed. 

"The whole room is for you guys. There is a bathroom there for you guys to freshen up. Eventually, I will get you guys some toiletries and clothes but, for now, this is all I got." You really hope you were doing right by them. In the back of your head, you knew a lot of people would be highly upset by you being so kind to them. So what? They looked, acted, walked, and did everything like a human. Your heart just couldn't take it.

"....Thank you." You smiled at the way they were openly crying and, it was overwhelming. 

"You're very welcome. I will see you guys in the morning." The curtains were closed so no sunlight could get in. You closed the door silently before padding into the bathroom. You had to clean and think about everything that transpired today. 

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