Dragon Rider Au? Idk Where To Go With It But Dragon Rider Au

Me scrolling past my own story I haven't updated in 2 years while on a 3am AO3 binge

This is how I picture Meant to be Shigaraki aside from the full body fur. Like the claws, tail, and ears are on point.

A/B/O AU WIP:

The general vibe for this one is Katsuki falling victim to his instincts and Shigaraki and Dabi taking full advantage of that. Since his omega has been neglected for so long it made him far more susceptible to manipulation than a typical omega would be.

The blue haired man was talking but he couldn't hear a word. He was hyperventilating, his heart was pounding in his ears. Terrified whimpers escaped him as his distressed smell was starting to leak from underneath the day old scent patch. Releasing a sickly sweet distinctly omega smell. The room goes dead silent as the revelation of his true classification is exposed. It was getting harder to breathe. His mind was racing coming up with scenarios each worse than the last. He knows what happens to kidnapped omegas, especially those with powerful quirks. He'll be claimed and mated against his will and used to breed pups until he can’t anymore.

“It's been a rough day for you, hasn't it puppy?” Dabi cooed as he scented the boy. The crying boy whined in his arms before going lax. ”Shh shh you're doing so well baby,” He purred as he got the boy drunk on soothing pheromones. He broke out into a smile when he received tiny almost soundless purrs in return.

“Mine,” Dabi growled possessively, tightening his hold on the small blond. It shouldn't be this easy for the boy to drop just due to pheromones. The ones he and his lover were dousing him in weren't even that strong. Clearly their puppy had been more neglected than they had assumed. 

“Ours,” Shigaraki confirmed before doing the same, covering the boy in his scent. 

“No! 'm a hero! I’m leavin’,” the boy shouted, setting off tiny crackling explosions from his palms. His heart stopped as he realized what he had done, the temperature of the room dropping as the mood plummets. He could smell anger coming from Daddy Shigaraki and disappointment from Papa Dabi. 

“Naughty puppy, do we need to bring back the restraints? Well do we?” 

Katsuki whined cursing his biology as his instincts screamed appease sire, appease dam, apologize, take punishment. He flopped over on Daddy’s Shigaraki’s lap, belly up and neck bared in submission. 

Just know I am absolutely fucking cooking with this new AU I'm writing. I won't say what it is but damn it's good.

Say, where's Eri in the New Days AU?

Oh yeah she'll come up later in the series. I don't know if any of you caught it but in Chain the Past Yaoyurozu actually blew up Overhaul's base when trying to prove herself worthy to Dabi. Since the war takes place after the Stain Arc the heroes never had a chance to investigate Overhaul. In this AU he was actually discovered because of his reluctance to bring Eri in for quirk counselling.

When child protective agents were investigating(In this AU cps are basically like spies they do all the investigating without the guardians notice.) they found out about the experiments and reported it. Eri was taken away and put into protective custody while Overhaul was publicly executed and his hideout destroyed with all his minions inside.

Puppy Love

Chapter 1 By: fairystar111

Rating: Gen

Fandom: Boku no Hero Academia

Summary:

Quirk: {Puppy love}: The user emits a pink ray from his hands. Once a target is hit they become the type of dog most suited to them. The quirk can only be undone by true love's kiss ie. platonic, friendship, or romantic. If the target manages to get a kiss from someone who truly loves them then they will transform back to human form. [Warning!]: If the quirk is not undone within a month, permanent canine characteristics will begin to accumulate on the target’s real body. If the quirk is not reversed within three months the target will lose their humanity, permanently becoming a dog. Or Shigaraki brings home a new pet

Characters: Midoriya Izuku, Shigaraki Tomura | Shimura Tenko

Tags: Animal Transformation, Dog Midoriya Izuku, Fluff and Angst, Kidnapping, Unintentional Kidnapping, Yandere, Yandere Shigaraki Tomura | Shimura Tenko, Obsessive Behavior, Possessive Behavior, Platonic Yandere, Platonic Kissing, Fluff, Body Horror, Protective Shigaraki Tomura | Shimura Tenko, Possessive Shigaraki Tomura | Shimura Tenko

The day had started off pretty normal for Izuku. He had woken up early Saturday morning to clean his dorm before going home for the weekend. He made it to his mother’s apartment uneventfully and they spent the morning together eating pancakes and watching cheesy soap operas. Then his mom had asked him to run an errand for her. All he had to do was pick up the ingredients for katsudon at their local market down a couple of blocks from their home. That was it. Now here he is stuck as a dog in a dirty alleyway.

He didn’t mean to get into trouble and be hit with the thief’s quirk, okay! But he wasn’t just going to stand there and let him get away! He’s a hero student; he can’t not help those in need. When he heard the kind old shop lady screaming out she was being robbed, he couldn’t help himself. His body moved on its own, and before he knew it, he was bolting out the door after the masked man. He managed to corner the man in an alleyway and was going to call the authorities. He didn’t expect to be hit with a strange sparkling pink ray of light and fall flat on his face.

Izuku screamed in agony as he felt his body shifting. Bones twisting and breaking, transforming into something much smaller. His face, nose, and mouth being crushed down and reformed until he couldn’t scream, only release high-pitched little whimpers. The last thing he felt was something popping out of him near his lower back, or what used to be his back. Then a voice from above spoke.

“Oh well, aren't you a cute one? I don’t doubt you’ll be able to charm anyone that comes across you.” The thief tapped the pup on the nose when he noticed him dozing off, tired from the strain of the transformation. “Hey, listen up! I’ll give you some advice since you seem like a promising young kid. The cure is love. Well, I gotta get out of here. Good luck with that!” with one last pet he left, leaving Izuku all alone. 

The boy managed to drag his new foreign body into a dirty ramen case near a dumpster. When he heard a distant voice call out, “Oh, and make sure you're out of that form within a month!” before passing out. 

===

It was dark and cold when he awoke. He tried to stand up, but his body felt odd, he was unbalanced and even his vision was off. It was the middle of the night, but he could still see clearly, albeit the colors around him looked muddy and dull. He looked down and yipped when he found paws in place of feet. W-what happened?

Then he remembered the thief from earlier had hit him with his quirk. What had the man said?

Something about love being able to undo it. What was that supposed to mean? Is he supposed to get someone to fall in love with him? But how? He’s a dog. And what then, is the person who loves him just supposed to make contact with him? Maybe pet him or...oh...oh no…this quirk can’t be so cliché that the cure is a kiss, could it? He’s lucky his face is covered in fur, or else he is certain he would be blushing a tomato red. 

Well, love doesn’t have to be romantic; it comes in many forms. He could just find his mom and ask her for a kiss on the forehead. Wait, he can't talk. He’ll just head back to UA and find Koda and then tell him to ask the teachers for help. But what would happen to him after a month? Why was that important enough for the thief to mention? Is the transformation going to be permanent if it's not reversed within a month's time?! 

The boy didn't notice, but his usual muttering was spilling out of him the whole time, but in dog form it sounded like the weak whimpering cries of a puppy. He had unknowingly attracted the attention of a certain white-haired villain who just so happened to be walking down the same alleyway.

Izuku felt the box being shifted upright, and he was knocked off his feet. He peered up to see what had moved his temporary home only to see Tomura Shigaraki peering down at him. He tried to scream, but what came out was more like a terrified yelp. He scrambled into the corner of the box, narrowly avoiding the deadly hands reaching for him.

“It's okay, little one; you don’t have to be afraid. I’m not going to hurt you.” He hears a gentle, scratchy voice coo. Is Shigaraki talking to him?! The same Tomura Shigaraki that held him hostage at the mall and spoke like a crazed lunatic. Why is he looking at him so softly? Oh right, he's a dog now. And judging by the height of the box around him, a very small one, likely a puppy.

 Huh, I guess even villains are weak to puppies. 

The box is lifted into the man’s arms, and suddenly Izuku is being carried somewhere. Izuku tries to growl or bark at the man to show his displeasure, but all that comes out are weak little cries. It seems his new body is quite underdeveloped. “Shh, shh, I know it's scary being all alone in such a big world when you are so so small. I'm going to take you somewhere safe.”

He feels the man walking for a bit before pausing. Izuku hears a brief whoosh sound, and then he is inside the League’s base. Or at least he thinks it is; all he can see is the ceiling. The walls of his box are too high for him to look over. He heard what must have been other League members greet Shigaraki. 

“Whaddya got there, boss?” He hears a deep, gravelly voice ask. 

“Uh…soup. I'm going to my room now; don't bother me.” The man said abruptly before hastily retreating with the rustling box in tow. 

“Aww man, I wanted some.” A feminine voice whined.

“That was clearly not ramen,” responded the first voice. 

“Yeah, no,” He heard another strange voice say before the door was shut and locked behind him. 

Shigaraki took him out of the box, grabbing him with all ten fingers. Izuku tensed, bracing for disintegration, yet nothing happened. Shigaraki simply placed him on his bed while he fiddled with his phone for a moment. 

Meanwhile Izuku took the chance to take in his new surroundings. Shigaraki’s bedroom was huge, with massive floor-length windows and a large balcony. The bed he was currently sitting on was unnecessarily large, piled high with plush pillows and blankets. An enormous TV hung on the wall with multiple gaming consoles connected to it, and he had an expensive-looking computer setup in the corner of the room. While the shelves on the walls were a little cluttered with manga and figurines, the room itself was fairly clean aside from a few empty energy drink cans and chip bags littering the desk. Nothing at all like he was expecting. 

Where had the League acquired the funds for this type of luxury? Their last hideout in Kamino had been a desolate ruin compared to this place. How did they gain this much power in such a short amount of time? This is a cause for concern; when he returns back to normal, he’ll report this change in status right away. If they were gaining followers powerful enough to sponsor this type of lifestyle. It could be detrimental to the hero's side if an all-out war were to—eep! His mumbling is cut short as he is picked up.

“Shh, shh, don’t cry little one, it’s alright, your food will be here soon. You must be so hungry.” He tried to struggle out of the villain's lap, but his pudgy little limbs were not strong enough to push him away. His body seems to be quite young; he can't move the same way he’d seen dogs running around in his neighborhood. 

There was a knock at the door, and he was put down as Shigaraki gathered what seemed to be multiple bags of pet supplies. He heard a faint, "You know, you could say thank you, asshole!” from the other side of the door as it was shut abruptly. The villain busied himself on the other side of the bed sorting through the bags and pulling out a can of formula and a tiny bottle. He read the instructions on the can and scooped a tiny bit of powder into the bottle before crossing the room and opening the door to what seemed to be a bathroom. 

He heard the faucet running and wondered for a moment why Shigaraki was making a bottle. It was only when the nipple was put up to his face that he realized it was supposed to be for him. “C’mon, what was all that crying earlier for? Go on, eat.” 

Well, he was hungry; Izuku hadn’t eaten since breakfast, so he hesitantly latched on to the tip of the bottle and sucked. He expected the formula to be gross, but the liquid was lukewarm and thick, tasting like sweet, creamy milk. Once he started drinking, he couldn't stop, his new instincts urging him to eat as fast as he could until he was full. 

“Good puppy.” Izuku felt his face flush as the villain praised him for simply eating, gently petting him as he encouraged him to drink more. 

“You're so small, you look like you've barely opened your eyes. Did your family abandon you? Were you all alone on the streets, crying for help and being ignored by every passerby? The world can be so cruel to those who do not fit the mold in society. If you have nothing to offer the world of heroes, they're happy to leave you alone to die on the streets…” The man trailed off into silence, eyes glazed, staring into nothing, petting him absentmindedly. There was something off in the man's tone, like what he was saying was sort of personal. He contemplated what could have made the man the villain he is today for a moment but found himself nodding off to the rhythmic petting and tummy full of warm milk. 

===

Izuku woke up to the sound of running water. He found himself lying on a towel on the side of a large sink. He straightened his paws in front of him and used all his strength to push himself up into a sitting position. He stared straight into the large mirror. To the left of him he saw Shigaraki running a bath in the large sink, and to the right he saw himself for the first time. He knew he had been changed into a dog. The thief had said so after all, but to see it with his own eyes was shocking. 

He was so small; from what he could tell, his body was about two months old. He had his same soft, curly hair and big green eyes. Though his fur was dark, almost black, it shone green in direct light. He had a white fluffy belly with a pink freckled nose and soft rosy paw pads. He was, to put it simply, adorable. He could see why even a villain like Shigaraki would want to ‘rescue’ him. 

Izuku watched the dangerous set of hands reaching for him in the mirror but didn't bother to dodge this time. Shigaraki has shown he has no hostility for Izuku in this form and that he has far better control of his quirk than he did in the USJ. He no longer needed five-point activation to access his quirk. Which is another change he’ll make sure to report to the heroes. 

“Sorry puppy, but you need a bath; you smell.” The villain muttered as he dipped him into the warm water. Soaking his fur before squirting a dollop of shampoo onto his back and slowly massaging it in. 

A poke to his stomach then, “What a chubby little belly, so full of milk.” Okay, rude. It's unfortunately true, though, with the water crushing down the curls, his body looks like a potato with four toothpicks poking out of it for legs. 

The villain continues on with his bath, gently rinsing the soap suds out of his fur before draining the sink and placing him back onto his towel, gently rubbing him dry. 

“They're all done. You've been a very good–wait, what even are you?” He hears Shigaraki ask before he’s being flipped onto his back and stared down.

“Oh, definitely a boy.” Izuku growled when he realized what he was looking at. Biting the finger closest to his face and shaking his head, aiming to tear skin. The man, however, just chuckled as if his attack meant nothing. 

“Alright, alright, I'm sorry. Guess you don’t like being flipped on your back like that.” No, I just don’t like an S-Tier villain who can crumble things to dust staring at my weewee, thank you very much! 

The man carried him out of the bathroom, turning off the light behind him and setting him back on the bed, all while Izuku continued to nip and growl at him. Shigaraki went back to the bags, pulling out several more items and moving them to an unoccupied corner of the room. He laid down several puppy pads onto the floor along with a fluffy dog bed that resembled a cozy cave and some stuffed toys. Izuku was placed into the bed which he hated to admit was very comfortable and left to his own devices.

“Alright, I’m tired. Goodnight puppy.” The man slumped forward onto his bed and was out within seconds. That doesn't really seem healthy, but it's none of Izuku’s business, so he puts it out of mind.

Izuku waited until he was absolutely certain the villain was asleep and made his way out of his bed. He looked around the room for any exits or useful information surrounding the League but found nothing. The room was locked tight, and the floor was free of any debris. 

He made his way toward the windows hoping to see a familiar cityscape and start formulating a plan to escape, but the view held nothing but miles and miles of forest; there weren't even any lights indicating homes nearby. The moon glowed, and the stars shined brighter than he’d ever seen before; the lack of light pollution indicated the absence of inhabitants in the area. 

Meaning Izuku was completely and utterly alone at the mercy of these villains. Even if he manages to make it out of the mansion, his young body won't be able to make the journey back to civilization. He would likely die from starvation, exhaustion, or a predator preying on him. There’s no way he can make it back to UA like this.

Alright, this is not the time to panic; he just needs to think rationally and analyze his options. He can’t access his quirk in this form. He can’t speak, nor does he have the stamina to move large distances. So that means the most probable way he’ll be able to escape is through their mode of transportation. 

If the villain's base is in the middle of nowhere, they have to be getting all their supplies transported in somehow. Judging by this room alone, the base was most likely huge. 

The mist villain certainly couldn't be doing everything by himself. No, there have to be vehicles to help bring things in and out. If he can manage to sneak into someone's bag or hide in a load of cargo meant to be sent out, maybe he can find a way back to–yelp!

Izuku screamed as he was suddenly picked up, derailing his train of thought. He hadn’t even heard the villain wake up, let alone walk over to him. His heart was hammering in his chest, wondering what the villain would do to him for waking him. So far he has been nothing but kind to him, but he doesn’t know if a sleep-deprived Shigaraki will extend the same courtesy.

“It’s okay, puppy. You can sleep with me; stop crying.” Shigaraki sleepily muttered, getting back into bed. This time actually slipping underneath the blankets and resting him on his chest, one hand cupping Izuku’s back, securing him in place. 

‘It's just for now,’ Izuku thinks. He’ll lay in wait until he finds an opening to escape. For the meantime he’ll just have to play the role of pet dog. He can do this! 

===

Izuku’s abruptly awoken by the man gasping awake, lurching forward and sending him tumbling off his chest. Izuku growled up at the man to show his displeasure. 

The villain groggily grumbling out, “Huh? Oh right, sorry puppy,” and petting him in apology. It seems the man had forgotten he brought him home last night. 

Tomura got up, stretching out his limbs, chuckling when he turned to see Izuku doing the same. He dropped him off in the makeshift bathroom in the corner before he went to the real bathroom.

‘I can't do this!’ Izuku’s mind screams. The man had left him in his corner with firm instructions to ‘go potty’ while he went to get ready for the day. Izuku has been sitting, staring out into nothing for the past fifteen minutes. He failed to realize just how helpless he is as a puppy. He can’t even use the normal restroom or chew food on his own. How is he supposed to escape in these conditions?

Izuku startled as the door creaked open. The man walked out in a black suit with a long red cape. The cape had fur lining the collar and gold embellishments keeping it closed. It made him look regal, frighteningly like…a king. 

The facade broke, though, as he stared down at him in concern. “Maybe you need to eat some more first?”

He got a new bottle prepared in a dash and was feeding Izuku in his lap when he told him. “I’ll be away most of today. Someone else will come by to feed you lunch later. I should be back by dinner. Remember to be a good boy and go potty, okay?” He left soon after, leaving Izuku alone.

Izuku had been planning on eavesdropping by the door while Shigaraki was away, but as soon as he was plopped into his bed, he knew he was a goner. He was so full of warm milk, and his bed was so dark and cozy. He fell asleep after spinning around in circles and fluffing his bed way too many times. Only waking a couple of hours later due to the eerie feeling of someone staring at him. He opened his eyes and saw a red reptilian eye peeking at him through the opening of his den. 

He let out a scream-like bark, diving into the furthest end of his cave. Something inside of him was telling him to hide because there was a large predator out there. Logically he knows it's just Spinner, the villain with a heteromorphic quirk, but his instincts are telling him he is going to be eaten. 

The villain loudly exclaiming, “Oh shit!” and flinching backwards in response to him didn’t help either. 

“Sorry, little buddy, I didn't mean to scare you!” The gecko man slowly sank down on his knees, patting them and cooing. “Come on, it's okay. I'm not going to hurt you.” 

Izuku hesitantly walked out of his home. The faster he eats his meal, the faster the new villain will leave. 

“Good job, little guy.” The gecko villain held his arm outstretched, leaving his palm open towards him, waiting. Izuku guesses he wants him to sniff it before he lets him pet him. That’s what a normal dog would do, so he does it. He bumps his nose into his palm and allows the man to pet him. 

He does so for a while before switching his hoodie on backwards and slipping Izuku into the hood. He walked towards the desk where Shigaraki kept his supplies and rummaged through the drawers until he found his formula and a clean bottle. 

“Alright, let's get you fed. Shiggy said you needed two ounces of water per one scoop of dry milk powder.” Spinner said as he measured out the formula and water, carefully shaking the bottle and testing if it was the right temperature on the back of his hand. The man made the bottle with a familiar sort of ease; Izuku wondered if he had any siblings before he decided to become a villain. 

He’s fed once again, then put back into his bed. The man excused himself to go to ‘work,’ whatever that means. Izuku refused to use the ‘potty’ despite how much his bladder is starting to ache and goes back to sleep. 

He wakes up to a concerned Shigaraki. The man takes him out of his bed and places him back onto the pads, encouraging him to use them. Izuku refuses; he shuts his eyes and ignores him. He refuses to let go of his dignity. He is not an animal, and he will not act like one.

He lasts three days refusing to use the puppy pads. After he overheard Tomura mention taking him to the vet to Spinner, he caved, bearing the humiliation of having to go to the bathroom like a dog. Seeing Shigaraki visibly sigh in relief when he saw the soiled pads was going to haunt him for the rest of his life. He's trying his best to stay sane, but he is beginning to crack. Each day feels more degrading and dehumanizing than the next. He wants nothing more than to go home. 

===

He meets the rest of the League a few days later because apparently Tomura thought he needed to be socialized with the rest of the villains after hearing how badly he reacted to Spinner.

He’s brought out to the living area and set down in the middle of the room. For a minute he is just stared at incredulously by the group of lounging villains. Before Toga breaks the silence, squealing,

“Hi soup!” The girl made a dash for him, picking up Izuku before he could even try to run away. 

“That's not his name, idiot!” Shigaraki growled. 

“So it's a boy? No, it's a girl!” Twice asked, petting the puppy in Toga’s lap.

“What is his name?” Spinner asked. 

“…”

“He doesn't have a name yet, does he?” Dabi snarks from the kitchen nearby. 

“Of course he does!” He really doesn't. Tomura’s just been calling him puppy this whole time. 

“Oh yeah, what is it then?” Dabi taunts, walking in with a steaming cup of coffee.

“Uhhh…it's Sprout!” Tomura shouts. ‘Well, that's news to me.’ Izuku huffs. He was hoping Shigaraki would get bored of him and not bother to ‘name’ him. His mother always told him, ‘Don’t name things you're not planning to get attached to; it will just be harder to let go when the time comes.’ He hopes that won’t be true for the villain because Izuku is leaving him whether he likes it or not.

“Sprout?” The group collectively tilted their heads.

“Yeah, because he may be nothing but a tiny bud now, but eventually he’ll sprout into a ferocious beast that will tear you apart on my command!” Yeah, no. No, Izuku absolutely will not.

“Sure, boss…” Dabi said in a tone that sounded like he didn't quite believe him. 

“He has a very strange coat coloration. I've never seen a dog in such a fascinating shade of emerald before. Are you sure he’s not a quirked animal?” Mr. Compress asked, gently taking Izuku from Himiko, holding him from his armpits and staring at him. 

“Not sure; I found him in an alleyway dumped in the trash on the way back from a meeting with Giran.” Huh, so that's what he was doing when he found Izuku. 

Dabi raised a brow. “A street dog, huh?”

“He’s just like us! Abandoned and unwanted before joining the League.” Toga grinned up at the white-haired villain.

“Yeah…yeah, he really is. Welcome to the League of Villain Sprout.” Shigaraki cooed so softly he doubted the others could hear it. Izuku didn’t know what to do with the soft smile being directed straight at him. It was so genuine and filled with warmth; Izuku felt bad being the one on the receiving end, knowing he’s not actually a puppy and doesn't intend on becoming Shigaraki’s new pet. He’s distracted from his guilty thoughts when Kurogiri walks in, his yellow eyes widening in shock as he stares at Izuku before narrowing at the white-haired villain.

“TOMURA SHIGARAKI! WHAT IS THAT!” 

“Oh shit-” Seeing Shigaraki try to run away only to be instantly portaled back into the room by Kurogiri was hysterical. The other villains sent him amused glances and taunts that Papagiri was going to get him, which only made Tomura try to get away faster. Seeing the villain look like a kicked puppy as his caregiver scolded him for bringing a dog home without permission while pouting back that ‘he was the supreme leader now and could do whatever he wanted,’ only to whine when the mist villain threatened to take away his video games, was so surreal. 

Seeing the soft sides of villains that he would have never been able to see as a hero was odd. They were just so human; they liked to bicker and play, had hobbies and interests, they behaved nothing like they did on the battlefield. Living with the villains so far has been strange, and he had a feeling things were only going to get stranger.

===

Over the weeks he’s spent with the man, he’s learned quite a few things. Shigaraki is no longer the tantruming man-child he had been at the USJ or the edgy, immature, teen-like villain he had been at the mall. He’s much more mature in a sense; he no longer loses his temper at the drop of a hat or seems quite so irrational. From the bits and pieces of stories he’s overheard from the other villains, the man is a terrifyingly efficient leader now. 

Though he still has some flaws, like despite being the leader of an army and being surrounded by hundreds of followers. Tomura was so very alone. There was a clear boundary between him and the League that neither party wanted to cross. Maybe it had to do with his quirk or the position of power he held over them. Izuku doesn’t know. 

The man had horrible mental health issues and insomnia. Some days the only reason he would get up at all was to feed him. He barely slept, and anytime he was able to get some sleep, he would be awoken by nightmares and often silently cry until it was time to start the day. Izuku can't just ignore someone crying out for help, so he often starts whining next to the bed, begging to be picked up. It’s only when he’s cuddled up next to Shigaraki that the man is able to sleep peacefully. Izuku got so used to doing it that Shigaraki ordered him a little ramp so he can get on the bed all by himself. 

Despite everything, Tomura was kind and gentle in private. He played Animal Crossing and made cute little areas for his villagers to play in and got genuinely upset when one asked to leave. He said things like ‘big stretch’ when Izuku would stretch out his little limbs after his naps. He got so excited whenever Sprout would ‘learn’ a new trick for him, smiling so proudly down at him it made his head feel all fluffy and warm. Listen, Izuku didn't want to play or follow the man's orders, but whenever he did, it helped push away the man's perpetual cloud of sadness. Being ‘Sprout’ helps him relieve his sorrow and stress and allows him to be happy even if just for a moment. 

Shigaraki speaks to him a lot. Izuku often wonders if he knows he can understand him or if he had a pet in the past he treated the same way. Or maybe he just wants someone to talk to who won’t judge him. He can understand being lonely with no one to turn to. He learns that the man was left abandoned on the street as a child and that is why he took him in. Shigaraki hadn’t finished that line of thought, but Izuku can only assume it was All for One who found him.

Izuku felt a deep pity for the man. Who knew what he could have been if All for One had not found him and groomed him into villainy. Would he be happy and carefree? Maybe a hero? He could have been anything if not for that monster. The point is he wants to help him! He can’t change the past, but if being ‘Sprout’ for a little bit helps, then so be it. 

The only problem is the longer he stays in this form, the more instinctual his behavior becomes. The other day he growled and snapped at Toga for playfully pointing her knife at Tomura. Izuku hadn’t even meant to, but something inside him told him to protect his master, and before he knew it, he was sinking his teeth into the girl's hand. 

It was becoming worrying; the thief said he had to be out of this form in one month, and if Izuku’s calculations are correct, it has been a little over four weeks since he arrived. He was becoming more like a real dog as time passed. He needed to get out of here. 

===

The next weeks turn into a vicious cycle of him failing to escape and falling deeper into his canine instincts. 

Izuku used to hate the feeling of being pet. He thought it was degrading, but now he practically throws himself into any hand willing to do it, especially Shigaraki’s. Same with being called a good boy; at first it was embarrassing, but now it was like an instant shot of dopamine to his brain. It made him all fluffy and happy and made his tail wag vigorously. 

He tried his best to leave while the man was away but always found himself too anxious to actually do anything. His instincts were telling him Shigaraki is the leader of his pack, and being near him made Izuku feel safe and secure. The more days passed, the more anxious he felt without the villain, and the harder it was to run away. 

It didn’t help that he was starting to get attached to the rest of the League too. They are a part of Shigaraki’s pack, so that makes them his pack too. Most of them are just broken young adults who were forced into this life. Their pasts are full of quirk discrimination, mental disorders, and physical and mental abuse. They didn’t ask for this; they didn’t choose this life.

I mean Toga, despite her bloodlust and penchant for stabbing, is just a kid. She still gets excited over puppies and stickers, pouts over having to finish paperwork, and cries out for parents who will never answer her when overwhelmed. She treats the league like they’re her own family. It makes him so sad to think what she could have gone through, that villains were the only ones who didn’t make her feel bad for a quirk she was born with. He wants to help them all, but he can’t do it in this form. 

===

Exactly two months since arriving at the League’s base, he finds his opening for escape. He’s spent his time carefully building up trust and bonding with Shigaraki, never once running from him and doing whatever he wants. Now the man allows him to roam around the upper level of the mansion as he pleases. He usually goes out to the living room to hang out or visits whichever League members have their doors open for him. Dabi and Toga usually have biscuits in their rooms that they're happy to feed him if he does a trick. 

His body has grown older; he has far more mobility than he did before and can eat solid food now. He thinks his body is around four months old now. He can run and jump and has much more energy, perfect to use for his plan.

Earlier in the day he had overheard Toga saying she was planning to set up a picnic in the garden when he was playing with Dabi in the living room. The girl had rushed down with a big wicker basket and announced to the League they were going to eat lunch outside. Most of them groaned a bit but indulged her in the end, promising to meet her outside when it's ready. The girl had squealed and rushed into the kitchen to begin preparing the food with Kurogiri. 

When they finished preparing the food, Toga had set the basket onto the floor while she went to gather a blanket for them to sit on and other supplies. He snuck away from the eyes of the League and made his way to the large basket. It took him three tries, but eventually his jump was successful, and he tumbled down into the basket, landing on a sandwich. 

His heart raced when he heard someone ask, “Where’s Sprout?”

“He probably followed Toga to her room for treats.” Dabi answered.

“Ugh, I keep telling her to stop spoiling him so much; she’s going to make him fat.” Tomura complained.

“I wouldn’t know anything about that, boss.” Dabi whistled, avoiding eye contact, while Shigarakki stared at him unimpressed.

Eventually the girl came back, grabbing the basket and snapping the flaps closed, then asked Kurogiri to warp her outside. “Come out in ten minutes, okay!” she said. Receiving dull okays in response except for Twice, who answered back excitedly. 

Izuku shivers as he feels the girl walking through the portal. He feels the girl set down the basket with a thump and hears her begin to set up. Izuku only needs her to step away for a moment to make a run for it. The basket is moved again; Izuku shudders as one of the flaps creaks open, letting in a ray of sunlight. He thinks he's about to be discovered when–Ring! Ring!  The girl’s phone goes off. He hears the girl turn to answer her phone, and the basket is closed shut.

“Hello? Oh, did I! Whoops, can you open up a portal so I can go get them? No, it's okay, I can do it!” He can only hear Toga's side of the conversation, but from what he gathers, he thinks she may have forgotten something for the picnic. This may be his chance; if she leaves, he can run.

His heart stops racing when he hears the whooshing of the portal opening and Toga’s steps fade away.

He waits a moment before peeking his head out. He sees it’s all clear and jumps out of the basket, tumbling onto the grass. He doesn’t waste any time in running forward into the tree line. The forest floor was rough on his little paws. He could feel sticks and rocks digging into his feet, but he kept running. He couldn’t stop no matter the pain; he had to keep going.

He’s been running for a while, darting in and out of sight as he tries not to be caught. He doesn't know how far he’s gotten since, from his height, everything looks the same, but he knows he’s made no progress in finding a road. He was beginning to get tired, and everything in the forest looked similar. No matter how far he goes, there is no change.

Eventually Izuku finds an empty burrow at the root of a large tree. He enters intending to only rest his legs for a moment but ends up falling asleep. When he awakes, it’s dark outside; he can only hear the hooting of owls and the chittering of critters outside the burrow. 

He debates going out and gaining more distance between him and the League. On one hand, the smart thing would be to stay put and wait till sunrise to move. His body is small and won’t be able to fight off a predator if needed to. On the other hand, the League most likely already knows he is missing, and the more time he wastes, the bigger the chance he’ll get recaptured. 

His time is running out; it's already been over a month. He has to take this chance. Despite his better judgment, he steps out of the burrow. His dog body has far better night vision and hearing than his human body, so he should be okay as long as he stays out of sight.

He creeps on the forest floor, slowly making his way through the darkness, trying his best to keep his footsteps silent. He doesn’t notice the owl swooping down on him until it’s too late. He screams when long talons sink into his soft belly, piercing through him. He tries his best to fight back and wiggle out of the bird's claws to dislodge them, but it only causes them to sink in deeper.

He did his best to scream as loud as he could, but he was bleeding so heavily, and he was beginning to get tired. ‘Is this how I die? Poor All Might, he should have never wasted his legacy on someone so useless…’ he thinks as the world begins to fade. 

The bird brings down its beak and bites a chunk out of his leg. He feels his flesh and muscle being ripped out of him and swallowed. His vision blacks out; the last thing he hears are rapid footsteps and then water? He didn’t know what it was, but his whole body felt wet. Something was shaking him and screaming in his ear. He thinks it's a human?

“Sprout! Sprout, wake up!” Izuku opens his bleary eyes and sees Shigaraki. The man had tears running down his face and looked so hurt. He was crying, screaming out, “Please, God! Please don’t take him too! Haven’t you taken away enough!” Izuku wished he could help comfort him, but he felt so tired, his body felt so cold, and he just wanted to sleep. He’s spent his whole life fighting; maybe now it was time to rest…

“Tomura Shigaraki, he is gone.” 

“No! Don't say that! He's not dead, he can't be!" The villain sobs in agony, kneeling to rest the cold puppy onto the forest floor. He hangs his head over the body and whispers, “Everything I touch I destroy. I'm sorry it had to happen to you too. I loved you so much. Goodbye Sprout." Tomura presses a kiss onto the puppy's head. 

The moment his lips made contact with Izuku–Poof! A cloud of pink smoke exploded from Sprout's body. When the smoke cleared, there lay the naked, bleeding body of Izuku Midoriya. 

“I-i–what?” Shigaraki stared in shock. This boy, Izuku Midoriya, is Sprout. Sprout is Izuku Midoriya. His baby, his Sprout, has been the green-haired brat he’s been trying to murder for months. They are one in the same. They have been the entire time. 

Upon closer inspection he noticed some irregularities. Nestled in his fluffy green hair were a pair of pointed ears and a tail sticking out of him. He never had those before; maybe this wasn't a planned infiltration. Maybe it had truly been an accident that caused their paths to cross and intertwine in a way that will change the both of them forever.

Well, it doesn't matter how it happened; the boy is irrevocably his now, and nothing can ever change that.

“He’s still breathing; take him to the doctor now!” Tomura barks the order at the nomu, who was standing in a sort of hesitant manner. 

“Tomura Shigaraki, I would highly advise against-”

“I don’t care! He’s still my dog. He’s staying with us no matter what.” Shigaraki picks up the boy and walks through the portal. He sinks his face into the boy's curls and whispers, “Don't worry, Sprout; I’ll make sure you get better. Everything will be okay, I promise.”

I loved your puppy fic so much. It was so fluffy and adorable ahh mucho bueno!!

I loved it so much that it’s given me the ability to update my own mha platonic Yandere fic

Ahhhhh thank you so much!!! I can't wait to see what you write!!! <3

Just came across your fic 'Dead Man's Wish' and just finished reading the rest in the series 'The New Days'. It was such an enjoyably dark twisted series on the league 'adopting' the young heroes. Will we circle back around to see if izuku eventually gives in to his fate, and what it takes to finally make him become tomura's good, obedient little brother? Will tomura take more drastic measures to make sure his little brother accepts his new role?

Thank you so much!!! I am glad you enjoyed it!!!I’m definitely going to get back into writing The New Days AU soon! Currently I’m writing a new work and updating the Meant to Be AU. But after I’m done with that, I will be updating New Days and Baby Blues!

But yeah New Days still has at least 4 more chapters to go. I still need to do Izuku’s second chapter, the Kurogiri’s, the Todoroki Family, and then probably the ending.

New fic out now! I repeat new fic out now!