Chapter 1 - Izuka
Today was the first day of the new month; among the Midoriya family, it was also known as Izuka's Favorite Day. Most people might find it peculiar that a grade-schooler had such a specific day as their favorite. But to Inko and her daughter it was part of a unique tradition the two of them shared.
You see, in the morning, Inko would journey down to the wall of mailboxes for the tenants of the building and pull out a brightly-colored envelope that held a postcard. Since the postcard never had any writing on it both mother and daughter would go to the local library and find out as much information about the place where it originated.
Sometimes they found exciting recipes to try or famous local legends about the areas where the card came from. If the place looked particularly interesting to them Inko would add another name to a small list of places to visit for holiday. By the end of the day the two would always place a new pin onto a large map of Japan Inko had in the living room before placing the postcard was carefully into one of her treasured scrapbooks.
Today, however, was different. Today was the day that everything changed.
Izuka watched with concern as her mother quickly ran around the apartment, calling her job and Izuka's school to tell them they were unable to come in today. Finding her voice Izuka asked her mother if everything was ok and where their postcard was. Inko had just given her daughter a broad smile told her that her uncle was coming to visit them instead.
Of course, Inko had always told her daughter that the postcards came from her older brother. Still, Izuka had never actually met the man in person before. Like her father, Hisashi, Izuka's uncle was just a name. The quirkless girl had never seen a picture of her uncle and when she tried to imagine what he looked like; all she could come up with was a boy version of her mother. Like how Kacchan looked like Auntie Mitchan.
Excited and hoping to make a good impression, Izuka ran off to straighten up her room. The girl was was so focused on her cleaning and organizing that she lost track of time until a loud 'thud' brought her back into reality.
Grabbing her All Might action figure, Izuka made her way to the kitchen, wincing as she heard her mother cursing once she was close enough.
"- not an idiot. You should have come here sooner, damnit."
Taking a deep breath, Izuka peeked around the corner and saw her mother trying to pinch the face of what looked like a man who was made of smoke. Izuka looked closer and noticed that it wasn't only the stranger's head that seemed to be made of smoke; it was his whole body. Curious Izuka stuck her head out further to get a better look at the strangers.
The small person next to the formal looking man seemed to sense her presence and turned around their red eyes looking directly into her own green ones.
The boy, who was obviously older than Izuku, had light blue hair that hide most of his face. Still, Izuka could make out his red eyes poking through uneven bangs and see that he was hurt, fresh-looking cuts and bruises littered his pale face. An especially painful looking one just over his lips that had Izuka raising her hands to her own lips.
Not wanting to be rude, Izuka waved to the boy. He scowled in return and turned back to the adults grabbing the cuffs of the formal man's outfit and pulling it one finger raised as he got the attention of the adults.
"Ah Izuchan," Inko smiled, noticing her daughter. "Let me introduce you to your uncle Iz-"
"Kurogiri," the tall man interrupted bright yellow eyes staring at Izuka walking over and kneeling down to offer his hand to the girl. "It's nice to see you again, you've certainly grown since the last time I saw you."
"Wow," Izuka watched in awe as her own hand went through some of the smoke when she tried to shake her uncles' hand. "Is this smoke apart of your quirk? Can you turn your whole body into mist? If you did turn into mist, how do you change back?"
Inko smiled, watching as her daughter started asking her brother question after question, hardly pausing to take a breath.
Finding out she was quirkless had nearly destroyed Izuka. It was only recently that she had started come back out of her shell. Inko would often find her drawing and writing in front of the television or at the computer, mumbling to herself as heroes moved across the screen.
Inko once took a peek inside the notebooks, stunned to see the numerous pictures of heroes alongside messy detailing their quirk's strengths and weaknesses. Inko knew Izuka was smart; her grades well above a normal grade-schooler. But this level of analysis was beyond anything Inko had been prepared for. Izuka's ability to point out such detailed ways in which a hero's quirk could be improved or neutralized with such accuracy worried her.
Many would undoubtedly try to take advantage of her daughters' gift, and sadly not all of them wore the label of a villain.
"It's alright, Inko, she's just curious," Kurogiri chuckled, holding his hand further so Izuku could continue with her examination. "I recall you being the same when my hair first started changing."
Inko coughed and tried to hide her blush, looking at the boy near her, trying his best to make himself look as small as possible. Sadly, nurse unfortunately familiar with this type of behavior from children after her many years working in the pediatric field.
"Hello there, my name is Inko Midoriya, what's your name?"
The boy didn't respond; he just grabbed the hood around his head and pulling it down, keeping one finger suspended in the air as he did.
"Iz- Kurogiri says that you hurt," Inko spoke, not deterred by the silence as she tried to find anything visibly wrong with the child. Unfortunately for her, the large hoodie he was wearing was making that difficult.
"Would it be alright if I took a look?"
The boy's hands stilled for a moment, and Inko thought for a moment that she was making progress. Instead, he let go of the clothing and started clawing at his face and neck, drawing bright red beads of blood with every scratch. Inko tried to grab his wrists to stop him, but the boy hissed at her and jumped back out of her reach tripping over the small stool she had for when Izuka helped her in the kitchen.
Falling backwards, the boy placed all five of his fingers on the stool to steady himself. The two females watched in shock and awe as it started to crumble as soon as his hand fully touched the heavy plastic. Now looking completely terrified, the boy crawled backwards into the nearest closet corner, curling up into himself.
"Tomura Shigaraki, what have I told you about using your quirk on objects," Kurogiri reprimanded, turning to his sister. She was just staring at where the stool was a moment ago, now a pile of ash on the floor.
"I apologize, Inko, this is why I brought him to you. Tomura has been to see numerous doctors, but each time he dissolves their instruments before they can complete examining him." Kurogiri explained leaving out that sometimes it was the doctors themselves who Tomura used his quirk on.
Inko frowned at her older brother, placing her hands on her hips like their mother used to do when she scolded them. "Well obviously he's scared, have you not tried to make him feel comfortable when you take him to a doctor? Perhaps bringing a toy or game to play with."
"Sensei and I felt that given the extent of his injuries, Tomura needed medical attention immediately." Kurogiri answered thankful Sensei talked with young Tomura about not bringing 'Father' with them. Even underground doctors had a limit to what they would allow in their clinics.
Inko looked at her brother, dumbfounded. It was no wonder the boy acted like a scared animal if her brother and Sensei were trying to force the issue. Reaching out, Inko firmly smacked the metal brace repeatedly, calling out a new name as the hits landed.
"Idiot … moron … dummy …"
Kurogiri's yellow eyes narrowed slightly stepping backwards out of range of Inko's attacks. "There is no need for name-calling sister."
"There is when you don't use your brain," Inko growled.
Turning towards the corner where Tomura sat watching them, Inko gave a soft smile approaching slowly, giving him plenty of space so he wouldn't feel trapped. "I'm sorry about my brother, Tomura, was it? Sometimes I think he wasn't born with a lot of common sense."
Tomura's red eyes flicked towards Kurogiri for a moment a faint twitching on his lips as he looked at Inko again.
Inko smiled in relief. "I'm going to go get my first aid kit first just in case you want me to look at your injuries later, ok? But first, why don't I make us some lunch?"
Standing up, Inko gave her brother one last stern as she walked out of the kitchen. Once Tomura was sure the Kurogiri's sister wouldn't grab him as the other doctors had tried to, the boy put his head back into his arms, intent on blocking out the world.
Unfortunately for the small decay user, he had forgotten about the girl as she settled into her mother's place and started asking him questions a mile a minute.
"I like your quirk; do you need all five fingers to activate it? What's the largest thing you've ever made disappear? Do you need to worry about hurting yourself when you use it? H-"
"... hate." Tomura grumbled, looking at the smiling doll that the girl had on her lap. "I hate him."
"What?" Izuka said, looking backwards at her uncle in confusion. "Why do you hate uncle Kuro?"
"Not him," the boy hissed eyes narrowing, pointing at All Might. "Him."
Izuka was shocked, was someone even allowed to hate All Might? He was All Might, even villains seemed to like him since they gave up so quickly whenever he showed up. As curious as Izuka was, she also didn't want her favorite action figure to get destroyed like her stool. Getting up and quickly running to her room, she placed the doll on her bed before sprinting back.
Kurogiri watched his niece, wondering what she would do next surprised that he hadn't had to interfere when young Tomura saw the action figure.
Tomura frowned and put his head down again when Izuka ran away, not surprised when she did, everyone loved Al … him. Declaring that he hated the number one hero always made people look at him funny. Not Sensei though, he would always smile and pat Tomura on the head whenever he said it.
Thinking that it was the Inko woman again, Tomura was dumbfounded when the girl returned to where she had just been sitting only this time without the offending toy.
"How do you sleep at night, do you put band-aids on your fingers?" Izuka asked, picking up her questions from where she had left off as though nothing had happened.
Tomura looked at the girl, stunned that she would choose him over the hero. "You made him go away … why?"
Izuka frowned slightly. "You said you don't like All Might, I don't understand why he's a hero. The best hero ever!"
Izuka threw her arms up with that, hoping that Mukkun would join her. When he didn't, she shuffled closer and grabbed his sleeves pulling them up with her so that they both had their hands in the air.
Pulling his arms away carefully so that he didn't hurt this weird girl Tomura frowned and shook his head. "All Might's stupid. Sensei is better, he saved me."
Izuka cocked her head curiously. "Maybe All Might couldn't find you. But if your Sensei did, they must be amazing if they could do what All Might couldn't."
"He is," Tomura nodded, smiling brightly and surprising Kurogiri in the process. This was the first time he had ever seen one on the boy's face. "And then he kept me safe from the bad people who were after me."
"Wow," Izuka gasped completely engrossed by Mukkun's story. "Then I wanna be like Sensei too."
"Huh?"
Izuka smiled again. "I'll always find you and rescue you."
Holding out her hand to Mukkun pinky extended, the girl secretly made a vow to herself to always protect her friend from now on, no matter what.
"I promise."
~*~*~*~*Notes*~*~*~*~
Since Izuka is eight here, I'm going to make Tomura eleven that way, there's not too big of an age gap. Since Tomura's age isn't actually told on any site I could find, and how he acts in the manga, I'm going to say there's less than a ten-year gap between him and class 1-A.