Bonds of Blood

Chapter 1: Origins

In a hospital in Japan, a couple smiled down at their newly born daughter. The couple was Hisashi and Inko Midoriya and the baby was their second child, Izumi Midoriya. Izumi had the same big green eyes and green hair as her mother.

Smiling softly, Inko kissed her daughter on the forehead as the doctors came in and cleared both mother and child for departure. After they were let out, the happy little family drove home to their house in Mustafa.

The house was a small building with a small front yard and an even smaller backyard, it was surrounded by other houses the same size and shape. The backyard was surrounded by a high wooden fence. Everything about this house and neighborhood screamed, 'friendly' and 'cozy'.

When they entered the home, Inko immediately took Izumi to her room, while Hisashi grabbed a slab of meat from the fridge, went out the backside and opened it, to reveal a miserable looking two year old boy, chained to a doghouse.

"Here ya go, mutt." Hisashi said to his eldest child, throwing the meat at the child, nailing him in the side. The boy yelped as he grabbed at the meat that had hit him and began gnawing on it. The boy looked similar to his sister and mother, large green eyes and green hair, but he also had his father's diamond patterned freckles on his face. However his more noticeable features would have to be his enlonged canines and sharp claw like nails, traits given to him because of his animal-like quirk, the reason he was out here.

"Just a dog," Hisashi scoffed as he watches the boy, "Since Izumi is here, we'll have to integrate you into living like a human, no matter how useless teaching someone like you that would be. But we've got a year or two before she can fully comprend that you aren't living like a human."

The boy looks up at his father, sadly as he sees the disgust and condescension in his gaze and lets out a whine-like sound. His mind is too young to understand why, but knowing that his parents didn't like him for some reason.

As the years went by, Inko and Hisashi gave Izumi all the care and love she could want. They let her watch TV, bought her all sorts of presents, kissed her goodnight and a bunch of other sorts of things.

Izuku was fond of his younger sister, even if he was jealous of all the love and attention she got. Even though his parents didn't treat him as just an animal anymore, they still treated him with almost no love, instead devoting all their time to Izumi. Due to the lack of care he was given, he began squatting instead of sitting, he walked with a slight hunch of his shoulders, and he began to run on all fours, throwing himself forward like a predator. When his parents spoiled Izumi, he would grit his teeth and try to be happy for his sister, but slowly the neglect made him bitter to his younger sister.

Izumi, for her part, adored her older brother, always thinking him so cool and strong. She tried to imitate him, only for her parents to tell her, his habits weren't proper, then they'd punish him for teaching her bad habits. She'd sneak out of bed to snuggle with her big brother, however this was slowly scolded out of her, being told they didn't want to give Izuku the chance to 'do things' to her.

When Izumi found out about her quirk, Izuku's stomach dropped. Her quirk was almost an exact copy of his, and Izuku was certain she'd be treated the same way as him. However, that didn't happen, Inko and Hisashi treated her the same way they'd always treated her, not caring about her quirk. This turned Izuku's bitterness into HATE. He hated his parents for abusing and neglecting him and he hated Izumi for getting the one thing he wanted, his parents love, without having to do anything. This hatred lead him to go to. . . Extremes.

"Are you Izumi Yagi?" The four year old girl, sitting in the front yard, playing, looked up at the tall man in a fedora and sunglasses. Izuku came over from the other side of the yard.

"Yes," the girl answered, not realizing she shouldn't talk to strangers, heroes talked to strangers all the time, and her quirk was good enough to be a hero's.

"Good," the man said, as he pulled out a syringe and jabbed her in the neck with it. Izumi tried to scream, but her eyes dimmed and she blacked out.

*

When she finally came to, Izumi found herself in a small, completely white room with barely enough room for the cot and toilet tucked into opposing corners. As the young girl stood up, she noticed security cameras, tucked into the four corners of the cell, each one trained on her no matter where she moved.

Suddenly the large, metal door swung out, revealing a young woman standing there in a white lab coat and glasses.

"Come with me, Izumi."

"Who are you?" The girl asked.

"You can just call me, Doctor, as you will with all the other adults here." The woman answered calmly, like she'd had to answer that before.

"Where am I?"

"That's classified."

"Where is Izuku?"

"He's somewhere around here, probably being worked on by another one of the doctors."

"What are you going to do to me?"

"We're going to run some tests. Think of this as a check up."

"I want to go home."

"You can, as soon as we're done. Now follow me." Izumi followed the doctor as she was led through the lab, thus starting a new routine, wake up, get a physical exam, do some exercises and obstacle courses, eat breakfast, get taught the basics of the important learning courses, eat lunch, fight one of the other kids chosen at random (occasionally Izuku), get some more schooling, eat dinner, go to bed and repeat. She didn't enjoy this routine, but she did enjoy what little time she got to spend with Izuku (even if they were fighting and Izuku got angrier and angrier each time.) This routine continued for 11 years.

*11 Years Later*

Eraserhead eyed the large building in front of him, suspiciously. He'd been tipped off anonymously, about an organization conducting experiments on children in the area. He turned and inspected the small group of heroes and cops behind him, as he silently gestured to move in. He felt Present Mic and Midnight flank him as he approached the front door and knocked, only for the entire door to fall inwards, having been ripped off its hinges and put back as some kind of joke.

Midnight gasped as they stepped inside, dozens of bodies lay, torn to shreds, spread around the room, most in scientist clothes, but some wore body armor such as a guard would wear. As they searched the building, the police and the detective they brought checked the bodies and went over the computers.

The trio of heroes slowly found an overview of a room, stepping into a lift, it lowered them down to the level of the empty room. Walking through the door to the room, they found 10 doors, all had a roman numeral next to it, and all but the last one had been broken into.

"Doors ripped off hinges," Mic noted, "Probably the same guy who did all that stuff up top." They looked inside of the rooms broken into, finding masses of flesh and blood, these kills were much more brutal and made it hard to even recognize the corpses as human. Midnight unfortunately lost her lunch not long after.

With all the unlocked rooms searched, it was time for the final one. Forcefully unlocking the door and pulling it open, they were shocked to see a girl, maybe late 14 early 15, curled up in a corner, slowly looking up at them with frightened eyes.

The girl stood up and pressed her back to the wall.

"Easy, kid," Erasurehead said, taking a step closer, hands raised in a calming manner, however that seemed to be the wrong move as the girl growled and three knife-like blades popped out of her knuckles, as she lunged.

'SNIKT'