Prologue
The world as a whole knew of the existence of the magical world, but they still remained separate. They revealed themselves when Quirks became widely accepted. Still, they remained independent and refused most offers to collaborate with muggles. They didn’t accept the help of Pro Heroes in their own matters, but they did have aurors that were almost as widely known. Just as they didn’t accept Heroes in their matters, they didn’t allow their own people to interfere in muggle matters.
Most muggleborns were thought to be Quirkless until they were brought into the magical society ―the age varying depending on the government. However, not all Quirkless people were magical people.
Lily left England when the conflict there picked up strength and took on a Charms mastery for around half a year before the war reached its peak and she went back to help. During that half a year, she met a young man named Yagi Toshinori whom she held a brief relationship with. She never told him she was magical and he never got to tell her he was a Pro Hero before she left. It was two months after getting back to English soil that she discovered she was pregnant.
The mastery had been her adopted brother’s ―James’― plot to try and keep her away from the war when her being blood-adopted into his family put a target on her back.
James named Lily’s child as his Heiress which would only change if he himself had a child, which in itself was doubtful as his fertility was questionable due to being a pureblood and some of the shenanigans he got up to during his school years.
Lily never told anyone who her daughter’s father was, believing him to be a simple muggle, and not even one with a Quirk, and not wanting to bring him into their world unless the war ended. Even if it did and she found him again, she considered that he might not want to be uprooted from the muggle world.
Almost two years later, both James and Lily were killed protecting the Potter Heiress and she was sent to Lily’s family. She lived with them until she turned four, when they found out she was Quirkless and therefore bound to have inherited her mother’s magic.
Petunia had pitied her sister for being Quirkless, but then they had found out she was a witch and their parents had been so very proud. She had believed Lily thought herself the superior one and started hating her for not being someone normal. She’d gone from being her little Quirkless sister to being a powerful promising witch who outshined her own power. She was simply envious.
She found Lily’s trunk from back when she left for her mastery and figured out how to find the child’s father. They immediately asked for a meeting with the man, which in itself wasn’t easy as he spent most of his time using his alias ―not that they knew that― and turned her over onto his custody.
And so, Toshinori found himself in custody of a four year old magical child that turned out to be his own daughter and who’d been severely neglected by her family.
In the beginning, juggling his bright career and his new responsibilities as a father was hard and he had so many doubts about being able to do both that he even gave some thought to passing her over for a close friend of his to take care of.
However, his sidekick at the time, David Shield, helps him make up his mind. Seeing the bond his dear friend has with his own daughter and the budding one between him and his own daughter, he decides to give his all to parenting.
After the first bumpy year, he slowly got used to it. And to magical accidents: they received a fair few visits from MACUSA.
His daughter set her mind on becoming a hero, after she was bullied in her school for being quirkless, and Toshinori wholly supported her, going so far as to offer to pass his own quirk onto her. She surprised him by refusing, though, and saying she would become a hero on her own.
Then, when she was six, her father decided it was time to move back to Japan.
Upon arrival, though, they got a visit from the Japanese Ministry of Magic and a member of the ICW, due to her identity posing a problem in the future on an international scale. When she was invited to Mahoutokoru, the magical school of Japan, she refused to go, because she wanted to be a Hero and entering the magical world would just be an obstacle in her way. However, for a magical child to be wholly untrained was dangerous and she got convinced to join the school for a year at the very least.
In the end, she turned out to be such an outstanding student she was labelled a prodigy.
When the time came to decide whether she would continue her magical education, they received an unexpected visit: the Headmistress of the school and the Chief of the ICW.
They both explained that there was much unrest in the country due to the magicals’ inaction and refusal to help. The Japanese Ministry was much less stagnant than other countries’ and was trying to adapt, so they and the ICW had reached an understanding. And it all would begin with her.
As long as she continued to do outstandingly and managed to keep up with all aspects of her education, she would be allowed to graduate early. She would have to work harder than most and prove that she is deserving of the privileges she would be given, but if she did, she could leave in time to begin Hero school.
Under her father’s watchful eyes, she swore to become the first magical Pro Hero.
The Japanese Ministry hoped she could pave the way for a closer relationship between both worlds and maybe an eventual fusion of them.
Of course, after that, she applied herself hard to her magical classes, wanting to apply her powers to her future career as a hero, and still managed to keep up with her muggle education. She knew UA only accepted the best and she would accept no less than UA.
On top of all that, she learnt a bit of personal defense. Toshinori was a bit reluctant about it in the beginning, but relented because he knew how important being a hero was to her and not being prepared could end up very badly for her.
Things went on like that until she turned ten, when her father’s final battle with All For One took place and he ended up severely injured.
She took leave from school for a while, intent on being by his side even as he spent a few weeks unconscious. When he woke up though, her father was angry at everything and even snapped at her once, though he regretted it immediately.
When he stubbornly refused to drop his hero work, she was painfully understanding, even though she also feared losing him.
Then she turned eleven and her Hogwarts entrance letter came. She refused, of course.
She went to her Headmistress and told her, which infuriated the old woman as the school should have sent a petition to Mahoutokoru and the Japanese Ministry first.
When a letter arrived asking her to visit the school before making any final decisions, she goes to England with her father for a week. They visited the school and its grounds and they paid a visit to the famed Diagon Alley, where she bought Hedwig.
However, she still refused entrance into the school, as she did for all the attempts later on. Mahoutokoru wasn’t only a great school: it also allowed her to be close to her father.
The next year, in what was a clear attempt to get her to the English school, Mahoutokoru was invited to Hogwarts, where an International Tournament would be held in the name of international cooperation.
She participated in the tournament, though not voluntarily, and her father managed to get his old friend Principal Nezu to send a couple of his teachers to help train her at the time. After all, one of them had just fired his whole Hero class.
The next year she went back to Mahoutokoru safe in the knowledge that if the British Ministry and school didn’t back off, they would be facing an international conflict on her behalf by the Japanes Ministry, and with the backing of the ICW no less.
A year later, she was graduating from Mahutokoru with high honours, just as she’d set out to achieve. She even got a recommendation from the school, but refused it because she wanted no one to be able to say she hadn’t earned her own place in UA.
All throughout that year, she had kept in contact with Aizawa and Hizashi, her tutors in the Tournament, and it was the latter who introduced her to videogames saying she needed to loosen up and have fun once in a while too.
The last year before UA was supposed to be a calm one, with her focusing on her muggle studies and playing videogames once in a while. But then her birthday came and her father got her a NerveGear. Aizawa and Hizashi’s present was that the latter had pulled some strings and got her an early reservation copy of the official Sword Art Online. He somehow knew that she’d applied to the beta and being denied by a small margin so he’d reserved a copy of the official game for her.
And then, on November 6th, Sunday, she tried the game and got trapped alongside 10.000 other players.