Part 0
In this timeline, Izuku is one of the two twins born to Inko, his sister Izumi is a prideful girl.
Girls are the only ones who are seemingly born with a quirk, boys are often given a quirk, there are two factions of sorts, the rebellion and the hero republic, the rebellion sees what heroes are doing, and plans on resetting the lust crazed, female supremest government, the hero republic believes the rebellion, are just stuck up virgins, who after losing their v card, will come to accept their lewd ways.
Males are often seen as nothing, but toys or harem servants/slaves, Izuku was abused often because he believes, if a girl truly loves a guy, they wouldn't force it upon them and have a harem, at their beck and call, that true love isn't something power can get you, in large amounts, but is something special and sacred, that girls that conform, to this societies ideals of power equals love, are deluded and lust crazed without any reason.
Izuku is treated like a slave, but has avoided many rape attempts, we go to him in school.
Extra thot 1: hey zuku~ want some time between us~
Izuku: I have only one question, do you believe that love, isn't something power can get you, yes or no?
ET1: no.
Izuku: then that's my answer, now if you excuse me, I've got better things to do than act subservient, to people who don't know what love is.
Izuku radiates anti simp energy to such a level, simps look at him and grow nauseous, of his presence.
After a while Izuku fled his old home, but watched to see what they would do, they celebrated his disappearance, as if it was some blessing from some heaven, so Izuku became a vigilante, taking down heroes and corrupt people, who seek to use guys for their own pleasures.
during his time with his family, he taught himself to fight back and defend himself, with using weapons, and not using weapons, that was when he found out, about the basements time distorting properties, time moved faster inside than out, a day in the basement was just a minute outside.
But Izuku aged as if he was outside physically, but mentally, he matured to be a sort of sage in a child's body.
Izuku could disarm his opponent with little effort, he deemed that basement, as a hyperbolic time chamber of sorts, not the full thing, but close enough.
Due to Izuku has the body of a high schooler, nobody knows what he is or how old he is.
Here is one interaction with this worlds aizawa.
Aizawa: you are as tall as a teenager.
Izuku: I assure you, I'm wiser and more experienced, than you ever can imagine.
Aizawa: I don't doubt it, but why are you hurting those heroes?
Izuku: they rape, lie, manipulate and act as though they love people, but the problem with seeing through everyone, is that you notice who people really are, how corrupt this place is.
Izuku: guys get raped or forced upon, to forfill any girls desires, heroes put themselves and other females, over every guys life, it's disgusting, I would tear it apart if I could, turn it to shreds, then make the remains vanish into oblivion, but I choose to be the hand, the one that truly helps, those who are suffering, to need to remind them, there is still good in this hell of a world.
Aizawa: I see, what about your family?
Izuku: they don't care, hell, they kept me locked in a basement, for what felt like years, would they really care, if I was to go missing every now and again, or to just vanish from their lives.
Aizawa: look kid, I'm sure they care for you.
Izuku: nah, I know they don't, my quote unquote sister lashes out and blames me, for every little thing, as for my so called mother, she leaves me locked up, only letting me out to go to school, where girls try to get me to join them, or get bullied because I'm 'quirkless', I'm aware they had a party over it, not get worried or call the police to search for me.
Aizawa: what about the mask?
Izuku: it's easier to hide behind a mask, for everyone to relate it with someone, who watches over guys than to show my face, it also has the risk of people recognising me, trying to get with me, also, it's dream, if you're wondering about a name to call me.