Hero In A Heroine World

The power to be a hero

(Imagine a white empty room with a desk and chair)
"Hello there my name is Izuku midoriya if your wondering why I'm telling you this well i thought it be best to know who i am see i wanted to be a hero but that was crushed at a young age see i was born in a world were only women had a quirk but i had one it was odd really but if you want to know i have to start from the beginning".

Present Izuku age 14
I was walking home after school and another bullying session from my classmates because i wanted to be a hero and my hero book that my childhood friend destroyed i was at the door of my home when i saw the cops and paramedics in front of my house. I ran to the door hey you can't go in there one of the cops shouted i passed by him and busted down my door to see my mother decayed body as if someone drained the life out of her the cop came in and they questioned me i told them this is my house and she was my mom tomorrow it wasn't any better my left eye was burning and katsuki was not letting up on my moms death. But things did get better i met a friend her name was syo she had short black hair blue eyes and was taller then me ( just a thing syo this way means jill sho this way means jack) she even visted me in hospital after katsuki blow me up doc's said i would have two scars that would never heal one medium and another long.

 It was the worst but hey syo was the best when around one time we went to a cosplay convention we dressed up as characters from black rock shooter (see were I'm going with this) syo dressed as dead master i dressed as a male black rock shooter with a real sword she got me for some reason? It felt weird in my hand because it felt like i used it before but when the final year of highschool was coming to a close she went missing i don't know were she is but ever time i sleep i see a version of my self with a green flame in his left eye he told me everything will be shown to you and we will become one he said before i wake up. But right now it was sunday i was in my black rock shooter clothes why because my other clothes are in the wash i was walking around the city with my sword hidden in my jacket because the crime rate was getting a little high when i heard an explosion went off i ran over there to see a sluge monster destroying the area. But what got me was the hero's helpless and bitch(katsuki) (you started to hate her over the years) stuck in it I wanted to help but what could I do I wasn't a hero I didn't know how to fight *you want to help don't you* i hear the voice of the same guy from my dreams * i can help you all you need to do is take my hand and gain my power your quirk as you call it* i didn't need to think so i toke his hand I'll do it i said. The next thing that happen ... well why don't you watch
Ugh my eye i grunted *so you actually toke my offer now that a funny thing well whatever now then raise thy hand and and summon your weapon* i did as he said and a large cannon and toke out my sword HEY i shouted getting everyone's attention I'm going to give you a choice let the girl out and come peacefully or i shoot your eyes out i said at least trying to scare her "please what can a male like you do to me" she said laughing at me i didn't want to do this but i lifted up the cannon and shot out her eye everyone was shocked "agh you bastard I'll kill you for that" * kid run on the side of one of the buildings and jump over the thing and shoot it from above* i started to do what was said but before i could shoot Texas Smash then i felt a great force knocking me into a wall
Hospital
"Ugh" i open my eyes to see i was in a hospital room i looked at my chest to see my wound was gone oh your awake i turned to see a nurse hey do know what happen after the fight i asked sorry but no there is someone who wants to see you I'll let them know your up that she left. *hey kid it me the voice sense we have some time i want to explain some stuff to you to start my name is black rock shooter i come a place called the other world the reason I'm here is because you passion to be a hero so i chose you to have my powers* i see you must have more of a reason for these * well your kind of right see i did chose you to become a hero but my world is in dire need beings from my world are seeping into your and i need help to stop them* i said i pondered  the idea and came to a conclusion i will help you i said determined. *that great then let get training with your powers* before i could replied there was a knock at the door i said come in and i saw all-might hello there young boy i am all-might and i'm here to ask you some questions she told me before you ask i said i began to point out all this different things to start i don't know how i got my quirk no i don't want your power and three if the media harasses me i'm going to start shooting. She just stood there frozen from what i just said before she could say anything i walked out the room
Outside
I was walking outside when I heard a voice i hope to ever hear DEKU i turned my head to see miss bitch herself "deku what the fuck when did you get your powers and who said you could" *CRUNCH* she didn't even finish when I punched her and slammed her into the wall (something like that)

"Now listen to me you have no right to talk to me like that I have put up with you abuse for FAR TO LONG if you ever try to act like that to me I will cut off your hands you got it" I shot near her head "I SAID YOU GOT IT" she just shook her head and I walked home and lay on my bed knowing school will suck.
Otherworld
I a land of the undead there is a castle with multiple women in different colors talking
Green: so it seems there's a new black rock shooter running around

Brown: so what are we going to do we can't have another shooter running around messing with our plans

Yellow: I have a idea we could get him to join us it make our job easier

Gold: she has a point if we can get her to join us we might be able to take over both worlds

Green: fine I want ever one to keep an eye on there domain and make sure nothing happens there

Everyone leaves

Green: soon izuku we will be together