Male Reader x A Certain Scientific Railgun

First chapter its more like the prologue

"I should've took the bus" you say to yourself walking down the street.  You stop at store to grab some grub and leaves sigh you see a weird wormhole... Portal... "What is that" you mutter to yourself you extending your arm into it. You hear a scream and immediately yanking your arm back if there's people on the other than I could do a bit of tomfoolery you thought to yourself you stick your arm through again but this time doing the middle finger . You hear a gasp this is awesome you think you move to the other side of the portal your more logical side came back wondering how it appeared. You still wanted to mess with them you wanted to stick your head through you laugh to yourself before throwing a rock in their. You think to yourself some more "how come I can only hear voices" you whisper to yourself "who's their" you hear a female? Voice coming from the portal thingy. And then you see a ball of fire coming you quickly dodge out the way, backed up a bit after almost passing away you decide it's best to come back tomorrow. Walking home you unlock the door and head to sleep waking up you take a quick shower, brush your teeth than leave your apartment I head back to the wormhole you look at with confusion assuming it would disappear. "Well guess I can still check it out some more" you stick your head through seeing a bedroom? It was small a basket in the corner shitty looking bed bookshelf it looked almost as bad as your apartment you laugh to yourself you contemplate jumping in "it's now or never" you drop in as soft as you can you turn around seeing the portal disappear. Your face quite literally dropped "fuck" you look through the window seeing a city. You hear footsteps you unlock the window and quickly leave. "Great" you said while choosing a direction to walk in you take notice of the Mandarin? Japanese you couldn't tell the difference you hear a loud noise and blue flash you turntail and walk away from the noise you shove your hands in your pockets than sighing. "God I'm such and idiot why did I enter the portal" you say to yourself. Wonder what I can do here, as your walking you pass just by looking at it you can tell your in a part of japan "well know I have general location of where I am" you mutter to yourself. Seeing students leave and probably the most interesting thing you'll see all day a girl flipping another girl's skirt and you almost wanted laugh but you did not seem like an asshole. You continue walking the direction you were heading and find a cafe at least that's what you assume it is you sit down in one the booths. you hear a Japanese timid voice you assume she asking what you want you say "no" in a bored tone she walks off you hear the door open with the same two girls and two more two of them had black hair the other two had brown hair, you shrug and put your head do- "onee-sama" something screamed what The fuck was that you thought. After that thought went through you decide to leave you bump into someone it was the black haired girl, you are now both on the ground you quickly stand up everyone was looking at you. And to be real you did not think the pressure would build this quick. You extend your arm and help her up. And you wanted leave it at that but she spoke Japanese you have no fucking clue what's she's saying. You point to your mouth and shake your head the black haired individual nods her head in understanding. You than quickly leave with a wave "thank god" you mutter to yourself you need money you head into alleyway and notice a heavily dented baseball bat you pick it up and leave the alley you start thinking up ways to earn money