Multiverse Theories A B*tch

It's a shitty day and it's only just begun. First, I find out I died before the system unlocks, my younger self kissed Katsuki fucking Bakugo of all people, he had a crush on me AND IM IN THE WRONG FUCKING TIMELINE! If there is any saving grace for this shitty day it's that Izuku is safe and by deductive reasoning so is Katsuki. The only problem now is to figure out if I'm a ghost possessing izuku or I'm simply part of his being as a result of me fusing with him.

"Guess it was just my imagination or maybe someone quirk?" Izuku pondered. "For a second I thought I heard sis. Maybe her ghost is telling me I should visit more often." With a dry laugh, he went back to write his hero analysis book

Right, I still have to deal with my brother. Should I reveal myself to him? I know he can hear me so contact is possible but is it really smart to let him know I'm still alive? I could probably make my family happy with my return but if I can't even perform my duties as a daughter and sister there is no point in even returning as I might as well be mentally disabled for the rest of my life. Fuck! I'm being stupid again, I should stop thinking and start seeing what I can do before I make that sort of judgment.

So for the next eight hours, I tried to do basically any and everything I could think of besides talking. What were my results? Turns out that I cant use my quirk or control izuku's body whatsoever. Furthermore, I can't feel or smell anything Izuku can only see and hear things that he does. Also, It turns out that izuku has a mindscape that I can access freely and it looks like the Windows XP wallpaper but with a single tree on a small hill. Not all that interesting since I haven't figured out how to do anything in it but what does make it interesting is the cacoon on the tree I found in there. It's what helped me conclude what I want to do. Which is not to reveal myself or if I do for some reason, I'll reveal myself as a different person.

While I was gathering information on what I could do I also watched izuku talk to mom, good to see she's doing well, do chores, go get groceries, and visit my grave. Visiting my own grave was pretty weird but all together informative. Turns out izuku likes to talk to my grave like I'm actually in it. He complained about a lot of things like katsuki still ignoring him, his bullies, his disappointment with our parents for not visiting my grave on our birthday, and how he still missed me. He also shared things like current events and favorite memories he has of me. This lasted for a whole hour before he went back home and got a surprise birthday cake from mom. I forgot it was his birthday. I'm such a shit sister. The day came to a close soon and izuku was back in his room writing in his hero analysis a bit before going to sleep. Once he got his notes done he made a big X for today's date on his All Might calendar before tucking in and dozing off.

This may be an alternate universe but it seems like Izuku is still an All Might fan. Glad to see some things are constant, maybe the rest of this universe hasn't diverged too much from the original. It's July so he's on summer vacation so it'll be a while before I see how his school life is going but at least I can think about the next step of what I want to do. Since darkness is all I can see right now I might as well chill in his mindscape while I think.

When I appeared in his mindscape it looked like a lot more trees grew while I wasn't around. "Hmm, looks like izuku redecorated in here. It almost looks like the forest we used to play in" I said out loud because I figured wouldn't matter since Izuku should be fast asleep. I thought he was revisiting old memories of when we were younger until I heard blood-curdling screams in the distance. Without a thought, I race to where the screams come from, when I arrived low and behold I see a little izuku on the ground watching Muscular kill basically everyone he knew while crying. Our mom, me, the Bakugos even kids from his school. I realized pretty fast this was some form of PTSD-induced nightmare and tried to attack Muscular in hopes of stopping it but all I did was phase through him as he continued to kill people close to Izuku.

It was then that I made my way to izuku in hopes that I could at least shield my brother's eyes from this massacre and to my surprise he was staring right at me. I figured it wouldn't matter since I couldn't interact with his dream I thought he wouldn't be able to see me but there he was staring at me with eyes of all sorts of emotions. I kneel down right in front of him hug him and say "everything is going to be ok Izuku you don't have to be scared anymore". His crying goes up a notch but these tears are not from sadness or anguish but of happiness and joy. The surroundings around us flashed white and the mindscape looked normal again. No forest, just a single tree on a grassy hilltop.

"Sis, is it really you?" Izuku says between sniffs while hugging me tighter. "Please tell me this isn't a dream."

Shit, shit, shit, shit, shit. Do I tell him it's me? I wasn't planning on it but looks like I got no choice. Hold on, maybe I can still lie my way out? Nah, fuck it I'm telling him. "Yeah, you big cry baby. It's really me. But unfortunately, this is still a dream."

"It doesn't matter, as long as you here that's all that matters," Izuku starts crying even harder while slightly pulling away from my hug to look at me. But not fully committing to letting go as if afraid I would disappear the second he lets go.

"Well, consider my arrival godsent," I say with my brightest smile. The crybaby bawls even harder than before somehow but this time his face scrunches up. "Geez I know you're happy to see me but could ya tone it down with the waterworks" A goofy laugh escapes as I see his ugly crying face appear. "Wow, your crying face only got uglier after you grew up huh?"

Izuku's embarrassment temporarily overwhelms his happiness and starts to turn red from embarrassment so he deployed his best comeback. "S-shut up!"

I only laugh more which makes his face become even redder. When my laughter died down, we began to talk about anything and everything we could. Giggling like the little kids we were before the incident. But all good things must come to an end, after three hours of talking Izuku started fading away in particles of light signaling the end of the dream.

"What going on?" Izuku cried out, panicking at his disappearing body.

"I think you're waking up" I answered.

For some reason, Izuku started panicking even more and locked me in a hug.

"I don't wanna go, sis. Everything is too hard to bear without you. I just wanna stay here with you. I don't wanna go!" he cried out. His hug getting even tighter around me.

There was so much wanted to say, so much I wanted to do for him. I wanted to hold him, hug him, tell him everything was going to be alright, that big sis was gonna be there for him, but I couldn't do all of that. So I did what I could do for now and asked. "Izuku, do you still want to be a hero?"

He looked at me, confused by my question but answered. "Yes, I want to be a hero, I want to save people, I want to stop what happened to us from happening to anyone else, I want to be the one who people can feel safe around just from arriving at the scene and I want to be as strong as you are!"

I wanted to question why he chose me instead of All Might but there was no time. Only his face was left, the rest of his body already disappeared into white particles. "Then I'll give you that power. The power to become this world's greatest hero!" I said with flare. His head had disappeared before I finished my little speech so I wasn't sure if he heard everything I said or not but it didn't matter because when he wakes up ill be the start of his lesson on how to use Life Energy.

Izuku P.O.V

It was the crack of dawn when Izuku woke up and he wasn't quite sure why but he was crying. He didn't quite know why, since he didn't wake up in terror like his nightmares usually made him do. He did however feel like he had a super important dream but couldn't remember what it was about for his life. Disappointed, he got up, wiped his eyes, and was about to roll off the bed and begin another miserable day where he forced himself to smile and pretend everything was ok when a blue screen appeared right in front of him with a single question.

[Do You Want to Be a Hero?]

(Yes/No)

Izuku didn't know it at the time but his decision would change everything for better and for worse.