(Ruby's POV)

I was running through the streets of Vale. I was chasing some criminals that broke in a bank and stole a bunch of money. I got in front of them and slammed them into the ground. I heard people cheering.

Ruby: Let's get you two behind bars.

I saw some cop cars come up to me. The cops took the two criminals and put them in their cop cars.

Cop: Thank you Ruby for catching those guys.

Ruby: It's fine. The number one huntress has to help those in need.

I got a notification on my scroll. It said that there is someone in trouble in a nearby forest. I quickly rushed out the city of Vale and headed to the location.

(Time skip)

I was looking around the forest. I was in the right place, but I didn't see anyone or anything.

Ruby: Did someone already get here and help?

I looked around more and I noticed that a portal opened in front of me. I was really tempted to enter it.

Ruby: Might as well.

I ran inside the portal. I ran through to the other side of the portal. The portal closed behind me and I was still in the forest.

Ruby: That was a let down.

I started to walk around. I heard someone's footsteps. I quickly hid behind a tree and peaked out. I saw... dad?! He was in his Young Age clothes and in his muscle form. How is he like that? I thought he couldn't maintain that form anymore. I took a step forward to get a better look and I stepped on a branch, making a loud snapping noise.

(Y/N): Is someone there?

I came out of hiding.

(Y/N): Summer? Why are you wear those clothes? They look good on you.

He gave me a thumbs up. I guess I do look like mom.

Ruby: I'm sorry to say, but I'm not Summer and I don't know anyone named Summer.

(Y/N): Oh, sorry about that. You just remind me of her. Who are you?

Did I somehow time travel? If so, I can't tell him that I'm his daughter. It might make some kinda paradox. Wouldn't me being here already make a paradox?

Ruby: I'm no one special. I came out here because you are All Might.

(Y/N): I already have fans? I only became a huntsman a week ago.

I did time travel. I walked up to dad and poked him on the left side of his stomach. He looked really confused.

(Y/N): What are you doing?

He doesn't have his injury?!

Ruby: Nothing. Sorry.

I took a step back. So this is dad in his prime.

Ruby: I came out here to find you because I am a huntress. I want to learn from you. I admire you.

He started to laugh in his heroic voice.

(Y/N): That's very nice. I guess I could teach you a thing or two.

I always wondered how strong dad was in his prime.

Ruby: I want to fight you.

(Y/N): Are you sure about that? I am really strong.

Ruby: I'm positive.

(Y/N): Alright then. Just don't say that I didn't warn you.

(Readers POV)

This girl that looks a lot like Summer just asked me for a fight. I'm still going to hold back. I don't want to hurt her.

(Y/N): Ready when you are.

She pulled out a scythe. I noticed that it had my signature on it. How does she have that? This is the first time I ever met this girl. She dashed at me. She swung her scythe at me. I grabbed it in my hand.

(Y/N): Are you sure you don't know Summer? She also uses a scythe.

I threw her at a tree. She landed on the tree and jumped back at me. She fired a bullet at me. I grabbed it and broke it in my hand. She tried to attack me with her scythe again. I dodged and went to punch her. She turned into red rose petals and went behind me. That's the same as Summer's semblance. I turned around and tried to hit her. She blocked it and knocked me back.

Ruby: Come on All Might. I know you are holding back on me. Show me your full power.

Sparks of red lightning started to come from her body. Electricity started to come from her eyes and her hair spiked up.

(Y/N): No way.

I know this power. She has One For All?! How?! And she is using it at 100%!

(Y/N): So you aren't messing around anymore?

Ruby: I want to become stronger and uphold peace in Remnant! You are the only one that can help me with my dream!

Her dream is the same as mine. I can feel a connection with her, outside of us both having One For All.

(Y/N): Alright then. Let's start round two.

Rose petals started to surround her. Two clones made out of petals appeared. They rushed over at me. I jumped up and slammed them into the ground. They disappeared. The real one rushed over at me with blinding speeds. I tried to attack her, but she dodged and went behind me. Before I could turn around, she attacked me and launched me in the air. She jumped up and started to spin with her scythe. She hit me and I was sent to the ground.

(Y/N): You are fast.

I got up. She is way faster then me, but I am stronger. If I can get a few good hits in, I'm golden. She landed and looked at me. She made more rose petal clones.

(Y/N): You are good at dodging. So I'll just give you an attack you can't dodge.

I reeled my hand back.

Ruby: Don't let him attack!

The clones rushed over to me and started to attack me. I started to tank through the attacks and I punched. The clones got ripped apart as a hurricane made it to the real one.

(Ruby's POV)

I raised my arms up. The hurricane started to send me back. I was launched into the air as dad rushed over to me. He tried to punch me. I went for a punch too. We punched each other in the face and we both got knocked down.

Ruby: That hurt a lot.

I got up and so did dad.

(Y/N): You're pretty good.

Ruby: I won't lose to you!

(Y/N): My neither. You want to guess why?

(Y/N) and Ruby: Because I'm going to go Plus Ultra!

We rushed over at each other. We started to trade blows. We sent each other a flurry of punches. He grabbed my arm and tried to slam me down into the ground. I used my semblance and got out of his grip. He reeled his fist back and smoke started to come from it. He dashed forward at me. I did the same. We both smiled at each other.

(Y/N) and Ruby: SMAAAASH!

Our fists collided. Strong winds started to come from our punch. We were both sent back with our aura breaking.

Ruby: Man. You really don't pull your punches.

I got up slowly. I walked up to him and helped him up.

(Y/N): How do you have One For All?

I think I need to play dumb.

Ruby: What are you talking about?

(Y/N): Nothing. You are really strong.

He was still in his muscle form. I can't believe I got to fight dad in his prime. He was so cool.

Ruby: You really are the best.

I looked to see the portal from earlier appear.

Ruby: I'm sorry All Might, but I have to leave.

(Y/N): It's all right. I hope you learned something from our fight.

I made sure that dad could stand by himself. I waved at him and walked through the portal.

(Readers POV)

I saw the portal close. I sighed and caught my breath.

Summer: (Y/N)!

I looked behind me to see Summer running up to me.

Summer: It sounded like a fight was going on. Is everything ok?

(Y/N): Don't worry. Everything is fine. I was just teaching a huntress some things.

Summer: Ok.

She sighed in relief. We started to walked together.

(Y/N): Hey Summer.

Summer: Yeah?

(Y/N): Do you have any sisters?

Summer: No. why do you ask?

(Y/N): Just curious.

(Ruby's POV)

I saw that I was in the forest. I checked my scroll to see that it was the same time when I left.

Ruby: Thanks for the fight dad. I will keep the peace that took you years to make and make it better.

I looked up to the sky. I got a call from dad. I answered it.

Ruby: Hi dad.

(Y/N): Hey sweetie. I just got done taking a nap and I had the craziest dream.

Ruby: What was it about?

(Y/N): It was like we had a fighting match.

Ruby: Really? Who won?

(Y/N): I think it was a draw. My memory is a bit fuzzy.

Ruby: That must of been really cool.

(Y/N): It was. It felt like it actually happened. Oh, your mom needs me for something. Talk to you later, love you.

Ruby: Love you too dad.

I hanged up. I got a notification from Yang. She needs help with some Grimm attacking a nearby village. I put my scroll away and activated One For All.

Ruby: Good to see that my aura already recovered.

I dashed off and went to the village to help out Yang.

(What if: Ruby VS All Might end)