I got up and went to him.
Me: Sensei you know what you asked me to do? I need to go to the lab. Now.
He was lost, but he understood.
Aizawa: I'll get the keys.
I took a blood sample, left the room and went outside the dorm. He soon arrived.
Aizawa: Let's go.
We walked, fast almost running to the school laboratory. I went in and already got the materials. I went into the computer, set up the machine and put Eri-chan's blood on it.
The computer printed out her DNA order.
Me: Do you have a knife or blade?
Aizawa: What? What for?
Me: Do you have it or not?
Aizawa: No.
Me: Where, where...?
I said opening the drawers. I found a little knife. Almost no blades, but it will do. I take it and cut my hand
Aizawa: What are you doing?!
Me: It's part of the test.
I drop my blood into a test tube, and put it in the machine. After some time my DNA was printed too.
I took my paper and Eri's. Now I'm almost right. I dropped the papers and started typing very fast on the computer. This process takes longer than the other. So I took the opportunity to cure my hand, clean up the laboratory where I had messed up and drink some water
Aizawa: It's over.
I went to see and I almost had a heart attack. Now it's final.
Me: Sensei, I need to see Eri asap tomorrow.
Aizawa: Did you discover something?
Me: Yes, something big, but I'm only going to talk in her presence.
I closed everything on the computer, took the papers and samples of my blood and hers. Our blood cannot be dropped anywhere. Especially hers.
I will burn them. We left the laboratory. Sensei keeps glaring at me.
Me: Are you hungry? To have that face.
He did not answer. We arrived at our dorm. Shouto and Izuku came to ask me what had happened, I just replied that I had a job with sensei.
The next day in the middle of Mic sensei's English class, Aizawa, Eri and Mirio appeared at the door.
Aizawa: Excuse me Mic, I need Keiko to come with me.
Me: Can Izuku come along?
Aizawa: That depends on you.
Me: Mic sensei?
Mic: Go ahead.
We left the room.
Izuku: What did you think of UA Eri?
Eri: It's big and there's a lot of people
Mirio: It's true!
Aizawa: Come in
He said opening a room door.
Aizawa: Please Keiko.
I go to Eri and sit beside her.
Me: Eri, when we first met you said I looked like someone you know. Who would it be?
Eri: My...mother
The boys were surprised. I already started to cry.
Eri: Sorry if I said something wrong. Do not Cry
She is really worried about me.
Me: Eri I have news for you it's something good.
Eri: What?! She said excitedly.
Me: Last night I found out something about you, I think you'll be happy to know you have a family.
Eri: A family?
Me: Eri, I'm your Sister.
I said smiling. They were all in disbelief.
Me: Your DNA and mine match and you said I look like your mother, so it was just connecting the dots.
Aizawa: Are you sure?
Me: Since when do I make mistakes in analyzing data?
Eri: Does that mean you and Mr Deku are my family?
Me: That's right Eri. How about a hug?
She jumped into my arms. Happy, smiling. Mirio and Izu started to cry, I don't think they ever saw her smile. Her Quirk activated.
I hid her horn, wanted to test something. After almost 30 seconds I had no effect. As I studied her blood, I canceled her quirk.
Me: And I just found out one more thing.
They looked at me in surprise. I pushed Eri away a little, stoppingthe hug.
Me: Your quirk doesn't work on me. It was activated the moment you hugged me and we were in direct contact, even so I had no effect. And besides I can disable it.
Izuku: That doesn't make sense.
Me: It actually makes a lot of sense, but it's going to take a lot of work to explain.
Aizawa: I need to talk to Nezu.
Me: Sensei, I want to know everything you do with her, and you'll need to let me know before doing anything else. As I am her sister, and I am her only family, I am responsible for her. Not to mention that I'm almost 18 years old.
Aizawa: Let's talk about it
Me: There's nothing to talk about. Hey Eri how about you have dinner with Deku and our friends today?
Eri: Can Mirio san go?
Me: If he's free, he can!
Mirio: I'll be there.
Me: So see you later.
I give her a little kiss on the forehead. And I leave the room with Izuku. You can't imagine how great the urge to cry is.
I swallowed the tears and went back to class. In between classes. I told everyone.
Me: Guys!
everyone looked at me
Me: Thanks for the attention. Today we're having a visit for dinner.
Iida: Who?
Me: Eri-chan is having dinner with us and Mirio from the Big Three.
Uraraka: Eri-chan!
Sato: What's the menu?
Me: Yes, we have to see this.
Izuku: She says she likes love apple!
Sado: I'll do a bunch!
Looks like they got excited. Aizawa sensei got in the room to end the mood.