RWBY x Bioshock

Rapture

Ebony Pov:

I was walking with my little one on my back through Rapture. It was silent like it always is, with just the noise of my little one drawing in his coloring book as I walked with my heavy diver boots hitting the ground. 

Little one: Big sister do you want to see my drawing?

Me: Sure, what did you draw?

My little one reached forward and handed me his coloring book while sitting in my cage on my back. I reached over my back and grabbed the coloring book and looked at his drawing. 

(AU) The one on the right.

I looked at the drawing and smiled under my helmet then handed it back to my little one. 

Me: That's a nice drawing, you should be an artist.

Little one: Really?

Me: Yeah. 

Little one: Thanks!

I smiled and continued walking through the hallway made of glass. I kept walking until we reached a dead body. 

Little one: OOOO! Look big sister food!

Me: I know, I know, let me get you down.

I reached behind me and picked up my little one and carefully placed him on the ground. Once he was on the ground he skipped over to the dead body and got out his syringe and put it inside the dead body. 

While he was taking the blood from the dead body I kept watch from any splicers who might want to take him for his Adam. Unlike little sisters, my little one could take anyone's blood and his body would make adam from them. That was his way of being fed, while at the same time my way as well. So I had a never-ending supply of adam. Which also made him a big target. Sadly my little one is the only one of his kind due to rapture falling apart before more little ones like him could be made. My bond with him was very strong and if he was to die so was I. I was hand-picked out of a dozen other girls to be chosen to be his big sister and when I was chosen I was happy. Unlike the other big sister who were brainwashed to protect their little sisters I actively chose to protect mine and would with my life to my last dying breath. I was given the option to live on if my little one was to ever be killed or due to any reason. But I chose to be killed if my little one would die. To me, I wouldn't be able to do my only job anymore. My mother was the doctor who was in charge of this project and I also helped her every now and then. I was so happy for her when she told me she was able to create my little one. She was going to pick someone else to be his big sister, but I grew a close bond with him, before the program and volunteered to be his big sister. I still remember how proud my mother was and how happy she was seeing how strong our bond was. 

Flash-Back:

Mother: I'm so proud of you honey. 

My mother hugged me tightly and I hugged her back. 

Me: Thanks mom, I am too. 

Mother: I can't wait to see how strong your bond grows with him, and I know you will keep him safe.

Me: Of course to my last dying breath.

Mother: That's my girl, now go play with your little one.

Me: Alright, I'll talk to you later. 

I walked off into the other room to play with my little one. Not knowing that was going to be the last time I ever would be able to talk to my mother ever again. 

While he continued to collect blood I heard a few splicers coming out way. My diving helmet light turned red and I immediately took care of the splicers. I used my telekinesis and threw one at a table then stabbed them in the neck. I light the next two on fire killing them, then I froze the last one and snapped his neck killing him. Once all the splicers were dead I walked over to my little one once he finished collecting blood from the dead body. I picked him up and placed him on my back in my cage. 

Little one: I got so much blood, my tummy is full. 

Me: That's good, we should head back to our room before a big sister shows up. 

Little one: Ok

I started to walk back to our room while my little one pulled out his coloring book and continued coloring. While on the way there I walked by a big daddy. He didn't care for me walking by. But I found it cute when my little one waved at his little sister. It was rare, but it wasn't uncommon for my little one to play with little sisters. But it wasn't very often due to most of the big daddies didn't like it when my little one would get too close to their little sister. Especially the big sister who have tried to steal my little one from me several times. Making me have to kill them. After we based the big daddy we made it back to our room. But then suddenly a bright light came out of nowhere and I got ready to fight whoever or whatever it was.