This is a flashback to when the main character was about 12 (same age as Killua).
Flashback:
I was running through alleyways getting closer to the city, as I could tell by the lights growing brighter. I made a swift turn onto a street that led me directly to where my victim was. I was on a time limit. But to make it quicker, I did my research and knew that they left work at 8:30 pm on weekdays, and walked home using the same route every time. This was so I could make sure that I would be exactly in the place where they would appear at 8:40 pm. It was dark enough so I could easily make this unnoticeable and efficient. Soon it would be 8:39; I was close. I darted to another alleyway to make a shortcut to my destination. I could see the end of the alleyway opening up to a deserted sidewalk illuminated by dim streetlights. There, the victim's presence was getting closer and I could hear the shoes hitting the sidewalk with each step. I stood in the shadows of the alleyway concealing my presence. As they were one step before they passed the alleyway, I appeared directly behind them and was about to take a hit to their vitals before something flashed in front of me and the man dropped to the ground before I even noticed. I was too confused to understand what happened. How did something make it there before me?! I was too quick, it wasn't possible because I couldn't feel anyone else's presence other than mine and the victim's. So how could something have gotten to the victim before me?! I was staring at the man blinking when something... no... someone was getting closer. I looked up to see a figure with a hood and hands in their pockets walking towards me. They looked about my height and I could see their sharp blue eyes staring at me intensely through the darkness. I shouldn't be scared, I'm an assassin and whoever this is doesn't know who they're dealing with. Smirking, I spoke up,
"Look, I don't know who you are, or why you just took out my victim before me, but I don't like you-". I was cut off without them saying anything. They disappeared in front of me like no one was ever there in the first place. I felt a shiver up my spine. Spinning around, they weren't behind me. Suddenly, there was a cold hand grasping my neck from behind. How did they move that quickly?! I was too shocked to move as I felt sharp nails piercing my neck slightly.
"Don't move. It's an order to get rid of anyone who gets in my way, especially other assassins." Their voice was distant and cold and I could feel their cold breath on my neck.
"Hey, how would you know if I was going to get in your way?! Put me down!" I kicked behind me at them but they dodged and pushed me to the ground. Managing to easily pin me down, I was officially restrained. Damn it. Who is this person? They were holding my arms down on both sides and kneeling on my legs. How was I going to get out of this?
"Hey, ok, I see how you thought I was going to get in your way, but just let me go and I won't get in your way jeez." I tried to turn my head so I could get a glimpse of them, but before I did, I heard a deep sigh, and felt them get off me and start walking away.
"Wait! At least say sorry for stealing my victim! And who are you anyway?!" I was so angry. I ran after them, but they disappeared into the darkness. Ugh! I'm such an idiot! Now I won't get my pay from my boss! I could've stopped them but my whole body was frozen, and for some reason, that instant, I felt scared for the first time.
End of flashback
(Can you guess who it is haha)
