Super Cero Fighting

I am Zero, the ace killer of a killer organization. I have no name, only a code name. Since I was a child, I have been imprisoned on a desert island with dozens of children my age. An old man was responsible for teaching us fighting skills and assassination techniques. Until that day, I stood out from these dozens of children... And now, I'm going to die, maybe this is also a kind of relief, but I really can't reconcile myself to it, haha, what a warm light...