Avoiding the inevitable

My family was unlike most. My parents had been very secretive of their past. Still, I continued living a normal life. Until the day I found I had an...ability.
That day a disaster occurred, everything I once knew and loved, became nothing but an oblate sphere of rubble and memories. I thought I was the only survivor. I went around looking for others. I never expected to meet someone who shares my abilities. This mysterious guy with his tall height, muscular body, and deep voice, he was perfect.
I found we were an evolved kind of human.
I'm not saying we were the most powerful thing existing, no, there are always those stronger. Think about it like a food chain... People say owls, hawks, sharks, are at the top, but everyone knows that people kill hawks, owls, and sharks all the time.
Technically there is an infinite amount of creatures that would kill me and I can kill an infinite amount of creatures. So it all comes down to death, in this world at least. Which is why I must escape.