you wake up,being in a lab,you begin to breath,you are a black liquid and you form yourself a body,you see a men,he looks like a doctor or Scientist or boss,he created you "Hello. Your name is s-b17. Your mission is to kill the people I will show you. You are a weapon. You are Immortal. You can form yourself in different things or bodys. I am your master I created you in that Lab."