Disordered Person Says

My name is Chen Du, and I am a person without a past. My memory began three years ago, when I woke up in the morgue of an abandoned hospital, holding a blood-stained note in my hand, which said: "Rule 1: You are no longer a human being." I was walking on the edge of madness. In my world, there was no good or evil, only "interesting" and "uninteresting" rules.