Notes of the Rain God

When I woke up, I found that all of my characteristics as a human were awry, like a program with a bug; Just when I was at a loss, the system code-named "Cetacean" came and issued a task. If I could find "abnormal bodies" and record the strange events on them, write them in "notes" and upload them to "Cetacean", for every success, I would get a "fragment" of human characteristics; Just when I got all the "fragments" and became a complete person again, the world would never be the same again, just like a dream. Am I still me? I searched like crazy to find out what was reality and what was illusion, but the boundaries between the two gradually blurred, and the buildings made of reality collapsed and turned into desolate ruins.