Ultimate Evil: Starting as a Scapegoat

Why are there two Song Jiajia? Please reply.

So many people died, and the country I wrote about didn't care much about it. Not even a province was mentioned.

It's good to watch, and the plot is put together without dragging on, but it feels a bit unfinished. Moreover, the ending of Fang Mo's character was unfinished and inexplicable. A good policeman was deliberately turned into a murderer and was imprisoned in a mental hospital, and finally committed suicide. I was speechless.

I have read the first 7 chapters and they are quite well written. I have some doubts. Is this a time travel?