I Will Be the God of Killing in the End of the Laughing Epidemic

Are There Any Novels Similar to Crying Sorrow and Blood Cross?

Blood Cross Fanfic/high-Quality Cruel and Cold Doomsday Novel

I would like to read a book similar to "Blood Cross I Have a Radar System". Is there anything about the Blood Cross? I really like to read this kind of fan fiction, or the kind of cruel and cold doomsday novels. The protagonist is not a virgin but still has morals.