Quick Transmutation: She was driven into madness after being transformed into cannon fodder

Introduction: After Lin Qingqing had been in prison for two years, she originally thought that her soul would disappear, but she did not expect that she would become a missionary and need to counterattack for the cannon fodder who died tragically. In order to survive, Lin Qingqing began a hard working career. Counterattack, abuse of scum, growth... and getting stronger and stronger, it seems that it is not unacceptable. Is that why there are so many weird things in the mission world? Actually want to save the world? Lin Qingqing felt like she was going crazy. (The heroine was an ordinary person when she was alive. She will be weaker in the early stage, and then she will gradually grow up, become stronger and stronger, and her methods will become more and more ruthless)