Weak and Helpless but Killing Indiscriminately (Setting)

This article was stopped for a long time due to my illness, graduation project, internship and job search. Firstly, I was not familiar with the previous plot, and the writing was very rusty, so I could not guarantee the frequency of updates. Secondly, I felt very sorry for everyone. When I stabilized, I had already stopped updating for two months. If I delay it for another month, it would become a free article for me to write slowly, so I decided to [Update slowly after solving v]. Because I also like reading novels, and I understand that everyone wants to know the truth and ending of the story after reading the opening chapter, so I put the settings I made before starting the article here. Then I would like to express my apologies to everyone again. [The solution to v should be in August. After the solution to v, it will be updated but the frequency is not guaranteed. I just don't want to cheat the article and I don't want to be stuck in v. At most, it will be two or three chapters a week orz] Intention: Kneel on the keyboard to apologize to the adults