Do you have any recommended doujin novels that are based on sadistic and killing characters?

I've seen " The Original Form of Murder: Who Am I " and " The Original Form of Murder: Doomsday ", please do the rest!!! Mary Sue could do it too!
[PS: It's best if Brother A and Sister D form a couple, or Brother A has a serious sister-con certificate.]

Answer 1

I recommend the following books:
1. Gwynn Spider: I'm From the Original Form of Murder: The story of the protagonist's second transmigration to the Marvel World and becoming Spider-Man Gwynn.
2. "Prototype of Murder: Sweeping Marvel": The protagonist Lin Feng has the ability to devour and assimilate, and his adventure in the Marvel world.
3. "From the original form of torture to immortality": The story of the protagonist fusing multiple viruses and adventuring in multiple worlds.
I hope you like this fairy's recommendation. Muah ~😗