I have a philosophy when it comes to creating a novel. Create a world that you would want to end up in, so please don't torture your characters. Rape, abuse, kidnapping, and murder are not okay.  I've read so many transmigration book of people ending up in novels or even their own novel. If you create a world of violence and put your beloved characters through hell, torture, pain, and rape, I hope you end up in your own world so you can see how it feels. You're creating a world on its own like a parallel world. So please, people, be nice to your characters.