Is writing fiction novel Haram in Islam? What about writing romance genre?

I intend to write a dark story, you know, a tragedy. Therefore there will be for sure bad guys in my story. There will be violence and bad language used. A lot of bad things will happen to the main character to make people sympathize with the character more. I have heard that you can't write about things like faashiha/fahish (abusive language and gambling, etc). My point is that if all I can write are good thing? That won't make anything interesting at all. Villains do like, gamble, kill and rape, etc. I have moral for the story and for that I have to put the main character in a cruel and harsh setting. Is that allowed in islam? Nothing I write will say anything against Islamic rules - like saying gambling is right, etc. What about the kind of clothes the character can wear? I want to make my characters cool! Specifically, female. I know that females should wear clothes that don't show too much skin. The thing is, I don't want my character to wear abaya in the story. It would be weird as my story isn't focusing on religion. It is focused on morals.