So I'm writing two books and this one is about a monster hunter basically he's like John/Dean/Sam Winchester meets The Punisher. He's driven by vengeance and is very ruthless he's the kind of monster hunter that wouldn't think twice about killing humans. For example if he sees a woman or couple in trouble or sees something really bad he will snap and kill the bad guy in the situation regardless of whether the bad guy is a monster or human. He does however have some flaws he suffers from PTSD, alcoholism, and is abusive towards his love interest. He's very damaged and knows it and when he's not monster hunting he's trying to work on his issues. The main character was once a regular guy then his life was ruined. Ultimately because of a series of traumatic and very bad events he's gone from a nice guy to borderline nut case. The whole theme of the story is the constant debate as to what makes a man a man and what makes a monster a monster. Through out the series he does change but it's a very slow process. Is he too dark?