Perhaps its special because of its unique take on the paranormal genre. It could offer a fresh perspective on things like haunted houses or psychic abilities.
I haven't read the 'ordem paranormal graphic novel' specifically. But generally, a graphic novel combines visual art and storytelling. It might have unique characters, an interesting plot, and captivating illustrations.
The main distinction of porn with a story genre from regular porn is the presence of a coherent narrative. Regular porn often jumps straight to the sexual action, while the story genre tries to add some kind of story framework around it. But in the end, both are adult-oriented and feature explicit sexual content.
Well, it's hard to say for sure. The concept of 'porn-like' is quite subjective. Some might consider certain novels with excessive sexual descriptions as such, but it depends on individual perspectives and cultural standards.
In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.