I would also recommend 'Preacher' by Garth Ennis. It's a very dark and violent comic novel that follows a preacher who has been imbued with a special power. It's full of dark humor, religious satire, and explores some very gritty and controversial themes like morality, power, and the nature of good and evil.
'Hellblazer' is a good example. It follows the adventures of John Constantine, a cynical and often morally ambiguous magician. The stories are filled with dark magic, demons, and Constantine's attempts to navigate a world full of supernatural threats while also dealing with his own personal demons and addictions.
Dark comic novels usually have a darker color palette in their art and a more somber mood overall. They are not afraid to show the seedy side of life. For instance, in a dark comic novel, a city might be depicted as a place full of crime and decay. Regular comic novels, on the other hand, may present a more idealized view of the world. The humor in dark comic novels is also different, often being more black humor that plays on the darker aspects of the story, while regular comic novels may have more slapstick or family - friendly humor.
One popular dark comic novel is 'Watchmen' by Alan Moore. It's a deconstruction of the superhero genre, exploring complex moral and political themes in a dark and gritty setting. Another is 'The Sandman' by Neil Gaiman. It delves into the world of dreams and nightmares, filled with dark and often disturbing characters and stories. And 'Preacher' by Garth Ennis is also well - known. It's a dark and violent tale that combines elements of the Western, horror, and religious satire.
Here are a few recommendations for the novels that had completed the anime:
1. " The Daily Life of a Beautiful Manga Killer ": The protagonist is a transmigrator who makes a living as a killer. His character is evil and chaotic. The plot of this novel was full of ups and downs, and it was full of dark charm.
2. " Night Ranger ": The protagonist was a transmigrator who was reborn. He worked hard to accumulate strength in a world that was about to face a cataclysm and change the desperate world. This novel had once attracted a lot of attention on the Internet, so the quality was definitely not bad.
3. [The Inescapable Darkness: The protagonist reincarnates as the daughter of the Earl's family in the novel she read before, facing the fate of destroying the Earl's family.] The novel was full of dark atmosphere and it was thrilling.
I hope that the above recommendations can satisfy your needs for the dark anime.