The most prominent character in the 'Hell Girl' story is Ai Enma. She is a key figure in this rather dark and supernatural story. Additionally, there are those people who use her service, who are also kind of important as they drive the story forward with their grudges and requests for revenge.
In the 'Hell Girl Love Story', Hell Girl is most likely a main character. Her role in the story would be crucial as she is the link between the human world and the underworld. Then there could be other characters like a human couple. One of them might have been wronged in some way, like a woman who discovers her lover has betrayed her. She could turn to Hell Girl for revenge. But as the story unfolds, there could be a change of heart due to love, and this couple's story would be a major part of it. Also, there could be a spirit or some supernatural entity that has a connection to Hell Girl and is involved in the love - related events, either trying to help or hinder the love between the human characters.
The main plot of the fictional 'Hell Girl' is really interesting. There's this girl, Ai Enma, who exists in a sort of limbo between the living world and hell. People who have been deeply wronged visit a special website. They can enter the name of the person who wronged them. Ai will then consider their case. If she decides to act, she'll send that person to hell using her hellish powers. It also delves into the moral implications of such actions as we see different characters' stories unfold.
Since I'm not familiar with a specific 'Hell Girl Ren Story', it's hard to say for sure who the main character is. But if it's related to the Hell Girl series, it could be Ren herself. Maybe she's a new protagonist with unique powers or a special mission within the story.
The main character is Hell Girl herself. She is the one who carries out the task of sending people to hell.
Perhaps there are characters who are caregivers or family members. In a story centered around death, these types of characters are common. They might be the ones who are by the side of a dying person, and their actions and emotions can tell a lot about how the story views the process of dying. For example, they could be trying to comfort the dying person or struggling with their own feelings about the approaching loss.
One main feature is the concept of revenge. People seek revenge through the Hell Correspondence and Enma Ai makes it happen. Another is the dark atmosphere, with her spooky appearance adding to it.
The following novels were recommended for Hell Maiden: Hell Maiden in the Other World, I Have Hell, You Can't afford to offend me, Hell Puppet Master in Conan World, Hell Maiden Queen Elizabeth, Hell Maiden (Full Service), etc. These novels covered different plots and styles of Hell Maiden, and could be read according to personal preferences.
The main character is Hell Boy, of course. He is the one with the red skin and superhuman abilities. Another important character is Professor Bruttenholm, who raised Hell Boy. There is also Liz Sherman, a pyrokinetic, and Abe Sapien, an amphibious humanoid.
There could be many different types of main characters in the 'green hell story'. It could be a family who got lost while traveling through a remote green area. They would have to work together to overcome the challenges of this 'green hell'. It could also be a team of treasure hunters who thought they were going to find riches but instead found themselves in a dangerous and difficult 'green hell' situation. There might even be a character who is on the run from something and ends up hiding in this unforgiving 'green hell'.
Well, 'Hell Girl True Story' is centered around the existence of Hell Girl. She's like a dark avenger. Victims with grudges visit a mysterious website, and if they pull the string on the straw doll provided, the person they resent will be dragged to hell. It shows the dark side of human nature, how hatred can drive people to extreme measures.