There could be multiple main characters. The ghost, of course, would be a central figure. There might also be a character who is the object of the ghost's love, perhaps a human with an open mind or a special ability to perceive the ghost. Additionally, there could be side characters like friends or family of the living character who play a role in either accepting or rejecting the relationship. They might react differently to the idea of a love story involving a ghost and the strange 'atop the fourth wall' situation, which could add conflict and depth to the story.
Maybe the main characters are the ghost, who has some special qualities related to the fourth wall concept, and a human or another supernatural being. The nature of their relationship and how they interact would depend on the specific rules of this unique story world. For example, the ghost could be a friendly spirit trying to communicate love across the fourth wall - like boundary to a living character who is initially unaware or afraid.
Since I don't know the exact story, it's hard to say. But it would likely be the ghost and the person they fall in love with.
I'm not sure specifically as it could be a very unique or self - created concept. It might be a love story that somehow involves a ghost and the idea of being 'atop the fourth wall', perhaps a story where the ghost is in a unique position related to a fictional boundary like the fourth wall.
I haven't read this 'Atop the Fourth Wall: Amazing Ghost Stories' directly. However, in ghost stories, there are often common themes like revenge, unfinished business, or lost love. So perhaps in this collection, there are ghosts who are seeking revenge on those who wronged them in life. Or maybe there are ghosts who are trying to find their long - lost loves. Another possibility is that the stories are more about the psychological horror of believing in ghosts rather than the actual ghosts themselves, like characters slowly going mad because they think they're being haunted.
One aspect could be that the stories might feature unique types of ghosts. For instance, there could be elemental ghosts like a fire - based ghost that leaves a trail of heat wherever it goes. It could also have stories where the ghosts have a connection to a specific object or place, like a haunted locket or a cursed well. The settings of the stories might vary widely, from old, spooky mansions to modern - day city apartments.
Without more information on 'the ghost love story', it's difficult to name the main characters. However, it could be a pair of star - crossed lovers, one of whom has passed away and become a ghost. Maybe there are also some side characters like a psychic who tries to help or a villain who wants to keep the lovers apart.
I'm not sure who the main characters are in the 'War of the Wall Story' as I don't have more context. It could be leaders of the opposing sides in the war over the wall, or ordinary people who are affected by the wall and take a stand.
Since I don't know the exact 'the wall short story', it's hard to say. But often in stories about a wall, there could be a builder of the wall, someone who is trapped by the wall, or a person who is trying to break the wall down.
Since I don't know the exact 'the long wall story', it's hard to say who the main characters are. They could be the builders of the wall, if it's a story about construction. Or perhaps people who live near the wall and are affected by it.
Not having full details about the 'the girl in the wall story', we can assume the girl is a main character. There could be other supporting characters. For instance, if it's a mystery - type story, there might be a detective - like figure trying to solve the mystery of the girl in the wall. Or if it's a fantasy story, there could be magical creatures that are either helping or hindering the girl's situation in relation to the wall.
Since I haven't read it, I can't say for sure. But it could be a couple, perhaps a man and a woman.
I don't really know as the title doesn't give any hints about the characters. It could be a sailor and a ghost, or a fisherman's daughter and a spectral figure.