Well, without having read the 'Francesca's Party' novel, we can only speculate. Francesca is surely a main character. There might be an old acquaintance who shows up at the party and brings back memories or secrets. There could also be a love interest for Francesca, either someone she already knows or a new person she meets at the party, and their relationship could be a significant part of the story.
Since it's called 'Francesca's Party', Francesca is probably a central figure. There may be a best friend character who helps her with the party preparations. And perhaps there's an antagonist, like a rival or someone who tries to disrupt the party, which would make for an interesting story dynamic.
I haven't read the 'Francesca's Party' novel specifically, so I'm not sure about the main plot. It could be about Francesca hosting a party and all the events, interactions, and dramas that unfold during it.
One of the main events is her participation in various social functions where she meets different people. Another is her encounters with potential suitors which shape her view on love and marriage.
I don't know as I'm not familiar with this particular novel. But typically in a dinner party - themed novel, there could be the host or hostess as a main character.
I don't know the exact characters as I haven't read the book. But there would probably be the party girl herself as the main character. There might also be her friends who she parties with, and perhaps some love interests she meets at parties.
Since I haven't read 'the after party novel', I have no idea about the main characters. But usually in a novel, the main characters are those who drive the story forward. They could be the party organizers, or some special guests who have their own stories and motives.
The Francesca Cahill novels often feature a strong female protagonist, complex mysteries, and a richly detailed historical setting.
I'm not sure specifically as I haven't read this exact novel. But usually, there would be the character who gets kicked out. And there might be the leader of the hero's party who makes the decision to kick them out.
In 'I Quit the Hero's Party' novel, the protagonist who decides to leave the party is a key character. There might be a leader in the hero's party who has a particular relationship with the quitting character. Maybe there are also some side characters who are friends or foes of the main character. These characters would contribute to the story's development, whether it's through their reactions to the quitting or their interactions with the main character as they pursue their new path.
One main event is her introduction to society and the start of her search for a husband.
The main characters in 'corpse party visual novel' are numerous. Ayumi Shinozaki, as I mentioned before, is a central character. She is quite headstrong. Satoshi Mochida is there to balance her out with his more cautious nature. Yuka Mochida, being Satoshi's sister, is a character who needs protection in this dangerous environment. Naomi Nakashima is another character. She has her own personality traits and relationships within the group. These characters' interactions, fears, and decisions are what drive the plot forward as they struggle to survive in the nightmarish school setting.