In the 'book of fire side stories', the main characters could be quite diverse. One could be a storyteller himself, who travels from place to place sharing his tales and in the process becomes a part of the stories. There might be a group of children who discover a magical doorway in an old attic and they are the main characters as they explore the strange new world on the other side. Also, there could be an old hermit who lives in the mountains and holds the key to a great mystery that other characters are trying to solve.
I don't know for sure as I haven't read it. But it could be characters from the original book series that Book 3 belongs to. Maybe the hero who has to face the challenges related to fire.
Since I haven't read it, I can't say for sure. But they could be new characters introduced specifically for the side story, or they might be secondary characters from the main 'book of murder' story who get more focus here.
The main characters are Tony, a former member of the Jets gang. And Maria, who is the sister of the leader of the Sharks gang. Also, there are Bernardo, the leader of the Sharks, and Riff, the leader of the Jets.
The main characters are Tony, Maria, Bernardo who is Maria's brother and the leader of the Sharks, and Riff who is the leader of the Jets.
There are Tony, a guy with a past in the Jets. Then there's Maria, a young and passionate girl who is related to the Sharks through her brother Bernardo. Also, Riff, who is a key figure in the Jets and helps drive the conflict between the two gangs. These characters play crucial roles in the story, with Tony and Maria's love story at the center and Riff fueling the gang - related tensions.
I don't know the '340 days side stories' well enough to name the main characters. But usually in a story, the main characters are the ones driving the plot forward, so they could be the ones facing the most significant challenges or having the most growth during the 340 days.
It might be an old storyteller who is the central figure. He knows all the tales of the east side, from its founding to the present day. He passes on these stories to the younger generation, keeping the history and culture alive.
In 'kuroshitsuji book of atlantic side story', Ciel Phantomhive and Sebastian Michaelis are the key characters. Ciel, a young noble with a dark past and a strong will, and Sebastian, a demon bound to serve Ciel. Their relationship is central to the story, with Sebastian protecting Ciel and Ciel using Sebastian's powers to achieve his goals in the events related to the Book of Atlantic.
The main characters in 'kuroshitsuji book of circus side story' are Ciel and Sebastian. Ciel, a young noble with a dark past and a strong will, is on a mission. Sebastian, a powerful and sophisticated demon, is bound to Ciel by a contract. Together, they navigate the strange and often dangerous world of the circus in this side story. Their interactions, with Sebastian's loyalty (albeit in a rather complex way) to Ciel and Ciel's reliance on Sebastian's abilities, form the core of the narrative.
One interesting story might be about a magical journey through a forest filled with talking animals. Another could be a tale of a brave hero who overcomes great odds to save their village from a mysterious danger. There could also be a story about a family's discovery of a hidden treasure.