I don't know for sure. Since we only have the title 'sierra day story', the main character could be someone named Sierra.
Given just the 'sierra day story' name, it's likely that Sierra is the main character. But it's also possible that there are multiple main characters and Sierra is just an important part of the day that the story is centered around. Maybe it's a story about a group of friends and Sierra has a significant role in what happens during that day.
The 'sierra day story' could cover a wide range of topics. Maybe it's a story about a celebration or a special occasion in Sierra. It could also be a story of discovery, where the main character in the story, perhaps named Sierra, discovers something new about herself, others, or the world around her. For example, it could be about Sierra exploring an old forest in Sierra on a particular day and having an encounter that changes her perspective on nature.
The main character is Sierra Burgess herself. She is a high - school student who is smart but not part of the popular crowd.
Most likely, the main character would be Laura Day. But again, without more details about this story, it's hard to be completely certain. There could potentially be other important characters in the story as well that interact with Laura Day and play significant roles in the plot.
The main character in the 'Delia Day Story' is most likely Delia Day herself.
Based on the title, it seems that Shay is the main character.
It was Lady Jane Grey. She was a learned and pious young woman. But due to the complex politics of the time, she was thrust into the role of queen for just nine days. Her story is one of political upheaval and personal misfortune in Tudor England.
The Courier is the central character in the New Vegas Sierra Madre story. They are led to this place full of mystery. Also, the Ghost People play a major role. They are not like normal humans and are a big part of the challenges and the overall atmosphere of the Sierra Madre. And there are some other minor characters who are related to the history or the current state of the Sierra Madre.
Without reading the 'first day jitters story', we can't be certain. But it might be a character like a transfer student. This student would be experiencing the jitters of walking into a classroom full of strangers, trying to find their place in the new school's social hierarchy, and getting used to different teaching methods compared to their previous school.
I'm not sure as the title doesn't give that away. It could be anyone from a young student to an elderly person.
Most likely Chester is the main character since it's called 'Chester's Day Story'.