"Fifty-Six People Classroom"

Text RPG mystery and suspense game "Fifty-six Classroom": Class A-4 of the second grade of Shiratori City Public Huayuan Senior High School has a total of 54 students and 2 class teachers. Taking one day as an opportunity, students in the class began to disappear one by one... A fan of suspense reasoning games, an ordinary 25-year-old single OL, She was involved in a car accident on the day the game was released. When she opened her eyes again, she found that she had become a member of Class A-4, a sophomore at Huayuan Senior High School, named Mikazukiye. She was a "passerby character" who did not have a portrait or name in the game trailer. I don't know the game script at all, and only rely on the information from the game trailer PV. Can I survive the game (xian) to the end and find the correct murderer? Intention: to live