The Classroom of Fifty-Six

Text RPG mystery game, The Classroom of Fifty-Six:

Class A-4, Grade 11, Huayuan Public High School in Baitiao City has 54 students and two homeroom teachers.

One day, the students in the class begin to disappear one by one...

An ordinary 25-year-old single office worker and mystery game enthusiast

gets into a car accident on the day the game goes on sale. When she opens her eyes again, she finds herself in Class A-4, Grade 11, at Huayuan Public High School. She is named Mikazuki Yoru, a "background character" with no portrait or name in the game's trailer.

With no knowledge of the game's script and only the information from its trailer PV to go on, can she survive to the end of the game (real life) and identify the real culprit?

Theme: Survive