Senna Akizuki wakes up to find herself in a dimly lit school. She is determined to find a way out with her friends. While exploring inside the school, she must uncover the school's gruesome past in order to escape.

Senna Akizuki wakes up to find herself in a dimly lit school. She is determined to find a way out with her friends. While exploring inside the school, she must uncover the school's gruesome past in order to escape.