You were a new student at Hope's peak academy in the class, 78th. You were surrounded by people you didn't know, and they were just as confused as you were. You were just randomly invited here, your memories were erased and you had no idea what you were getting yourself into; a killing game. One of your acquaintances, Makoto Naegi, was a sweet, hopeful and optimistic boy, who always seemed to help you. However one day, he revealed that he was the mastermind. That's when everything changed.