Prologue Part 1: Students of Despair

15 elite students are trapped in a school named "Hope's Peak Academy".They're only way out is to kill their classmates without getting caught.If a murders happens, a Investigation then a Class Trial will occur.Class Trial is the time when they debate who is the culprit.If they got it right, Only the culprit is executed.If they got it wrong, Everyone excluding the killer are executed.Now, Who among the 15 will survive this bloodbath.