You have been accepted into Hope's Peak Academy as the Ultimate Psychologist, but when you meet a certain despair obsessed girl and become trapped in a game where the only way to win is to kill one of your peers and get away with it, will you do to whatever it takes to survive?

Mukuro Ikusaba x Makoto Naegi. Mukuro Ikusaba spent her life living in the shadow of her twin sister Junko Enoshima. Clouded by her sister's despair, she first experienced light in the form of Makoto Naegi, but would it be able to save her from her sister's plan?