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?

"You fool! Everyone will get consumed by despair and you won't do anything about it." A young man, named (Y/N) Nostra, set out his goal to graduate at Hope Peak Academy to set his life. He always wanted to use his talent for right things and restore the hope and faith of the world from things such as corruption and greed. But what happen if (Y/N) were to put in killing game with 16 of peoples, who also desired to get out of academy as soon as possible? Will (Y/N) survive? Or will he become one of victims?