"It's not about winning... It's life-and-death! One by one, students stop coming to school, and rumors spread that a cursed video game is behind the disappearances. Mai Yashiro wants nothing to do with it, but then a mysterious console appears in her bag. A creepy voice gives Mai a choice: play the game or lose everyone she cares about. She chooses to protect her loved ones, but any sense of relief is short-lived. It turns out dying in the game has...

One day, Mai comes across a creepy game called Nightmare, and when a mysterious voice gives her a choice -- play the game or lose everyone she cares about -- she must put herself at risk to protect her loved ones by trying to beat the game.