In a quiet Japanese city, a group of students finds themselves drawn into a macabre game of survival after receiving a mysterious message inviting them to participate in a challenging contest. What starts as a simple pastime quickly takes a dark turn when they realize they are trapped in a world where the rules are defined by a divine and capricious entity. Each round of the game is designed to test their ingenuity, morality, and ultimately, their lives.
As the participants struggle to escape this nightmare, tensions rise, and alliances form and break. However, not everyone is willing to play fair; some will be swept away by desperation and hopelessness, revealing the worst of human nature in extreme situations. The main characters, each with their own backstories and motivations, must confront their inner demons while trying to unravel the mystery behind the game and its true intentions.
As the competition progresses, the struggle begins not only to survive but also to maintain their humanity in an environment where betrayal and sacrifice are commonplace. With unexpected twists and a chilling ending, this story explores the limits of morality and desperation, prompting viewers to question how far they would be willing to go to survive.