"Those who do not participate or fail in the games will die" - this is how the games of life and death began in the world of the social network Real Account. Ataru Kashiwagi is determined to survive the horrific events for his followers, including his beloved sister Yuri. However, in the next game, his past catches up with him, and danger looms from the outside as well - the servers of the SNS are set to be shut down soon.