Five friends who are trapped in an ancient board game called SURRA without knowing the origins and rules of the game. They are trapped in a parallel world and face life-threatening terror. In order to uncover the mystery of the game, they try to find previous players.

After her writing career was ruined due to a scandal, Kay applied to a publishing company called Analogi. Unexpectedly, at Analogi, Kay met Bisma, the annoying CEO who always gave Kay a headache.