Yuu, Mitsuki, Rei, Hajime, Eiji, and Haruka have entered the game called 'Rabbit Doubt', where all of the players are 'rabbits' in a group, and one of the players among them is randomly chosen to be a 'wolf' in the group of rabbits. Each round, the wolf kills a rabbit. Each round, the rabbit group tries to figure out which of the rabbits is actually the wolf in disguise and kill it. If a rabbit kills the real wolf, the rabbits win. If they're wrong, all of the rabbits will be killed. Who is the real wolf? And can they stopped it before the game is over...