[DeepL Translation - needs review] Introduction to Volume 1: The members of the Eito University Mystery Novel Club, including Director Egami and Arisu Arisugawa, arrive at the Yabuki Mountain campsite for their summer training camp, only to find an unexpected situation awaiting them. Yabuki erupted, and the three groups of students who happened to be together were instantly trapped in the campsite, which had become an isolated island on land. In this extreme situation, a killer appears as if...
