Record-breaking snowfall, a catastrophic crime scene, and a mansion whose blueprints don't make sense: a hiker's bloody journal is the only clue that can solve the mystery. What happened to the victims, where's Obihiro Manor's missing floors, and most crucially, who or what killed them?

Issei Haramoto, founder and guitarist of Secret Prose, struggles to make a name for himself at The Montauk, a venue for amateur rock bands to learn the tools of the trade, and a hot spot for agents to sign hopefuls to the most famous records in Japan. While torn between the talents of other bands...