In a middle school in Shishibone city, Tomohiro Miyajima and his friends are engrossed in their studies until they decide to create a fake curse, 'Ohone-sama's curse', for thrill and money. The school buzzes with fear as they spread tales of this curse, leading to a surge in donations. However, when they receive a large sum with a sinister request, chaos unfolds. Bullying and crimes spike, enigmatic events unfurl, and Tomohiro's group is thrust into an unexpected investigation. What was meant as a harmless prank spirals into a perplexing mystery where the living defy nature, secrets unravel, and familiar faces reveal hidden truths, leaving them questioning the inexplicable turn of events.