A school of hopeful delight transforms into a cage of deaths.
The storyteller is found dead, with an unclear cause of death. They appeared to have a bullet wound, a tiara in their throat, punches on the head, and an explosion near all limbs. Most other students and staff escape, but a hooded figure lock everyone else from the inside and out.
Each trapped students are armed with their dexterity and murder weapons in an attempt to execute the killer they call "the Demon." There's no other way than to confiscate the key from them, and escape the campus alive or dead.
