In the wake of the COVID-19 pandemic, the gaming industry has seen an explosion in popularity. One of the most popular games ever released is Mystery Maker, a VR RPG where players can create baffling puzzles in a virtual space and challenge other players to solve them. As a promotional stunt for the game’s upcoming sequel, eight real life great detectives have been hand chosen by Kurata Chikage, executive director of MegalodonSoft, to challenge each other to a match in a demo of Mystery Maker 2. Among them are Kamo Touma, a magazine contributor well known for his investigative work overturning false convictions, and his wife’s cousin Ryuuzen Yuki, a recently debuted mystery novelist. However, on the day of the demo event, the detectives are all drugged. When they awaken, they find their smartwatches are locked to their wrists and they are shown videos of their families and loved ones being held hostage. They are contacted by a Gamemaster, who tells them that if they wish to save themselves and their families, they must play a death game called “Delicious Death for Detectives”. As scheduled, the eight of them will play Mystery Maker 2’s demo, and the Detectives will challenge the mu*der puzzles created by the mu*derer. If the Detectives are not able to reveal the mu*derer and their tricks before the time limit, all players will be killed. However, if the mu*derer is exposed, both they and their hostages will be killed. And if a Detective makes an accusation but gets even the tiniest detail wrong, they will be mu*dered by the Gamemaster’s secret accomplice, the Executioner. Now the only way for the eight detectives to survive is to expose the mu*derer and Executioner lurking among them, even if they must risk their lives and those of their compatriots to do so. Which is an especially big problem for Kamo, because he’s the one who’s been chosen as the mu*derer!