Norikazu, a computer prodigy, unearths a WWII-era machine buried beneath his home. Triggering the device catapults him and companion Midori into a simulated nightmare realm teeming with grotesque entities driven by carnal violence. The computer houses the tormented spirit of a scientist driven mad after witnessing wartime horrors—including his wife’s assault by colleagues stealing his work—igniting interdimensional warfare across timelines.

Forcing alliances with enigmatic figures like Eganko, an elf-like wanderer drawn to him romantically, and Kingan, a depraved monster prince enslaved by Midori, Norikazu’s efforts to return home collapse when their reality falls under the machine’s demonic control. Thrust into a temporal race to avert dystopia, he confronts history’s horrors, from Hiroshima’s atomic devastation to supernatural incursions blurring past and nightmare.

Norikazu’s habitual entanglement in casual liaisons persists despite his bond with Midori, who suppresses her anguish to appease him. Eganko’s misfired love serum spirals their group into a volatile four-way entanglement, amplifying tensions. His ethically ambiguous choices fuel a narrative weaving body horror, psychosexual tension, and macabre humor, anchoring the story’s chaotic momentum.

Though his origins remain obscured beyond technical brilliance, Norikazu evolves from survivor to time-meddling strategist. Clashes with pawns of the machine’s influence—a possessed academic, a relentless hellspawn—underscore his reluctant role as a fulcrum in supernatural reckonings, balancing survival with repairing ruptures in reality’s fabric.