Histoire
Hint: Please give it your all, as if you are prepared to throw your life away. Once you see this dream, you will never wake up—the curtain rises on a "Nightmare" game that never ends. "The participants for the Nightmare Game have all assembled." Haruto, an ordinary high school student, wakes up to find himself trapped inside a nightmare. An eerie announcement echoes through the building: if he cannot escape this unfamiliar shopping mall by dawn, he will experience a physical agony more terrifying than death.
Synopsis via AniList (en anglais).
