A murder mystery told in one-minute clips — one for each day of the year — filmed specifically for the SEGA Dreamcast console. It tells the story of Nao Tsunoda, a 16-year-old schoolgirl who moves to Tokyo’s Grauenheim apartment complex. One day, Nao’s life turns into a nightmare when she suddenly discovers the headless corpse of her neighbor on the roof of the house — and a chain of brutal murders continues, becoming clear that a psychopath is hunting the apartment building's inhabitants.

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Lesson of the Evil
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K-20: The Fiend with Twenty Faces
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Nightbreed
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Demon Slayer: Kimetsu no Yaiba Infinity Castle
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Another Gantz
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Death Note: Light Up the NEW World
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Cosmic Princess Kaguya!
2026