Nocturne Files
Explore the worldbuilding, civilizations, rifts, and hidden truths of Null Nocturne. This codex isn't an encyclopedia — it's the scattered records left by observers, each entry could change how you see destiny.
Codex overview
Recently added
Latest entries noted by observers
- The Ones Who Don't See
The overwhelming majority live their whole lives on the daytime map alone. Even with the thing that isn't a person standing in front of them, their eyes skip over it on their own, and afterward they say: I must be too tired.
2026.06.20 - YaoguaiFeatured
Yaoguai live on the reverse side of the city, but most of them are not monsters that pounce the moment they see a person. They have rules of their own, needs of their own, memories of their own, and some kind of relationship with this city.
2026.06.20 - The Academy at Night
There is a school in the city that opens only after midnight, its buildings hidden inside the city's second map. Anyone the earth-pulse has marked receives a notice of enrollment.
2026.06.20 - A Circle with a Piece Missing
After the talisman slip was torn off the lintel of the old house, a dark patch stayed on the wall—a circle with a piece missing, the gap always falling in the same place. The same figure appears on more than this one wall.
2026.06.20 - Pulse-ListeningFeatured
A very few people can hear the city itself—the earth-pulse moving, the old temples murmuring, the yaoguai speaking up. At the start they usually think their ears are ringing. It comes at a cost.
2026.06.20 - Qingcheng City and the Rivermag Line
A harbor city in 2065: a maglev line standing on newly filled land, oil still burning in the temples of the old quarter. The Rivermag Line was built along a Qing-dynasty river channel, 15 stations end to end.
2026.06.20
Featured entries
Recommended starting points for new readers
- YaoguaiFeatured
Yaoguai live on the reverse side of the city, but most of them are not monsters that pounce the moment they see a person. They have rules of their own, needs of their own, memories of their own, and some kind of relationship with this city.
2026.06.20 - Pulse-ListeningFeatured
A very few people can hear the city itself—the earth-pulse moving, the old temples murmuring, the yaoguai speaking up. At the start they usually think their ears are ringing. It comes at a cost.
2026.06.20 - Platform ThirteenFeatured
The last train on the Rivermag Line is 23:48. But on some nights, after the last train has gone, another one comes that is not on the timetable, and its terminus is Platform Thirteen, which exists on no route at all.
2026.06.20
Deep dive
Curated entry sets for advanced observers



