a recurring club night held at a small bar venue in the koenji neighbourhood of tokyo, now at its twentieth volume. the night runs a main floor covering darkpsy, goatrance, hi-tech, and uplifting, alongside a lounge floor with a separately programmed set of djs. the format is a late-night single-venue gathering with a consistent cast of local and scene-connected players returning across volumes.
the series is organised under the koenji cave banner, which takes its name from the venue itself, a long-standing spot in the koenji area known as a home for underground electronic and psychedelic sounds in tokyo.