Nakagusuku Castle (Nakagusuku-jō)

Nakagusuku Castle (Nakagusuku-jō) is a Ryukyuan gusuku fortification located in the village of Kitanakagusuku on central Okinawa. It is described in the supplied sources as the best-preserved example of gusuku ruins, featuring six courtyards and characteristic stacked stone walls. The site was designated a National Historic Site in 1972 and was inscribed in November 2000 as part of the UNESCO World Heritage listing "Gusuku Sites and Related Properties of the Kingdom of Ryukyu." The supplied audiovisual record (a 1988 home-video compilation of Okinawa life) lists the ruins as a filmed tourist/location segment, indicating its visibility and accessibility to visitors at that time. The supplied research notes and sources contain no accounts of hauntings, ghost sightings, named spirits, or other paranormal phenomena tied to former residents of Nakagusuku Castle. Likewise, no folkloric traditions, investigator reports, or interpretive theories regarding supernatural activity at the castle are present in the provided materials. Because the available sources focus on the site's architectural, historical, and cultural significance and include no primary or secondary claims of paranormal events, this dossier records the absence of reported phenomena in the supplied corpus rather than asserting any unverified legends.