Seiho-gama is a kiln and pottery studio based in Iriomote Island (Uehara, Taketomi-cho, Yaeyama District), Okinawa Prefecture. Using local clay harvested from the kiln's own garden, the artists create work inspired by the lush nature of Iriomote Island. Their distinctive black glaze, made from locally sourced suzu-ishi stone, produces deep blue-black tones with crystal formations reminiscent of a starry sky. Their repertoire also includes a blue glaze evoking the Yaeyama coral reefs, vessels with carved mangrove (Yaeyama-hirugi) motifs, shisa lion figurines, and traditional Okinawan sake vessels.