Okutsu Onsen "Hanabijin no Sato" is a multifunctional facility completed in 1999, designed by architect Hirofumi Sugimoto of Keikaku Kankyo Architecture. Located in Okutsu Town, Tomata District, Okayama Prefecture, this structure seamlessly integrates social education, exhibition, and commercial functions. Built within the scenic hot spring region, the facility reflects thoughtful architectural planning that harmonizes with its natural environment. The design demonstrates a sophisticated approach to creating community spaces that serve educational, cultural, and economic purposes while respecting the traditional character of the historic onsen area.