Iida City, Central Japan Railway Company (hereinafter, JR Central), SUITEN Co., Ltd. (hereinafter, SUITEN), and Airbnb Japan Inc. (hereinafter, Airbnb Japan) have established the "Dual Residence Promotion Consortium." This initiative has been selected for the Ministry of Land, Infrastructure, Transport and Tourism's "FY2025 Leading Project Implementation Project for Dual Residence." With an eye toward improved access due to the future establishment of the Nagano Prefecture Station (provisional name) for the Chuo Shinkansen, the aim is to build a platform that fosters and creates a "co-creation population" where local residents and businesses, along with dual residents, jointly create regional value. To commemorate the establishment of this consortium, a kickoff event will be held on July 20, 2026 (Mon, Holiday) for local businesses, media representatives, and residents. ■ Background and Objectives: Creating "Reasons to Visit" and "Places to Engage," Designing Chemical Reactions Iida City is a region expected to see dramatic improvements in access to the Tokyo and Chubu metropolitan areas with the future establishment of the Nagano Prefecture Station (provisional name) for the Chuo Shinkansen. To seize this opportunity and promote sustainable town development, a mechanism is essential for players within the region and individuals with diverse external expertise to continuously interact and create chemical reactions. Through this consortium, the four parties will collaborate to create "reasons to visit" Iida City and "places to engage together" in the region. By approaching the "re-reading of regional resources" with urban talent and local residents, we will build a pioneering model for dual residence. ■ Beyond "Related Population": The "Co-creation Population" This Initiative Aims For Image of Co-creation Population According to the Ministry of Land, Infrastructure, Transport and Tourism's "Survey of Related Population Status" (announced June 27, 2025), the estimated