The Agricultural Cooperative Welfare and Recuperation Center "Aoki" is a notable example of 1970s hospitality architecture designed by Sosowa Sekkei. Completed in 1975, this accommodation facility is situated in Aoki Village, Shimoina District, Nagano Prefecture, showcasing the design sensibilities of Japan's post-war modernist period. The building exemplifies the era's approach to creating functional yet thoughtful spaces for communal wellness and retreat. Its architectural significance lies in how it balances utilitarian requirements with aesthetic considerations characteristic of the decade's institutional design philosophy.