Kouju Sushi Honten is a commercial facility completed in 1988 located in Kariya, Aichi Prefecture. Designed by the Horao Yoshihiro Architectural Laboratory, this building represents a distinctive approach to retail architecture from the late 1980s. The structure showcases the design principles and spatial solutions characteristic of its era, blending functional commercial space with architectural thoughtfulness. As a sushi restaurant establishment, the building demonstrates how specialized culinary businesses were architecturally addressed during Japan's period of economic growth, offering valuable insights into the commercial design practices of that time.