Hiroeido Chunagon Main Store is a contemporary commercial and manufacturing facility located in Okayama City, completed in 2019. Designed by the Okikado Yuzo Design Office, this multi-functional building seamlessly integrates retail, workshop, and office spaces within a single structure. The building exemplifies modern architectural design principles while serving the practical needs of a traditional confectionery business. Its thoughtful spatial organization and functional layout demonstrate how contemporary architecture can honor heritage enterprises while accommodating modern commercial operations. The facility stands as a notable example of adaptive architectural solutions in contemporary Japan.