Professor at Jeju National University, School of Architecture. He graduated from Dong-A University and earned his master’s and doctoral degrees from Kyoto University in Japan. He worked as a researcher at the Longevity Social Organization in Hyogo Prefecture, Japan, and as a manager of the Silver Division at Kyungnam Corporation. His specialty is senior facility planning, and his research focuses on community-based senior living environments. As a researcher on Jeju Island, he is continuously exploring the traces and values accumulated on the island and the direction of coexisting urban architecture. He is also trying to popularize architectural culture through numerous lectures and media articles. His books include Dwelling Spatiality in an Aging Society and Talking about Jeju Urban Architecture.