Josai University's Seiko Kaikan, completed in 1992, stands as a notable example of contemporary institutional architecture in Saitama Prefecture. Designed by the renowned firm Kume Sekkei, this versatile facility seamlessly integrates administrative offices with a theater and performance hall. The building demonstrates thoughtful architectural planning, accommodating the dual functions of university operations and cultural events. Located in Sakado on the expansive Keyaki-dai campus, Seiko Kaikan reflects the design principles that characterize Kume Sekkei's work, balancing functionality with aesthetic consideration. The structure serves as an important cultural and administrative hub for the university community.