Designed by acclaimed architect Kitagawara Atsushi and completed in 1983, Mian Onkaku stands as a remarkable example of late 20th-century Japanese architecture. Located in the Akasaka district of Minato Ward, Tokyo, this distinctive structure ingeniously combines multiple functions including a shrine, residence, and office spaces. The building demonstrates Kitagawara's sophisticated approach to architectural design, seamlessly integrating spiritual and secular purposes within a cohesive spatial composition. Its thoughtful blend of traditional religious architecture with contemporary residential and commercial elements reflects the evolving needs of urban Tokyo during the 1980s. This notable work remains significant for architecture enthusiasts studying the period's innovative approaches to multifunctional design.