The Ministry of Foreign Affairs breaks the architectural pattern of the former Manchukuo capital. While neighboring government structures adopted the "Imperial Crown" style—topping concrete bodies with heavy, curved Asian roofs to symbolize Pan-Asian unity—this building looks resolutely toward the West. Designed by the French firm Brossard Mopin, the structure employs the clean lines and imposing mass of Art Deco-influenced modernism. This stylistic divergence served a specific political function. As the agency tasked with securing global recognition for a puppet state, the Ministry required a headquarters that spoke the visual language of established European diplomacy.

The building operated as a stage set for international legitimacy. Behind its beige brick facade and simplified columns, officials enacted the rituals of a sovereign state, issuing passports and receiving envoys from the few nations willing to acknowledge them. The architecture asserted permanence and stability, countering the reality of a regime maintained by military force. Now repurposed, the heavy structure remains a physical artifact of a political fiction, preserving the ambition of a state that sought to build its truth out of brick and mortar.