The cafe was designed by Benci BENI, but the construction work itself was undertaken by Japanese carpenters, who had done interior finishing work for the Bank of Japan building, and by sashimonoshi (cabinet makers).
設計はベンチ・ベニだが、施工は当時の日本の大工（日銀の内装を手がけた大工）や、家具の装飾を手がける指物師（木の道の匠）が作った。