the station consists of two sets of platforms, for the asakusa line and mita line. the asakusa line is served by an island platform (platforms 1 and 2) located on the second basement ("b2f") level, while the mita line is served by two side platforms located on separate levels, with the southbound platform (platform 3) on the second basement ("b2f") level, and the northbound platform (platform 4) on the third basement ("b3f") level.