The Marunouchi Line platforms (1 to 2) consist of two side platforms serving two tracks on the second-floor ("2F") level, and the Namboku Line platforms (3 to 4) consist of an island platform serving two deep-level tracks on the sixth basement ("B6F") level.
From March 2015, the Namboku Line platforms use the tune "Take Me Out to the Ball Game" as the departure melody, chosen as the nearby Tokyo Dome is used for baseball games [REF].