The song "Under the Big Onion" (大きな玉ねぎの下で, Ookina Tamanegi no Shita de) by the band Bakufū Slump is used as the departure melody for the Tōzai Line platforms in 2015.

[2]The station opened on 23 December 1964 as the eastern terminus of the Tozai Line from Takadanobaba.

[3] The station facilities of the Hanzomon and Tozai Lines were inherited by Tokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.

[4] Work commenced on removing the separating wall between the parallel Tokyo Metro Hanzomon Line and Toei Shinjuku Line platforms (4 and 5) in 2012, allowing cross-platform interchange from 16 March 2013.

[1] This is the closest subway station to Yasukuni Shrine and Nippon Budokan.