The Sakura-dōri Line (桜通線, Sakura-dōri-sen) is a subway line, part of the Nagoya Municipal Subway system in Nagoya, Japan. It runs from Nakamura Kuyakusho Station in Nakamura Ward to Tokushige in Midori Ward, all within Nagoya. The Sakura-dōri Line's color on maps is red. In 2004, the city started to change all station signs. The new signs have a station name followed by a single letter and a number. In the case of Sakura-dōri Line, the letter is S. Officially, the line is called Nagoya City Rapid Railway Line 6 (名古屋市高速度鉄道第6号線, Nagoya-shi Kōsokudo Tetsudō Dai-roku-gō-sen). All the stations accept manaca, a rechargeable contactless smart card.