The Komachi (こまち) is a high-speed shinkansen service between Tokyo and Akita in Japan, operated by the East Japan Railway Company since March 1997. It is the only shinkansen service that runs on the Akita Shinkansen, and uses E6 series trains. Between Tokyo Station and Morioka, it couples with Tōhoku Shinkansen E5 series Hayabusa and formerly E2 series for E3 series respectively. After Morioka, the Komachi service continues along standard gauge tracks that were converted from narrow gauge. Because it then runs on tracks that have grade crossings, its maximum speed from Morioka to Akita is 130 km/h (80 mph), compared to 320 km/h (200 mph) on the Tohoku Shinkansen.

Tōkyō Station is a major railway station in Chiyoda, Tokyo, Japan. The original station is located in Chiyoda's Marunouchi business district near the Imperial Palace grounds. The newer Eastern extension is not far from the Ginza commercial district. Due to the large area covered by the station, it is divided into the Marunouchi (west) and Yaesu (east) sides in its directional signage.