The Totsuka Station is an interchange passenger railway station located in Totsuka-ku, Yokohama, Japan, operated by the East Japan Railway Company and the Yokohama City Transportation Bureau.

The Shōnan–Shinjuku Line is a passenger railway service in Japan which commenced in December 2001. The line has no dedicated track as services run through shared sections along the Ryōmō Line, Takasaki Line, Utsunomiya Line, Yamanote freight line, Yokosuka Line, and Tōkaidō Main Line. It is treated as a distinct service at stations and on railway maps.