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A new train has begun operating the JR Senseki Line, which runs through Miyagi Prefecture We will introduce what kind of train it is and how the introduction of the new train will change the Senseki Line.
What is the JR Senseki Line?
The JR Senseki Line is a 49.0 km railway line operated by JR East, running from Aoba-dori Station in Aoba Ward, Sendai City, Miyagi Prefecture, through Sendai Station in Miyagino Ward, to Ishinomaki Station in Ishinomaki City. The line connects Sendai City, the largest city in the Tohoku region, with the Pacific coast of Miyagi Prefecture, and the line's name, Senseki Line, comes from the fact that it connects Sendai and Ishinomaki. In addition to providing commuter and school transportation for the eastern area of Sendai City, the line also serves as intercity transportation between Sendai City and municipalities along the line, such as Tagajo City, Shiogama City, Matsushima Town, and Ishinomaki City, as well as transportation to tourist destinations such as Matsushima. Please refer to our previous article, which focuses on the history of the Senseki Line.
The Senseki Line is a system that runs the entire Senseki Line from Aoba-dori Station to Ishinomaki Station, and all trains are local trains that stop at every station. In addition to trains that run the entire line from Aoba-dori Station to Ishinomaki Station, there are also trains that run between Aoba-dori Station and stations such as Tagajyo, Higashi-Shiogama, Matsushima-Kaigan, and Takagimachi.
Unlike other JR lines, the Senseki Line's platform at Sendai Station is underground, so you'll have to walk a slightly longer distance than if you were using other lines. Also, as mentioned above, there are no express trains, so if you're traveling long distances, such as from Sendai Station to Ishinomaki Station, there's little reason to choose the Senseki Line. However, Matsushima-Kaigan Station, which is convenient for sightseeing in Matsushima, known as one of Japan's Three Most Scenic Spots (the other two are Amanohashidate in Kyoto Prefecture and Miyajima in Hiroshima Prefecture), is not served by the Senseki Tohoku Line trains, which will be discussed later. Those who want to get off at Matsushima-Kaigan Station will need to take a Senseki Line train.
In the second episode of the TV anime "That's Journey," which aired in 2025, the characters are shown riding a train on the Senseki Line and visiting Matsushima-Kaigan Station for sightseeing
For many years, the Senseki Line has operated using four-car 205 series electric trains. However, the introduction of new E131 series electric trains began in December 2025, and with the JR Group timetable revision on Saturday, March 14, 2026, the E131 series will completely replace the existing trains.
Senseki Tohoku Line
The Senseki Tohoku Line is a route that began operation on May 30, 2015. Senseki Tohoku Line trains do not run to stations on the Senseki Line between Aoba-dori Station and Matsushima-Kaigan Station. Instead, they use the tracks of the JR Tohoku Main Line (a main line connecting Tokyo Station to Morioka Station via Fukushima Station, Sendai Station, and other stations). The Tohoku Main Line is easier to travel on than the Senseki Line, allowing for faster travel times between Sendai Station and Takajo-cho Station and beyond. The Senseki Tohoku Line's starting and ending station on the Sendai side is Sendai Station, where it shares the same ground-level platform as Tohoku Main Line trains, making it easier to board than Senseki Line trains. While most trains on the Pacific coast start and end at Ishinomaki Station, there is one train per day that runs on the JR Ishinomaki Line to Onagawa Station in Onagawa Town. There are no local trains; only rapid trains and limited rapid trains with fewer stops operate .
Since the Senseki Tohoku Line began operation in 2015, it has been using HB-E210 series hybrid diesel railcars, which are made up of two two-car trains combined into four-car formations. These railcars run on electricity from their own onboard diesel generators and batteries, and are a different type of railcar from electric trains.
Additionally, the "Fun Train" (tourist train) "SATONO" is sometimes used to operate the special "Date SATONO" train via the Senseki Tohoku Line and Ishinomaki Line. The operating section is from Onagawa Station to Sendai Station (trains in the opposite direction run via the Tohoku Main Line and Ishinomaki Line).
The 205 series trains will be retiring from the Senseki Line this time. The HB-E210 series hybrid diesel railcars will continue to operate. The 205 series trains first appeared on Tokyo's Yamanote Line in 1985, when Japan National Railways still existed, before the various JR companies were established. After the JR companies were established in 1987, a large number of additional trains were manufactured. Following the Yamanote Line, they were also introduced on lines such as the Saikyo Line, Nambu Line, and Yokohama Line, and were once seen throughout the Tokyo metropolitan area. A small number of them are still in use on Kansai lines.
The 205 series has been in service on the Senseki Line since 2002. The trains are intermediate cars of trains that had ceased service on the Yamanote Line or Saikyo Line, but were later modified to install a driver's cab and repurposed for the Senseki Line, and are classified as the 205 series 3100 series. Because the driver's cab was added later, the front shape of the trains is significantly different from the 205 series that was the lead car from the time of production .
The 205 series train that was in service on the Yamanote Line
The 205 series has been disappearing from other lines besides the Senseki Line, and is now only seen in service on a limited number of routes in Japan, such as the Fujikyu Line, a private railway line in Yamanashi Prefecture. However, there are many carriages that have been transferred from JR East to Indonesia in Southeast Asia.
What is the new E131 series train?
The new E131 series trains introduced on the Senseki Line
The E131 series electric trains will replace the Senseki Line's 205 series first appeared in 2020 in the Boso region of Chiba Prefecture. They have since been introduced on lines such as the Sagami Line and Tsurumi Line in Kanagawa Prefecture, and the Nikko Line in Tochigi Prefecture. The E131 series that will be introduced on the Senseki Line will be designated the 800 series and will begin commercial operation on December 1, 2025. With the timetable revision on March 14, 2026, a total of 56 cars will be in service in 14 four-car trains, and local trains on the Senseki Line will be completely switched over to the E131 series.
For lines with lower passenger volumes than lines like the Yamanote Line in the Tokyo metropolitan area, it has traditionally been the case that carriages used on lines with higher passenger volumes have been converted into shorter formations to accommodate the demand. in that it was developed and manufactured from the start with the purpose of being deployed on such .
The train is equipped with facilities for one-man operation without a conductor on board, and has a wide stainless steel body similar to that used in commuter trains in the Tokyo metropolitan area in recent years. It is also equipped with displays above the doors, which are already standard in trains in metropolitan areas. Passenger safety and security have also been taken into consideration, with the installation of on-board security cameras and additional emergency notification devices. Other benefits that are difficult to obtain by repurposing existing trains include the use of new technology to make it easier to reduce power consumption and the inclusion of devices that detect signs of malfunction in the trains and tracks.
As explained earlier, the Senseki Line's 205 series is a converted train from another line, but the 103 series that the 205 series replaced, and its predecessor, the 72 series, were also converted trains that had finished their service on other lines. The first newly manufactured trains to be introduced on the Senseki Line before the E131 series were all the way back in 1946, shortly after the war. The E131 is the Senseki Line's first newly manufactured train in about 80 years (the HB-E210 series used on Senseki Tohoku Line trains is a new car, but it's not really an "electric train").
With the introduction of the E131 series, one-man operation begins
With the timetable change in March 2026, local trains on the Senseki Line will be standardized to the E131 series, and one-man operation will begin . However, even though it is one-man operation, it will not be the same as one-man operation like a route bus. Passengers can get on and off the four-car train from any door, and there is no need to pay fares on board.
Only E131 series trains will be operated by one driver . Senseki Tohoku Line trains operated by HB-E210 series trains will continue to have a conductor on board.
In addition, with the timetable revision, the number of trains will be increased between Aoba-dori Station and Tagajyo Station during the daytime (10:00-14:00) . This will increase the number of trains from roughly 3-5 per hour to 4-6, which is expected to be extremely convenient for passengers during this time period. In recent years, especially since the COVID-19 pandemic, there has been a nationwide trend of fewer trains being added. The fact that the number of trains is being increased under such circumstances shows how well the Senseki Line is being used. With the new rolling stock and new timetable, the Senseki Line will likely look different than before.
