The route from Osaki to Semboku is primarily serviced by the Limited Express train, known as the Yamabiko. This train operates with comfortable seating options in both standard and first-class. The Yamabiko travels at speeds of up to 130 km/h (81 mph) and completes the journey in approximately 1 hour and 15 minutes, making a few stops at intermediate stations such as Koganesan and Ogachi along the way.
Unlike high-speed services in other parts of Japan, the Limited Express retains a picturesque route through the scenic countryside, offering travelers a different experience. While there are no Shinkansen services on this specific route, the Yamabiko provides a reliable alternative for reaching Semboku efficiently, balancing speed and accessibility to enjoy the local landscape.