Traveling from Satsumasendai to Tosu, you can rely on the Kyushu Shinkansen, specifically the Mizuho and Sakura services. The Mizuho train is known for its speed, reaching up to 300 km/h (186 mph) and completing the journey in approximately 1 hour and 30 minutes, with minimal stops at key stations. On the other hand, the Sakura service, while slightly slower, takes about 1 hour and 50 minutes, as it makes additional stops at several regional hubs such as Kumamoto and Takeo-Onsen. Both services offer a variety of seating options, including Ordinary and Green class seating (Economy and First), allowing passengers to select their preferred level of comfort. Amenities on these trains include comfortable seating and refreshments available during the trip. The Mizuho is the best choice for those prioritizing speed, whereas the Sakura provides a better connection to various destinations.