Toho Line is the newest subway line in Sapporo. Its train cars have been renewed recently.
This line also has connections to JR Lines at Sapporo station. Sapporo International Student Center, a dormitory for international students, is in front of Gakuen mae station on this line. The nearest station from Sapporo dome, the home field of Hokkaido Nihonham Fighters, is Fukuzumi station on this line.
In short, this line is suitable for international students living in the dormitory or being baseball freaks. Of course, it is also easy to go to the downtown by this line.