Koei Hamao Line

The Koei Hamao Line is a subway line in Kaijo, Teiko, operated by the Kaijo subway operator Koei Subway. The line runs between Fukuoka Station and Hamao-Nishi in Mizutani. The Hamao Line was the first subway line in Teiko to offer through services with a private railway. Today, it has more through services to other lines than any other subway line in Tokyo.