富士五湖
The road functions as an extension of the Chūō Expressway Kawaguchiko Route (a branch route of the Chūō Expressway) in southern Yamanashi Prefecture, passing along the eastern base of Mount Fuji and to the west of the Fuji Five Lakes. The road then crosses into Shizuoka Prefecture to the south. The road terminates at an interchange with the original National Route 138; beyond this point, National Route 138 continues towards the city of Gotenba and an interchange with the Tōmei Expressway.