Togouchi is a rather unusual Japanese whisky from Chugoku Jozo distillery located near Hiroshima. Established in 1918, Chugoku Jozo primarily creates sake and souchu and doesn't actually distill whisky themselves. Instead the distillery sources Scottish malt whisky and Canadian grain whisky to be blended instead under the Togouchi brand.
The 15 Years Old expression (like all others from the distillery) from Togouchi are blended, and aged in a Japanese railway tunnel, with features of chocolate, nutty, and spices on its profile.