I used to hear excerpts of this song a fair bit over the years on TV but didn't hear the whole thing until just recently. Masatoshi Nakamura's（中村雅俊）4th single "Ore tachi no Tabi" (Our Voyage) came out in October 1975 and was the theme song for a 1-year-long drama of the same name about a trio of buddies who have to make that hard transition from the good ol' days of hanging out in school to the everyday of corporate life (which they hate) to starting up their own company.
When I found out that "Ore tachi no Tabi" had been written and composed by Kei Ogura（小椋佳）, I simply uttered "naruhodo". The ballad just has that distinctive Ogura wistfulness which would force any singer to look longingly up at the ceiling with moist eyes. Nakamura's vocals have that laconic "shuffling-introspectively-on-the-pavement" feel which is perfect for the song. It's quite soothing for the soul, just as any cup of chamomile would.
"Ore tachi no Tabi" managed to peak at No. 2 on Oricon and became the 6th-ranked single for 1976,