Futari de aruita iku haru aki (The days we spent together)
Title variations:
Futari de aruita iku haru aki, The days we spent together, Ballad of a workman, The years we had together, Ballad of a young workman, Futaride aruita iku-shunju, Futari de aruita iku shunju, and The seasons we walked together