After Isao has reached retirement, he receives a phone call from an ex- elementary school classmate Norio inviting him to a reunion. During the reunion, none of them can claim to have had a wonderful life since graduating from primary school and have their respective problems now. It leads them to rethink that their lives are far from over and that there is still hope for them even at this stage of their lives. They encounter many unexpected happenings during the journey which reminds them of the excitement they experienced as kids and find new hope in their bleak lives.
