It's the summer of 1982. Singer-songwriter Sakurai Masahiko returns home to Nagasaki so he can participate in sending off the floating lanterns during O-bon. It's the first O-bon since his beloved aunt, Setsuko, has died. Before the festival, Masahiko is approached for an interview with a magazine, which makes him remember all of his happiest memories, and all of his most bittersweet ones as well. This is a heart-warming tale of love, life and death and the memories all of those leave with us.