Nobuko, portrayed by Sayuri Yoshinaga, is a midwife living in Nagasaki, Japan. Three years prior, she lost her son to the atomic bomb. However, on August 9, 1948, her son reappears before her. From that day forward, Koji, played by Kazunari Ninomiya, continues to visit her, and together they fondly recall joyful memories. These surreal yet joyful encounters feel timeless.