A child watches her city burn, survives a strafing run, then arrives at her uncle's house expecting safety. The film knows better. Those quiet days exploring the countryside aren't reprieve, they're the timer counting down to when even Kumagaya learns there is nowhere left to hide. War doesn't announce itself with fanfare; it arrives while you're picking flowers with your cousins, and this film refuses to let you look away from what that actually costs a seven-year-old girl.

Seven-year-old Sachiko boards a train bound for Kumagaya after losing her immediate family in the firebombing of Tokyo. Even this journey proves dangerous: a plane opens fire on the train along the way. When she reaches Kumagaya in Saitama Prefecture, her uncle meets her at the station, and his whole family welcomes her warmly. For a brief window, Sachiko finds peace. With her cousins, she discovers the natural beauty of the land around Kumagaya during the last days of summer. That respite cannot last. The final air raid of the war descends on the city, filling it with fear and chaos, and in the turmoil Sachiko is separated from her family, with tragic consequences.