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 everything in Tokyo's firebombing. Even this journey proves dangerous: the train comes under fire from enemy planes, a brutal reminder that nowhere feels safe. When she reaches her uncle's home in Saitama Prefecture, his family embraces her without hesitation, offering shelter and warmth in the wreckage of her world. For a brief window, Sachiko finds peace. Her cousins introduce her to the countryside's quiet beauty. Summer stretches ahead, and for the first time since her tragedy, she allows herself to breathe. But the war's shadow continues to lengthen across Japan. The respite shatters when the final air raid descends on Kumagaya, transforming the once-safe haven into a landscape of terror and confusion. In the chaos and panic that consumes the city, Sachiko becomes separated from her family. What happens next is neither gentle nor redemptive, but rather a sobering portrait of how warfare destroys not just cities, but childhoods.