Shirahata no Shoujo Ryuuko (Movie, 1 episodes, AniDB)

Requested on April 4, 2022, 9:17 p.m.

In 1945, American troops land on the island of Okinawa. The Japanese fight a guerrilla war against the invaders, and little Ryuko is forced to leave her grandparents behind and flee with her mother and younger sister. Source: The Anime Encyclopedia