Grave of the Fireflies

Grave of the Fireflies is a 1988 Japanese animated war film written and directed by Isao Takahata. It stars the voices of Tsutomu Tatsumi, Ayano Shiraishi, Yoshiko Shinohara, and Akemi Yamaguchi. Based on Akiyuki Nosaka's 1967 semi-autobiographical short story of the same name, the film is set in Kobe shortly after its bombing by the U.S. Army Air Forces, and follows two orphaned siblings who desperately struggle to survive during the final months of the Pacific War.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.