Question

did setia's father really died during war? in grave of fireflies ​

Answer 1

Seita hurries to cook, but it's too late: Setsuko dies of starvation. Seita cremates her, using supplies donated to him by a farmer and leaves her ashes in the fruit tin, which he carries with his father's photograph, until his death from malnutrition in Sannomiya Station a few weeks later.

Answer 2

Answer:

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Setsuko Yokokawa (横川 節子 Yokokawa Setsuko) is a preschool student and the younger sister of Seita Yokokawa in the Studio Ghibli movie Grave of the Fireflies. She was born in 1941, but she later dies in 1945 towards the end of the film.