cocoon – One Summer of Girlhood is a special anime that premiered in spring 2025, produced by Sasayuri.

About the production: the story comes from a manga, there is 1 episode of about 62 minutes and its current status is "finished".

Its main genres are drama, with themes such as War, Female Protagonist, Survival and Military.

On AniList, cocoon – One Summer of Girlhood has an average score of 74%, a good score, and appears on 7,528 users' lists.

San and Mayu are two schoolgirls living in Okinawa during the closing months of the Pacific War. Together with their classmates, the two friends are drafted into the war effort as nurses for wounded soldiers. When ordered to die for their country, the remaining members of the group escape only to face the harsh environment of a tropical paradise that has become a hellish battlefield.

Official synopsis from AniList.