cocoon - One Summer of Girlhood poster

cocoon - One Summer of Girlhood (2026) – Trailer & Where to Watch

MOVIE ★ 8.0/10 2026 1h 0m AnimationDramaWar

San and Mayu attend an all-girls school on a warm and tranquil island. When war reaches their shores, they are ordered to help nurse the wounded in a military hospital hidden away in a cave. Amidst escalating death and brutality, the friends struggle to find solace in their fragile lives.

Where to watch cocoon - One Summer of Girlhood (US)

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Cast

Marika Ito as San (voice), Hikari Mitsushima as Mayu (voice), Yoko Hikasa as Tamaki (voice), Rena Motomura as Hina (voice), Chinatsu Akasaki as Mari (voice), Aoi Koga as Yuri (voice), Yume Miyamoto as Kaede (voice), Izumi Aoyagi as Shiho (voice), Miyuki Sawashiro as Kaho (voice), Umeka Shoji as Sensei (voice)

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