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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.
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cocoon - One Summer of Girlhood (2026) is a animation, drama, war film directed by Yukimitsu Ina, starring Marika Ito, Hikari Mitsushima, Yoko Hikasa. The film runs 60 minutes, holds a 8.0/10 audience score across 1 votes. Viewers can check regional availability across U-NEXT, Prime Video, alongside its official trailer on MovieFlix.
cocoon - One Summer of Girlhood is listed across U-NEXT, Prime Video depending on your country. Use the regional availability selector on this MovieFlix page to compare streaming, rental, and purchase options in your territory, or watch the official trailer above.
cocoon - One Summer of Girlhood has a runtime of 1h (60 minutes). Classification standards can vary by country and release format.
cocoon - One Summer of Girlhood was directed by Yukimitsu Ina. Key cast members include Marika Ito (San (voice)), Hikari Mitsushima (Mayu (voice)), Yoko Hikasa (Tamaki (voice)), Rena Motomura (Hina (voice)), Chinatsu Akasaki (Mari (voice)).
cocoon - One Summer of Girlhood was released on September 4, 2026. Production countries include Japan, with spoken dialogue in 日本語.
