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.
Unfortunately the movie Cocoon: Aru Natsu no Shoujo-tachi yori is not yet available on HBO Max.
| Directing | Yukimitsu Ina | Director |
| Production | Hitomi Tateno | Producer |
| Sound | Kensuke Ushio | Original Music Composer |
| Sound | Marika Ito | Theme Song Performance |
| Sound | Kiyotaka Kawada | Sound Effects |
| Writing | Machiko Kyo | Comic Book |
| Visual Effects | Hitomi Tateno | Animation Director |
| Visual Effects | mebachi | Character Designer |
| Art | Tomomi Ozaki | Prop Designer |
| Visual Effects | Tomomi Ozaki | Character Designer |
| Writing | Yukimitsu Ina | Screenplay |
| Writing | Taku Kishimoto | Screenplay |
| Art | Youichi Watanabe | Art Direction |
| Visual Effects | Nobuko Mizuta | Color Designer |
| Camera | Jiro Tazawa | Director of Photography |
| Editing | Masahiro Goto | Editor |
| Art | Yukimitsu Ina | Storyboard Artist |
| Visual Effects | Yukimitsu Ina | Animation Director |
| Production | Jun Sakata | Production Supervisor |
| Production | Yukiko Yagi | Production Supervisor |
| Production | Kazuhiro Yoshifu | Line Producer |
