A documentary anime retelling the shipwreck of the freight boat Tsushima Maru, which was carrying 836 schoolchildren home in July 1944 when it was attacked and sunk by an American submarine. Produced by the surviving family members of the Tsushima Maru.
| Writing | Koji Chino | Screenplay |
| Writing | Tatsuhiro Oshiro | Book |
| Directing | Osamu Kobayashi | Director |
| Writing | Shoichiro Okubo | Screenplay |
| Visual Effects | Hideo Kawauchi | Animation Director |
| Visual Effects | Tsutomu Shibayama | Animation Director |
| Visual Effects | Masako Goto | Key Animation |
| Visual Effects | Yumiko Suda | Key Animation |