Once upon a time, in a far, faraway place, there were two lands. The world was divided into an inner land and an outer land. People feared the outer land, inhabited by eerie beings, the carriers of curse. One day, on the border to the inner land inhabited by humans, one such being finds a girl on heaps of abandoned dead bodies. The girl says her name is Shiva and shows affection to the "being" who found her, calling him "Teacher." This is a story of two people—one human, one inhuman—who linger in the hazy twilight that separates night from day.
After a covert mission goes wrong, Mobile Suit pilot Amuro Ray and his comrades are stranded on a remote island. The battalion was sent to a land called the Island of No Return to clear off any enemy forces, only to find a group of children and an enemy mecha attack. Now Amuro must find a way for them all to escape this mysterious land, but not before meeting a strange man—Cucuruz Doan.
The concluding film to the Gintama animated series, adapting the final chapters of the comic series of the same name by Hideaki Sorachi. The film covers chapters 699–704 of the original comics, with original material added in.
Kouichi Sakaguchi is a Japanese voice actor affiliated with 81 Produce. He also had a recurring role in both the Japanese and English language Pokémon anime which saw him voicing Jessie's Arbok up until Episode 6 of the Hoenn series which saw Arbok and its companion, Weezing being released to help protect a herd of Koffing and Ekans who had been captured by a hunter. He also appeared in the Orange League series, voicing the Orange Crew leader and champion Drake's Electabuzz and later reappeared during the Hoenn League series, voicing Morrison's Steelix in both the Japanese and English-language versions of the series.