The film has been licensed by Sentai Filmworks in North America, Madman Entertainment in Australia and New Zealand, and by MVM in the United Kingdom and Ireland.

The tale begins 6,000 years in the past, during the Great War, a worldwide conflict that pitted the sentient races of the world against each other as the Old Deus fought for control of the Suniaster, a conceptual device which would only reveal itself to the strongest being on the planet and make the holder the One True God.

Riku, the leader of humanity's last colony along with his sister Corounne, allows another one of his companions die in a Demonia attack while sourcing for information; the death, along with all the others that have come before, plague him with nightmares and guilt.

The colony he leads finds itself on the verge of annihilation, with their leader unstable, their numbers dropping, and the battles that endanger their lives around the area becoming more frequent and drawing ever closer.

Initially hesitant to help her, Riku eagerly accepts when she challenges him to a game of chess, despite knowing the frightening processing power the Ex-Machina possess; predictably, he loses, and they agree to cooperate with each other, allowing him to take advantage of her logical prowess and letting her stay with him to learn more about the human heart.

Since she has only a long, droning designation code assigned to her, Riku, hearing the word "Schwarzer" (German for "black") in her title, names her Shuvi after the color of her hair.

A vicious battle ensues and Shuvi is mortally damaged, but she completes the last step of the plan by reconnecting with the Ex-Machina hive-mind and employing them to aid Riku.

The forces of the other races and the Old Deus assemble and fight one last battle; in the end, after the energy from their weapons pierces the planet's core, the Suniaster appears before Riku, but his arm dissolves as he reaches for it, the device having rejected him.

Tet, having manifested from Riku's imagination, grants his wish as he dies and takes the Suniaster; he uses it to become the One True God and remake the world, predicating it on the playing of games rather than the use of violence and war.

[21] Rachel Cheung of the South China Morning Post gave the film 2.5 out of 5 stars, opining that it would satisfy fans of the original material but would leave newcomers confused.