is an upcoming Japanese original net animation (ONA) series directed by Christophe Ferreira and produced by Qubic Pictures and Orange. Based on the novel of the same name by Scott Westerfeld, it is scheduled for a global premiere on Netflix on July 10, 2025. Production. An original net animation adaptation of "Leviathan" by Scott Westerfeld was announced in June 2024. It is directed by Christophe Ferreira and produced by Qubic Pictures and Orange, with Nobuko Toda and Kazuma Jinnouchi composing the music. A teaser trailer was released in September 2024. The opening theme song is "Paths Combine" by Joe Hisaishi, and its closing theme "The Sky Ahead" is performed by Hisaishi featuring Diana Garnet. Release. The series is set to be released on July 10, 2025, worldwide on Netflix.