Puente Inc. is scheduled to premiere a theme song teaser for its original anime 蒼い月の使者 (The Blue Moon Messenger) on YouTube at 7:00 p.m. JST on November 13, 2026, according to a PR TIMES release from Puente. The 12-episode series begins on November 20 at 7:00 p.m. JST, with a new episode every Friday at the same time through the finale on February 5, 2027.
The English name comes from the title of the teaser video on YouTube. Mellow performs the theme song, and a vertical YouTube Short is being released at the same time as the teaser. The release does not say which platform will stream the episodes.
According to the release, the story follows a girl who wakes up having forgotten her name and where she was going. A single note and an outstretched hand stir her memories. The release's tagline reads, in translation, "Under a blue moon, someone is waiting."
Puente's president is credited with the original story, screenplay and direction, and Puente is credited with production. The company is based in Tokorozawa, Saitama, and the release describes its business as AI-assisted consulting, from market research to development.
Mellow publishes songs on an official YouTube channel that the release says has more than 1.8 million subscribers.