The series is set to premiere in January 2027.
Four new cast members have been revealed for the upcoming anime adaptation of Fire Head’s light novel series “Mercedes and the Waning Moon: The Dungeoneering Feats of a Discarded Vampire Aristocrat” (Kaketa Tsuki no Mercedes: Kyūketsuki no Kizoku ni Tensei Shita kedo Suteraresō nanode Dungeon wo Seiha suru). The anime is set to premiere in January 2027, and a new teaser trailer has been released for the series.
Mercedes and the Waning Moon
Premiere window: January 2027
Animation studio: Teddy
Streaming platform: TBA
What do we know about the “Mercedes and the Waning Moon” anime so far?
The four new cast members of the anime are:
- Kenta Miyake as Benkei
- Ryūnosuke Watanuki as Kuro
- Junichi Suwabe as Florian
- Ai Kayano as Ryudia
Anna Nagase voices Mercedes, the main character of the anime.
The new teaser trailer features Nagase, and all the other voice actors as their characters.
Kumihisa Sugishima directs the anime at studio Teddy, with Jun Kumagai handling series scripts. Nami Shōyama designs the characters, with R.O.N and Shūhei Mutsuki composing the music.
The anime will premiere in January 2027, the exact release date is yet unknown.
What is “Mercedes and the Waning Moon” about?
The anime is based on Fire Head’s novel series, which was first serialised in the webnovel platform Shōsetsuka ni Narō from October 2018 to November 2022. In May 2021, TO Books acquired the rights for the novels and released them with illustrations by KeG.
In August 2021, Pochi Edoya began illustrating the manga adaptation, which is being released on TO Books's Comic Corona website.
J Novel Club publishes the novel series in English, and describes the story as:
Reincarnated as a vampire to a noble father and his shunned concubine, Mercedes Grunewald has always known that one day, her father will choose an heir that isn’t her. But what will become of her family when that time comes? Her mother has no skills, their maid is old, and Mercedes is but a small child. How will they survive in the world on their own? Luckily, dungeon crawling is a job that anyone can do—even a child. To provide for her family, Mercedes begins training at the age of a kindergartener, and because she’s from a nation of vampires, she fortunately has the potential to become strong. In her past life, she died unfulfilled, but that won’t be her fate this time. In the dungeons, she’s determined to find something that will make her moon full.

