Mercedes and the Waning Moon has revealed its first trailer and key visual, while also confirming a January 2027 premiere window. The anime adaptation also announced its main voice cast and production staff.
You can watch the first trailer for the anime below:
The series is directed by Kunihisa Sugishima, with Jun Kumagai handling series composition. Nami Ueyama is in charge of character designs, while RON and Shuhei Mutsuki are composing the music. Animation production is being handled by Teddy.
Mercedes and the Waning Moon: The Dungeoneering Feats of a Discarded Vampire Aristocrat is based on the light novel series The story originally began as a web novel on Shousetsuka ni Narou from October 2018 to November 2022 before being picked up by TO Books, which began publishing the light novel in May 2021. The series has released five volumes as of July 2026. It’s available in English by J-Novel Club, who describes the story as follows:
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.
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