A newly launched official X (Formerly Twitter) account has announced that Katou Takuji and Gashigashi’s manga series will receive an anime adaptation by Studio TNK.
The account also unveiled an anime adaptation announcement visual and celebratory illustrations and comments from original author Katou Takuji and artist Gashigashi.

Anime adaptation visual of Demons Plan Something Good!
Celebratory illustration and comment by original author Katou Takuji
Celebratory illustration and comment by manga artist Gashigashi

Demons Plan Something Good! began serialisation in Dra-Dra Sharp magazine on March 24, 2023. The latest chapter, chapter 24, was released on March 7, 2025.