The original A Herbivorous Dragon of 5,000 Years Gets Unfairly Villainized light novels are written by Kaisei Enomoto, illustrated by Syugao, and published in Japan by Kadokawa Shoten under their Kadokawa Sneaker Bunko Imprint.
The opening theme, entitled “Bokura wa Genius” (“We Are Genius”), is performed by Shuka Saitō.