A manga adaptation illustrated by Haiji Nakasone has been serialized in Overlap's Comic Gardo website since November 2017, with its chapters collected into twelve tankōbon volumes as of December 2023.

Written by Yū Okano, The Unwanted Undead Adventurer began publication online via the user-generated novel publishing website Shōsetsuka ni Narō on September 22, 2016.

[18] A manga adaptation illustrated by Haiji Nakasone began serialization online via Overlap's Comic Gardo website on November 24, 2017.

[70] It was produced by Connect and directed by Noriaki Akitaya, with scripts written by Yukie Sugawara, character designs handled by Takao Sano, and music composed by Shun Narita.

[77][78] Rebecca Silverman and Lynzee Loveridge of Anime News Network reviewed the first volume of the light novel in 2018, praising Rentt's goal as "an interesting goal, and a hopeful one if you're looking for the potential harem romance that's lurking within the plot, and it does help to make this novel stand out in the crowded field of fantasy that draws directly from role playing games".