The Unwanted Undead Adventurer light novel series by Yuu Okano is getting an anime adaptation. An announcement trailer has been released.
The light novel series began in 2017 and will see the release of the 10th volume on April 25. The books are illustrated by Jaian and published under the Overlap Novels label.
J Novel Club describes the story as:
Rentt Faina, a twenty-five-year-old adventurer, has been hacking away at monsters for a decade. However, without much talent for the job, Rentt finds himself stuck hunting slimes and goblins for meager amounts of coin every day. Little does he know, all this is about to change when he comes across a seemingly undiscovered path in the Water Moon Dungeon. What awaits him at the end of the path, however, is neither treasure nor riches, but a legendary dragon that wastes no time swallowing him whole! Waking up a short time later, Rentt finds himself not quite dead, but not very alive either— He is nothing more than a pile of bones! Armed with nothing but his trusty sword, tool belt, and ghoulish new looks, Rentt sets off on his quest as a newly reborn skeleton to achieve Existential Evolution, hoping to one day return to civilization with a more human form. Will Rentt succeed, or will the labyrinth consume him for the rest of his un-death…?
The Unwanted Undead Adventurer started off as a web novel on Shousetsuka ni Narou in 2016. A manga adaptation by Haiji Nakasone, also published by Overlap, began in 2018.
Source: overlapinc YouTube channel