The Unwanted Undead Adventurer manga volume 1 features story by Yu Okano and art by Haiji Nakasone.

It’s been ten years since Rentt Faina, a luckless Bronze-class adventurer, set his eyes on becoming Mithril-class. Unfortunately, he finds himself helpless when confronted by a legendary dragon in the Water Moon Dungeon...and is summarily eaten. But Rentt has miraculously reawakened...as a skeleton?!

Making his way back to civilization is going to be a challenge when he can barely walk, let alone hold a sword. And the good people of Maalt won’t take kindly to a monster in their midst. Can some magic techniques and a chance encounter provide Rentt’s salvation?

The Unwanted Undead Adventurer manga volume 5 features story by Yu Okano and art by Haiji Nakasone.

Undead adventurer Rentt Faina manages to survive the poisonous Tarasque Swamp and retrieve the Dragon Blood Blossom for the orphan Alize. Just as he’s about to return, a mysterious stranger approaches him. The man offers him a job on behalf of his mistress, the Latuule matriarch. Rentt accepts the request, and at the behest of Sheila and the adventurer’s guild, he agrees to meet with the elusive head of the Latuule family. However, there’s more to this family than meets the eye. Will meeting one of the oldest and most influential families in Maalt go according to plan, or will Rentt get more than he bargained for?

The Unwanted Undead Adventurer manga volume 4 features story by Yu Okano and art by Haiji Nakasone.

Given a second chance at life, undead adventurer Rentt Faina passes the Bronze-class Ascension Exam for the second time. Sheila’s suspicious of him, however, and manages to uncover his true identity. Rentt initially plays dumb, but faced with Sheila’s sincerity, he relents and confesses everything to her.

Now that he’s a Bronze-class adventurer again, Rentt takes up a special job from an orphanage for a single bronze coin. Along the way, he gains a vampiric servant of the rodent kind. His dangerous and difficult request leads him to the treacherous Tarasque Swamp. What kind of dangers lie in wait there for our intrepid adventurer?

The Unwanted Undead Adventurer manga volume 3 features story by Yu Okano and art by Haiji Nakasone.

After his evolution to a thrall, Rentt Faina sets out to explore an unmapped part of the Water Moon Dungeon. He finds a secret chamber, guarded by a mysterious woman. She offers him a treasure called the Map of Akasha as long as he keeps his silence about the secret chamber. Rentt agrees, but before he can find out more about her, she teleports him out of the dungeon.

Rather than fret and worry about this odd meeting, Rentt continues on his path to becoming a Mithril-class adventurer. His next hurdle? The Bronze-class Ascension Exam!

His adventure as an undead is only just beginning!

The Unwanted Undead Adventurer manga volume 2 features story by Yu Okano and art by Haiji Nakasone.

The craving for human flesh! Are Rentt's inhumane tendencies out of control!?

Having awoken in the Water Moon Dungeon as a Skeleton after being consumed by a dragon, Rentt has finally obtained a body with some flesh on it, all thanks to the phenomenon known as Existential Evolution. When he returns to investigate an uncharted path within the labyrinth, however, a magic circle trap is set off, teleporting Rentt to an unfamiliar place. The room he finds himself in is none other than the deepest part of the dungeon—the boss chamber.

Who will win? A Giant Skeleton powered by the very energies of the labyrinth itself, or a Ghoul with the experience and weapons of an adventurer? Amidst this intense battle, Rentt feels an overwhelming sensation taking over...