Nozomanu Fushi no Boukensha

While exploring a labyrinth, Rentt Faina, an adventurer with lots of experience but little to show for it, is killed by a dragon upon discovering its lair. Shockingly, he wakes up to find himself turned into a skeleton, the lowest class of undead monsters. As Rentt fights against the other monsters of the labyrinth, he discovers that slaying them gains him experience towards higher stages of undead evolution—even ones with flesh! With this revelation in hand, Rentt obtains a new objective in his undeath: keep evolving in the hope of eventually becoming a vampire, the highest form of undead that is nearly indistinguishable from human beings.

Despite being forced to hide his past identity and monstrous nature under an unremovable mask, Rentt manages to return to a semblance of his former life. Granted shelter by Lorraine Vivier, an elite researcher and retired adventurer, Rentt assumes her surname and starts over from scratch as a rookie. Determined to pursue his childhood dream and become a mithril-class adventurer, Rentt must be cautious not to disclose his new bodily circumstances, lest the adventurers’ guild seek to exterminate the monster he has become.

[Written by MAL Rewrite]

Vivie, Lorraine Main

Komatsu, Mikako Japanese

Faina, Rentt Main

Suzuki, Ryouta Japanese

Ibarss, Sheila Supporting

Hasegawa, Ikumi Japanese

Latuule, Laura Supporting

Kusunoki, Tomori Japanese

Rupaage, Rina Supporting

Suzushiro, Sayumi Japanese

Mysterious Woman Supporting

Hayami, Saori Japanese

Jinlin Supporting

Inui, Natsune Japanese

Hart, Isaac Supporting

Toki, Shunichi Japanese

Dario Supporting

Watai, Kanato Japanese

Umberto Supporting

Nanba, Yuuma Japanese

Soyama, Takashi Producer

Inoue, Hiromi Producer

Kubota, Akira Producer

Yoshida, Satoshi Producer

Reviews

Sep 24, 2025

Duado

Recommended

Finally, a work that doesn't pretend to be the best anime ever made.

It's essentially a fantasy Slice of Life, with good characterization and a linear, yet more than enjoyable, character development (no pathetic protagonist suddenly getting a power-up).

It has a good visual impact, more than decent animation, a few missing points here and there , and even some original and interesting points.

Even qualitatively excellent anime often struggle to keep me watching without interruptions. This is usually because works with high expectations and claims often fail to be 100% continuously engaging. The Unwanted Undead Adventurer however, manages to make you interested in its world, its characters, ... and the protagonist's thoughts.

It's a little gem that you won't regret starting and leaves you satisfied once you've finished it. I'll be happy to see the second season when it comes out.

Reviewer’s Rating: 8

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Nov 13, 2025

StigmaOfTheWind

Mixed Feelings

So the entire show is very generic with the typical I get stronger with more enemies I defeat. The only unique concept is the self evolution of going from a skeleton into a more humanoid form. While almost losing himself in the process of self evolution basically. Only two good characters in the show are the main leads. There is an annoying rat that's for some reason louder than the protagonist when he speaks. The rat makes loud noises that are a straight rip off or inspired sounds from Zelda breath of the Wild korok ... seeds. The only saving grace is the rat is only in two episodes max out of the twelve. Anyway it's a good show if you have nothing else to watch or don't want anything you have to fully commit to since it's quite short. I will say the ending song is quite elegant and really the best thing about the show. I could easily fall asleep to the song and I actually saved the song for my sleep playlist.

Reviewer’s Rating: 5

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Oct 5, 2024

Benx2019

Not Recommended

Started out semi-interesting, but then the pacing took a nose dive and just became kind of a chore to get through after that. The action is pretty basic, the level detail in the characters and backgrounds too. The characters are lacking and so it the depth of the story. At least it had the common sense not to make it an isekai for no reason like every other anime of this genre. The pacing was insufferable after the first few episodes and really never recovered. The voice acting was pretty mid, not the worst, but really not very moving. The soundtrack was fine, but the ... scenes the tracks were used for were ill fitting and overall a bit cheesy. The op was alright, and I thought the ed was pretty good. Overall, I was a little disappointed by it all around. Immediately it was apparent that the animation wasn't going to be the highlight, but the pacing and story were interesting enough to hold my attention. That soon changed though and it just became a chore to get through. 5.35/10 Dubbed

Reviewer’s Rating: 5

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	The blonde adventurer girl kind of ruined this show for me redpanda_42 - Aug 7	6 replies	by Zarutaku »» Nov 27, 11:00 AM
	Poll: Nozomanu Fushi no Boukensha Episode 12 Discussion ( 1 2 3 ) Stark700 - Mar 22, 2024	133 replies	by Cronns »» Oct 5, 2:40 PM
	Poll: Nozomanu Fushi no Boukensha Episode 1 Discussion ( 1 2 3 ) KANLen09 - Nov 24, 2023	101 replies	by Timur15 »» Aug 3, 7:14 PM
	Poll: Nozomanu Fushi no Boukensha Episode 2 Discussion ( 1 2 ) Stark700 - Jan 12, 2024	71 replies	by ProfGunk »» Jun 22, 5:36 AM
	Poll: Nozomanu Fushi no Boukensha Episode 4 Discussion ( 1 2 ) Stark700 - Jan 26, 2024	65 replies	by Autumnium »» Jun 2, 11:25 AM