Skeleton Knight in Another World (Japanese: 骸骨騎士様、只今異世界へお出掛け中, Hepburn: Gaikotsu Kishi-sama, Tadaima Isekai e Odekake-chū) is a Japanese light novel series written by Ennki Hakari and illustrated by KeG. It began serialization online in October 2014 on the novel self-publishing website Shōsetsuka ni Narō. The series was later acquired and published by Overlap under their Overlap Novels imprint in June 2015.
A manga adaptation with art by Akira Sawano is serialized online via Overlap's Comic Gardo website since February 2017. Both the light novel and manga are licensed in North America by Seven Seas Entertainment. An anime television series adaptation produced by Studio Kai and Hornets aired from April to June 2022. A second season produced by Aura Studio premiered in July 2026.
Contents
Plot
Upon awakening, a gamer finds himself in the body of the avatar he was using in an online game: a powerful knight named Arc whose appearance underneath his armor is that of a skeleton. In unfamiliar territory, he decides that it would be best to hide his appearance by never removing his helmet. After he spots a group of bandits attempting to rape two women, Arc kills the bandits and escorts the women to a town, where he becomes a mercenary.
On his journey, he discovers a wounded fox with green fur. After he heals it with magic, the fox indicates that it wants to travel with him and he names it Ponta. As "spirit creatures" like Ponta rarely bond with humans, Ponta's presence signals to others that Arc is trustworthy.
Later, Arc learns of this world's slave trade, where humans have captured and enslaved elves. After Arc intervenes in a battle to help an elf warrior named Ariane Glenys Maple save a group of captured elf children, Ariane hires Arc to help her free enslaved elves who are being held in the city of Diento. While invading the slave warehouse, Arc encounters a catgirl ninja who gives him information about humans involved in the slave trade and about other captured elves being held in the local lord's castle. After Arc and Ariane free the captured elves in the warehouse, they free two female elves in the castle. After they escape the castle, Ariane asks Arc to accompany her back to their lands. Arc is reluctant and shows why by removing his helmet, revealing his skeletal form. While initially shocked, Ariane realizes that, despite his appearance, Arc is not evil but under a curse, and she promises that the elves will keep his secret.
At the elvish settlement of Lalatoya, Arc is welcomed by Elder Dillan and his wife. At a meeting of Elders in the elvish capital city, at which the information about human Nobles being involved in the slave trade and the clear violation of the Elf–Human peace treaty is discussed, it is decided that while no direct retaliation against the humans will be made, the secret operations to free enslaved elves will continue. Dillan offers to hire Arc to continue helping Ariane, and as payment provides him with information about a magic pool in Dragon Lord country that may lift his skeleton curse. Arc agrees, and he and Ariane, with Ponta, begin their quest to free the captured elves and end the slave trade. They are joined in their mission by Chiyome, the ninja Arc had previously encountered, who is engaged on a similar mission to free her fellow beast people who have likewise been enslaved by humans.
Characters
Arc (アーク, Āku)
Voiced by: Tomoaki Maeno (Japanese); Brandon Johnson (English)
A man who wakes up in the world of the fantasy video game he has been playing to find himself transformed into his avatar, a heavily armored skeleton named Arc. Since the series begins with him waking up in this world, there is no information as to how he was transported to this world or his real name, appearance, or past in his original world. His armor makes his appearance tall and imposing, and his physical strength is shown to be quite superhuman. He also alters his speaking voice to sound deeper and more masculine, as befits his game character. He has a strong moral sense and is always ready and willing to help or defend endangered or oppressed beings, whether humans, elves or beast people; he also is extremely polite (which, considering his size and supposed status as a "knight" due to his armor, surprises most ordinary people) and never hesitates to admit when a person is his equal (such as the ninja Goemon) or superior in any way (such as Ariane, Glenys and Chiyome). He can get very excited at certain things, but he is quite unflappable in battle. There are people who knew his true identity as an Undead, and they believe his alibi or cover story of finding a cure for his "curse" is the reason he's using Holy magic despite being Undead.
Ariane Glenys Maple (アリアン・グレニス・メープル, Arian Gurenisu Mēpuru) / Ariane Glenys Lalatoya (アリアン・グレニス・ララトイア, Arian Gurenisu Raratoia)
Voiced by: Fairouz Ai (Japanese); Caitlin Glass (English)
The second daughter of Elder Dillan Tahg Lalatoya and Glenys Alna Lalatoya, she is a female elf warrior of the elf capital city of Maple (elf names use the name of their registered village/city as a surname, hence her surname of "Maple"; however, in Volume 6 of the light novel series Glenys tells Arc that Ariane has changed her home registration from "Maple" to "Lalatoya"). In the light novel series, she is described as having amethyst-colored skin, golden-irised eyes and white hair (in the light novels, these are the unmistakable signs of a "dark elf"), while she has pale skin and pink hair in the anime. While the circumstances of her first meeting with Arc differ between the light novel and anime, both versions have her hiring Arc to assist her after he aids her in battling slavers who had captured elf children. While she is a skilled fighter, she feels inferior to her older sister Eevin, who is also a warrior. She has a deep distrust of humans because of the crimes committed against her people; however, through her association with Arc she may be modifying her outlook (although she remains cautious and defensive). She has a physical intolerance for alcohol (two glasses of strong liquor are enough to make her drunk), and in the anime she sometimes forgets that beneath his armor Arc is a skeleton (causing her to freak out and try to explode him when she sees him without armor). Her feelings about Arc seem complicated; she continually acts as though exasperated with Arc and occasionally needles him, but in Volume 2 of the light novel series when her sister Eevin teases her about having a man in her life, "For a moment, the face of a skeleton outfitted in majestic armor flashed through Ariane's mind", in Volume 4 she is extremely distressed when his exposure to the waters of the magic pool render him unconscious for five days, and his culinary skills astonish her (apparently she either isn't very good at cooking or just doesn't know how).
Media
Light novel
Written by Ennki Hakari with illustrations by KeG, Skeleton Knight in Another World is published by Overlap under Overlap Novels imprint since June 25, 2015, with 10 volumes released as of May 2021. Seven Seas Entertainment licensed the series on September 20, 2018, and released the first volume on June 11, 2019.
Manga
In February 2017, the first chapter of the manga adaptation by Akira Sawano was published in Overlap's Comic Gardo; though Akira is the author of the manga series, character designs are credited to KeG. Overlap collected the individual chapters into tankōbon volumes, with the first volume released in August 2017. In September 2018, Seven Seas Entertainment announced its licensing of the manga series for localization in North America under the title Skeleton Knight in Another World.
Anime
An anime television series adaptation was announced on April 17, 2021. It is animated by Studio Kai and Hornets and directed by Katsumi Ono, with Takeshi Kikuchi supervising the series' scripts, Tōru Imanishi designing the characters, and eba and Tsubasa Ito composing the series' music. The series aired from April 7 to June 23, 2022, on AT-X and other networks. The opening theme song is "Aa, Waga Roman no Michi Yo" (嗚呼、我が浪漫の道よ; Ah, My Romantic Road), performed by PelleK, while the ending theme song is "Bokura ga Oroka da Nante Dare ga Itta" (僕らが愚かだなんて誰が言った; Who Called Us Fools?), performed by DIALOGUE+. Crunchyroll streamed the series worldwide outside of Asia. Muse Communication announced the license for South and Southeast Asia the day after the anime announcement. On April 11, 2022, Crunchyroll announced that the series would receive an English dub, which premiered on April 28 of the same year.
A second season was announced at the Overlap Bunko 10th anniversary event on December 15, 2024. Toshizo Nemoto replaced Takeshi Kikuchi as the scriptwriter, and Aura Studio took over production of the second season, replacing Studio Kai and Hornets. The season premiered on July 4, 2026. The ending theme song is "Kiseki wa Okinai" (奇跡は起きない; Miracles Don't Happen), performed by DIALOGUE+.
Reception
Previews
The anime adaptation's first episode received generally negative reviews from Anime News Network's staff during the Spring 2022 season previews. Caitlin Moore found its "mishmash of isekai clichés" dull and "pretty inoffensive" and was immediately put off by the graphic rape scene in the beginning and Arc's comical antics during and after said scene, calling it "a bad narrative choice all around, and deserves to be criticized for that in addition to being crass." James Beckett found the sexual assault opening "lascivious and needlessly cruel" and felt that Arc comes across as a "genuine sociopath" when going through violent scenarios. Nicholas Dupree also criticized the rape sequence as "a lazy, shameless bit of shock-jock writing" that felt out of place and ruins Arc's introduction by seeing his perspective of said sequence and feels like a bad joke afterwards. Rebecca Silverman found the "opening salvo" as a cheap ploy to grab viewers' attention and called the rest of the episode "shockingly bland", concluding that "a combination of insipid and offensive doesn't leave this with a whole lot to recommend it." Conversely, Richard Eisenbeis was positive towards Arc's personality and felt the bandit scene gave him some "character development", concluding that: "All in all, despite the rough start, I really enjoyed this episode and can't wait to see where things go from here as he inevitably forms a party and answers the call to adventure."
Series
Stig Høgset, writing for THEM Anime Reviews, criticized the moral alignment and violent aspects of the fantasy world and some "pretty cheap-looking segments" throughout the episodes, but gave praise to Arc's enthusiastic character and both Ariane and Chiyome's backstories making them "more fleshed-out characters" outside of their interactions with Arc, concluding that: "It's not a terribly complicated show, so it works more like a mid-level popcorn entertainment version of deeper or grimmer shows like Re:Zero or Overlord, but like I once said about other shows; sometimes, you just want to relax and have some fun. Skeleton Knight in Another World's got your back there."



