Juuou Mujin no Fafnir

Unlimited Fafnir

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Alternative Titles

Japanese: 銃皇無尽のファフニール
English: Unlimited Fafnir
German: Unlimited Fafnir
Spanish: Mujin Fafnir
French: Unlimited Fafnir
More titles


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Jan 9, 2015 to Mar 27, 2015
Premiered: Winter 2015
Broadcast: Fridays at 02:16 (JST)
Licensors: None found, add some
Studios: Diomedéa
Source: Light novel
Genres: ActionAction, FantasyFantasy, RomanceRomance
Themes: HaremHarem, SchoolSchool
Duration: 24 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 6.171 (scored by 7337973,379 users)
1 indicates a weighted score.
Ranked: #84402
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1442
Members: 155,608
Favorites: 165

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Streaming Platforms

Ranked #8440Popularity #1442Members 155,608
Add to My List
Episodes: /12


Midgar, all-girl academy, would have been notable just for the action of accepting its first and only male student, Yuu Mononobe. But Midgar stands out for much more than that: it's a school exclusive to a group of girls known as D's. Each of them have extremely powerful abilities in generating dark matter and manipulating it into powerful weaponry.

The D's didn't exist twenty-five years ago, and only appeared after a number of mysterious, destructive monsters known as "Dragons" started appearing around the world. Strangely, just as suddenly as they appeared, they vanished. In their destructive wake, some girls started being born with symbols on their bodies and powers similar in nature to those wielded by the Dragons themselves.

Now the D's attend this school, hoping to harness and utilize their powers against the Dragons. Yuu is their latest member and is extraordinary for being the only known male D in existence. Now he must forge relationships with the girls around him, including his long separated sister who attends the school as well, and work with them to investigate and eliminate the threat of the powerful Dragons.


Juuou Mujin no Fafnir adapts the first 3 novels of Tsukasa's light novel series of the same title.

Episode Videos

Related Anime

Characters & Voice Actors


Yoshikawa, Atsushi
Hidaka, Isao
Assistant Producer


Opening Theme

Apple Music
Amazon Music
Youtube Music
"FLYING FAFNIR" by TRUSTRICK (Sayaka Kanda & Billy)

Ending Theme

1: "Ray of bullet" by Iris Freyja (Rina Hidaka) & Mitsuki Mononobe (Manami Numakura)  (eps 1-11)
2: "Ray of bullet" by Iris Freyja (Rina Hidaka), Mitsuki Mononobe (Manami Numakura), Lisa Highwalker (Hisako Kanemoto), Ariella Lu (Sora Tokui), Ren Miyazawa (Fumiko Uchimura), and Tear Lightning (Ayane Sakura)  (eps 12)


May 24, 2019
Okay this anime was Decent..

From watching this anime 12 episodes i don't seems to enjoy it and not just that it made me want to sleep cause the story is not that interested.

So here is the thing, Mononobe Yuu has the power of the Leviathan but in exchange of strength is his Memories, from that point "oh this might be interesting" crossed my find... And not what i though, using his strength does not affect his current state of mind ( I would like the anime if his sanity/humanity or forget who he was or who the girls are ) but no, he just forgets ...
Jan 23, 2022
Mixed Feelings
tl;dr: A pretty generic battle academy harem anime that shows some light hints of potential but is largely a miss in terms of execution.

Juuou Mujin no Fafnir is a pretty typical harem battle academy. The type where some mysterious threat suddenly attacks the world and the only thing that can stop them are a group of high school students with special powers gathered at a special boarding school who are all girls except for the protagonist who somehow also has powers despite being male. I’m perfectly fine with the archetype and trope set used and in general don’t mind generic anime, though in such cases ...
Jul 26, 2021
Imagine being stuffed into a crate and sent to an island of cute anime girls. Alright the cute girls part doesn't sound so bad but that's really the only likeable quality of Juuou Mujin no Fafnir. I tried grasping at straws but this anime for is something I cant really recommend for fans of any genre... Do you like action? Well they do have cool lasers and explosions but the thing is everyone almost the same move over and over again and it gets stale fast, spear shoots yellow beam, bow shoots blue beam, etc. They can call it different moves (which in of itself ...

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Recent Forum Discussion

Poll: Juuou Mujin no Fafnir Episode 11 Discussion
Stark700 - Mar 19, 2015
31 repliesby PedroKarim64 »»
May 19, 4:44 PM
Poll: Frankly,Honestly speaking Please~
VANSEDE - Apr 5, 2015
4 repliesby Mystogan14579 »»
May 9, 2021 7:21 AM
Call me immature...
OppaiSugoi - May 30, 2015
2 repliesby Mystogan14579 »»
May 9, 2021 7:16 AM
Poll: Juuou Mujin no Fafnir Episode 12 Discussion ( 1 2 )
Stark700 - Mar 26, 2015
64 repliesby Kirukato05 »»
Dec 3, 2020 7:38 AM
Poll: Juuou Mujin no Fafnir Episode 3 Discussion ( 1 2 )
Stark700 - Jan 22, 2015
66 repliesby nidoqueen106 »»
Jun 5, 2019 3:54 PM