Unlimited Fafnir


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With the sudden appearance of the monsters that came to be called dragons, the world had completely changed. Before long, supernatural girls with the power of the dragons, called “D”, were born within the human race. The secret existence of the only male “D”, the boy Mononobe Yuu, was forcefully thrown into the school where the girls of “D” gathered – Midgard, where he saw the naked body of one of the students, Iris.

Furthermore, upon meeting his long lost sister Mitsuki, Yuu seems to have been enrolled into this school…!? “When there’s really no other choice, Iris, I will—kill you.” “Can I really… believe you?” The curtains open as the “one and only story” about the boy who was supposed to become the strongest assassin and the poorly performing girl unfolds—! Unlimited School Battle Action!


A 3 chapter prequel side story was released alongside some of the anime blu-rays titled ‘Unlimited Fafnir Gaiden – Brynhildr Valkyries’ focusing on the Brynhildr class prior to the start of the main series.

Associated Names
One entry per line
Juuou Mujin no Fafnir
Juuou Mujin no Fafnir Gaiden - Brynhildr Valkyries
Unlimited Fafnir Gaiden - Brynhildr Valkyries
銃皇無尽のファフニール外伝 ブリュンヒルデ・ヴァルキリーズ
Related Series
Seirei Tsukai no Blade Dance (1)
Strike the Blood (1)
Absolute Duo (1)
Akashic Records of the Bastard Magical Instructor (1)
Hundred (1)
Kikou Shoujo wa Kizutsukanai (1)
Recommendation Lists
  1. Novel To Read

Latest Release

Date Group Release
02/27/21 bakapervert v14c1
02/27/21 bakapervert v14 prologue
02/27/21 bakapervert v14 illustrations
02/25/21 bakapervert v13 afterword
02/25/21 bakapervert v13 epilogue
02/25/21 bakapervert v13c4
02/23/21 bakapervert v13c3
09/13/18 Baka-Tsuki v13c2 part2-4
01/25/18 Baka-Tsuki v13c2 part1
01/30/17 Baka-Tsuki v13c1
01/29/17 Baka-Tsuki v13 prologue
09/28/16 Baka-Tsuki v12 afterword
09/28/16 Baka-Tsuki v12 epilogue
09/27/16 Baka-Tsuki v12c4
09/25/16 Baka-Tsuki v12c3
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3 Reviews sorted by

nwms8 rated it
December 7, 2015
Status: --
The world building:

In typical Japanese fashion, there is a crazy setting. World gets attacked by dragons (nothing new, it’s Japan) and the only thing that can save them is a bunch of little girls. Yup. And then they will put all the girls on one island, because obviously the dragons will not nuke them all at once and kill the only resource available to mankind to defeat these dragons. Why do the dragons not attack the island at once? It isn’t clear – the first few books create the scenario... more>> where the girls can’t handle more than one dragon attack at a time. What is creepy is that even the dragons want to sleep with these little girls. The dragons put dragon symbols on a bunch of girls, give them super powers with a time bomb like feature. When a dragon gets horny, a random girl with a dragon symbol will be selected. That girl will have to evade the dragon. If she gets caught, she will turn into a dragon and get r*ped. In addition, as soon as the girls have s*x or turn 20, these powers disappear. Even dragons want virgins and lolis. If you are familiar with Japanese novels, this kind of creepy ass sh*t is nothing new.

The main character:

Typical Japanese harem bait. Useless as f*ck in a conversation but secretly a super assassin with life issues. A whole bunch of issues. And of course, in a world filled with little girls, only he can unlock their hearts and save mankind. Girls will all want him just because he says ‘hi’ and will fling themselves at him and get jealous and overreact to everything. No, thanks, this book isn’t for me. I have a preference for MCs with their own set of values, ambitions and confidence. I had a huge headache by book 2 and will not continue to read further. Evidently it has a lot of favorable feedback, but I do not think this is meant to be read by anyone older than 15. <<less
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Lachiel rated it
October 24, 2015
Status: --
Another "Only male in the world!" who has something only females tend to get. Our MC is a trained killing machine for the military.. Or whatever it is. We get to watch him be single and ready to mingle in.. You guessed it! Another all female school on a island! Whoohoo! There's a good amount of action to mix in with the fan service and romance~

I recommend this to anyone who likes Blade Dance, Infinite Stratos, HSDXD, and any other male in a female school novel~.
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KPBaron rated it
July 16, 2020
Status: v13c2
I really like the story, and I am quite disappointed that there was no update after two years and the novel already finished three years ago. I wanted to know what happened next and there's no spoiler for me to read. I can't even find the raw version to read. I hope that Baka-Tsuki continues translating this novel or someone would pick this up and translate it. And do not get me wrong, Baka-Tsuki did an amazing job translating the novel and I love their work, it just that I... more>> really want to know what happened next in detail and I got really depressed when there's no update since 2018. <<less
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