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Nightmare Fortress - Majin no Jousai  
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Main storyline: There is a kingdom on a island somewhere in the four seas. All was well until one day it was attacked by an army of Demons via Sodomy - and of course the Prince of this kingdom was taken prisoner by the Devil King. With his last strength, the Prince casts a spell that takes this island to another realm, making it invisible - so that this "carnage" is maintained. Our main two characters are the Princes #1 bodyguard, and the bodyguard's protégé - so thus begins their quest to regain the kingdom, kill the demons, and save the Prince. But it won't be that easy, cause watch out the Demons are always ready for a thorough tumble!

Volume 1 Extra - Kaneo-sama's New School Term
Suehirouhji Kaneo, heir to a very noble family, transfers to a public high school with the ulterior motive of letting the "teachers have a taste of a humiliating kiss," which usually ends up in the teacher being dismissed. Will the new teacher fall for Kaneo-sama's charm/tricks?


Related Series

Associated Names
Majin no Jousai
Nightmare Fortress
Nightmare Fortress ~Majin no Jousai~
Nightmare Fortress ~魔神の城塞~

Groups Scanlating

Latest Release(s)
v.1 c.5 + Extra by Dangerous Pleasure over 10 years ago
v.1 c.4 by Dangerous Pleasure over 10 years ago
v.1 c.3 by Dangerous Pleasure over 10 years ago
Search for all releases of this series

Status in Country of Origin
1 Volume (ongoing)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 7.1 / 10.0 (109 votes)
Bayesian Average: 6.99 / 10.0
 13% (14 votes)
 17% (19 votes)
 23% (25 votes)
 15% (16 votes)
 12% (13 votes)
 6% (6 votes)
 3% (3 votes)
 3% (3 votes)
 5% (5 votes)
 5% (5 votes)

Last Updated
April 12th 2016, 2:41pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Magazine Be x Boy (Libre Shuppan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #464 increased(+241)
Monthly Pos #1341 increased(+191)
3 Month Pos #2178 increased(+414)
6 Month Pos #3142 increased(+684)
Year Pos #3921 increased(+1485)

List Stats
On 402 reading lists
On 163 wish lists
On 31 unfinished lists
On 122 custom lists

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Forum Posts
Nightmare Fortress vol 2? 8 months ago

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User Comments [ Order by usefulness ]

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Really great but...   
Rating: 9.0 / 10.0
by RocketDive
May 1st, 2013, 5:33am
I gotta say, after finishing the first volume I am VERY happy to have found this.

As far as the negative ratings and comments, it's understandable. The plot (and characters and dialogue) is definitely confusing at times but this is just another one of those mangas that try to make a plot instead of having it filled with mindless smut. Even so, the artwork is really great. It's similar to Ayano Yamane's style but I personally prefer this author's style much more. bigrazz

As far as the sex and all, the best way to describe it is it's displayed in a hentai manga's fashion but only difference is it's, well, yaoi. But I absolutely love this mix being a fan of both hentai and yaoi. I was also absolutely thrilled to find a futanari (not sure whether to label her as a futanari or new half but...) in a yaoi manga.

Minus the confusion of the plot, the atmosphere is definitely to my taste. That's why, even though I'm not giving it a perfect 10/10 it's one of my favorites. It wasn't that interesting at first but do read on, it gets even better as it goes on. I actually got carried away and read the whole volume in one night. But seeing now that there has been no word on volume two yet, I'm regretting that decision though. Really hope to be surprised with a volume two, otherwise that's one terribly abrupt cliffhanger ending.
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crush at Suiran and Bael   
Rating: 7.0 / 10.0
by Suiran
September 11th, 2012, 4:06am
I had 3 times read this manga and even now "What the hell is Incompleted ?!" i love the story one of my favorite genre super natural..! Do you know what the hell happen this manga>>?? where the vol 2?! is sensei hold this manga/??
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Waste of TIme/But Well Drawn   
Rating: N/A
by Yaoichick
August 26th, 2012, 8:41am
It says it is completed. It just ended. It is incomplete? did they cancel this seriesconfused It even says "to be continued' but I can't find it anywhere, or a volume 2? If you are looking for something that has a good ending, this is not it. I was following along pretty well until it just ends.

If you are looking for something that is well drawn and has many sex scenes, then this is good for you. I personally, like a good plot and a good ending, or else it is just a waste of time.

As a previous person stated, this is a story is just an excuse for sex scenes.
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The key to understanding the story...   
Rating: 8.0 / 10.0
by purplesh
January 29th, 2010, 1:54pm to read the "Description" above and keep it in mind while reading the through the chapters. I swear, you'll start appreciating Ogasawara-sensei's humor and you'll be able to tell the the characters apart.

The way Uki Ogasawara-sensei narrated this story is very confusing as each chapter starts at a "different angle" but ends on one common flow. The sad thing about the plot is that it's buried and not quite noticeable on the surface so you really have to pay attention.

The story really is interesting once you understand it. Just be patient and slowly take your time to absorb what the hell is going on. biggrin
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sex-crazed yaoi on drugs   
Rating: N/A
by sunflower
July 26th, 2009, 9:19pm
This is pure crack. There is a plot buried in there, and it looks to be an interesting one, but really I think you're best off approaching this with alcohol in hand or better yet already in your system (erm, assuming you can legally drink it ^^wink and just laughing your ass off at everything that makes you think 'WTFconfused' You'll be laughing a lot.
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great great smex!   
Rating: N/A
by jcie069
May 12th, 2009, 8:37am
the people down there just don't get it.. this story is simply perverted men that when they came contact with each other expect SEX! and if they are group of men, then its orgy. smile nope, just kidding. hoho but its true. theyre talking about some demons making out with humans which that doesn't make sense so just think about what i said earlier so you wont get confuse about the story coz its really really crazy. bigrazz but theres A LOT of it. so enjoy.

... Last updated on May 12th, 2009, 8:39am
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Interesting Story   
Rating: 9.0 / 10.0
by Chira00
January 30th, 2009, 2:59pm
You really have to pay attention to what is being said to know what is going on or you will definitely be confused. It is an interesting story. Clues are given but only a little at a time, so at first you are not quite sure what is what or who is really the enemy and what they are after. I am really looking forward to reading more and solving more of the mystery.
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Definitely my type of Yaoi.   
Rating: N/A
by ilikeyoumorethaneggs
October 28th, 2008, 7:04am
I agree with everyone, this is a hell of a confusing storyline and somewhere down the line, I had absolutely no idea what was going on especially when there were 2 dark-haired (or possibly more?) males added to the mix whose identities were not explained properly. Contrarily I got the gist of it and it was enough to get me through it. Now onto the sex, judging by the reviews you can tell this one special piece of Yaoi material when it comes to sex-the men are drawn fantastic and the penises have details! Sorry if that was explicit but if you've read Yaoi where somehow the male's privates turns into some gentle blurred lines or just disappears altogether, then this is definitely a change because she draws everything and there's a lot of sex packed into such a little volume. The plot itself isn't bad, I was really excited when I started reading it but it's how it unfolds, you just don't know who is who out of the new characters. Lots and lots and lots of bishies and exquisite art. Maybe I'm a hentai, but I am loving this strange sexalicious story.

Okay updating this because I reread the story carefully AND I UNDERSTAND IT, WHICH MAKES IT SO MUCH HOTTER smile Also I thought this was complete! I'm looking forward to more smile

... Last updated on June 2nd, 2010, 7:09am
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haa? what is this story about? XD   
Rating: 8.0 / 10.0
by Ameonna
October 7th, 2008, 8:31am
lol. I swear, I never had enjoyed of a messed up story this much. bigrazz the art is really super. you may not see such a gorgeous and hot guys any where else and the sex is pretty amazing. orgies, gang rape, S&M, cosplaying, any thing you like you will find it in it! but the story is really confusing. it took me a while to understand what was going on and at the end I found the concept of the plot line so lame and stupid but still the beautiful and hot art of it makes it worth to give it try. and I have to confess that I also fell under the spell of sensei, she is just a great artist despite the stupid, lame story line.

... Last updated on October 7th, 2008, 8:32am
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Rating: 3.0 / 10.0
by grumble_cakes
October 6th, 2008, 12:40pm
this had to potential to be fun-sexy-stupid but it's just stupid-stupid. The plot and settings are incoherent and there is so much sex I found myself skimming over the sex scenes in an attempt to get back to the "plot". The art is nice but there were too many dark haired characters and it was hard to tell the difference between them. The main couple has no chemistry and none of them are interesting.

I kind of wonder if the mangaka is female because there is something very masculine about this title and another title I've read by her.

... Last updated on October 6th, 2008, 12:40pm
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