Welcome to the Impregnable Demon King Castle – The Black Sorcerer Is Offered a Seat as a Member of the Demon King Army’s Top Brass After Being Kicked out of the Hero’s Party Because They Didn’t Need Debuffs

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“The Hero defeated the Demon King in the war of men against demons…” Those kinds of stories are a thing of the past. Nowadays, adventurers, demons, Heroes, Demon Kings, and so on are all occupations that no longer involve putting one’s life on the line. Peace has returned to the world, and dungeon exploration has now become a form of entertainment. Adventurers and monsters now all fight using clones they’ve created with magic in an extremely popular form of dungeon clearing where nobody dies. The footage of the dungeon getting cleared gets broadcasted all across the continent, and I’m a member of a Hero’s party that was ranked the 4th most popular in the world… but not anymore. Parties had a limitation of 5 members, and I was told that an unpopular job like Black Sorcerer would only get in the way of getting to 3rd place or beyond.

Now that I became unemployed, I was forced to find another party but I just couldn’t find one. One day, I encountered a beautiful blonde red-eyed woman who told me she had a job for me. After being so touched from having someone recognize my abilities far more than my past comrades, I ended up agreeing to take an interview without asking for the details. When I arrived at my destination, I was at the world’s hardest dungeon where no party has ever reached the final area, the Demon King Castle, where the Big Four and the Demon King were waiting for me. This is the story of a Black Sorcerer that was kicked out of a Hero’s party and joined the side of the Demon King Army to repel the Heroes.

Associated Names
One entry per line
Nankoufuraku no Maou-jou e Youkoso ~ Debuff wa Fuyou to Yuusha Party wo Oidasareta Kuro Madoushi, Maou-gun no Saikou Kanbu ni Mukaerareru ~
難攻不落の魔王城へようこそ~デバフは不要と勇者パーティーを追い出された黒魔導士、魔王軍の最高幹部に迎えられる~
Related Series
N/A
Recommendations
Expelled SSS-Rank Architect, Rebuilding the Demon Kings Castle! (1)
The Kicked Out S-rank Appraiser Creates The Strongest Guild (1)
Unfairly Fired From the Healer’s Guild After Five Years of Dedicated Service – Despite Always Being the Weakest, With My Super-Ultimate Skill in Hand, I Aim to Become the Strongest! (1)
I Was Banished From the S-rank Party for Being “Useless”, so I Decided To Make My Own Strongest Companions Using [Appraisal] and [Healing Magic] -Before I Noticed, I Was Being Loved by the S*aves and Empresses Who Helped Me and Became the Strongest in the World! (1)
Recommendation Lists
  1. Betrayal / Exile / Kicked Out
  2. Novels with manga
  3. List of Betrayal/kicked out
  4. Easy Going (The Reckoning)
  5. Series I find interesting.

Latest Release

Date Group Release
10/20/21 Light Novels Translations c129
10/18/21 Light Novels Translations c128
10/15/21 Light Novels Translations c127
10/13/21 Light Novels Translations c126
10/09/21 Light Novels Translations c125
10/07/21 Light Novels Translations c124
10/02/21 Light Novels Translations c123
09/29/21 Light Novels Translations c122
09/26/21 Light Novels Translations c121
09/22/21 Light Novels Translations c120
09/20/21 Light Novels Translations c119
09/15/21 Light Novels Translations c118
09/11/21 Light Novels Translations c117
09/08/21 Light Novels Translations c116
09/04/21 Light Novels Translations c115
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Review
9 Reviews


shelwyn
New shelwyn
Sep 26, 2021
Status: c20
I want to clarify something, the top reviews complained about their relationship a lot but it is clearly explained in chapter 51. This is a heavy spoiler but it's all clearly explained.

The relationship is progressing well, although she was already crushing on him they only really started to know each other for a few days. They've been spending time with each other and dating basically.

She's not a succubus guys why do they need to f*ck immediately? Maybe they're more traditional and won't take the final step until marriage but for... more>> now it's a clear progression of a new boyfriend and girlfriend getting to know each other and slowly meshing into each other's lives.

Spoiler

「It seems like you have been sleeping well, I am glad.」 This all started on the day my blood was sucked by Milla. That’s when we became sleep buddies. It’s a strange relationship where we are closer than friends, but not lovers either. We met two years ago, but we only truly got to talking and getting to know each other for only a few days at that time. It would have been hasty to take the relationship to the next level so soon. Ever since I started living in the staff quarters, the time that I spend together with Milla has drastically increased. That is to say, like this. In my apartment. At first, she just wanted to come along while I did my grocery shopping, but then she wanted to treat me to her cooking and then later got drunk on beer. I couldn’t let her go home like that, so I offered her my bed. I was gonna sleep on the floor, but she said we were sleep buddies so it’s not a problem, and forced me to sleep on the bed with her. Ever since that day, she has been coming to my place almost every day. Honestly, I don’t have any life skills so Milla has been extremely helpful. It’s fun when she’s around and while it might be bad for my poor heart, I’ve recently been able to talk with her more naturally. Although I have noticed that more and more of her personal belongings are left in my apartment as the days go by. She also shows me her vulnerable side sometimes, and she often wears my clothes as she pleases, for some reason. Our relationship should be deepening steadily. However... As the word「buddies」suggests, we are not lovers. 「I’ve noticed too. Lately, my sleep has been somewhat deeper... Perhaps because of how comfortable it is.」 「Indeed, so please don’t worry. Besides... 」 She puts one hand on the bed. The mattress sinks slowly as she moves closer. Her face comes close to mine. Her golden locks falling smoothly. 「If I did not like being touched, I would not be sleeping together with you.」 She says while breathing out a long sigh and giving a bewitching smile. 「And I believe... even you feel the same.」 「That... 」 Before I could say anything, she placed her white, delicate finger on my lips to stop me. 「And for that purpose, I must entice Lem to assault me with love rather than lust.」 Saying that, she pulls away. 「Let us make breakfast. Operation Through his Stomach continues today as well.」 This time, she gives a smile like that of a sweet maiden. She truly is a woman of many faces, and the troubling thing is that I find every one of them charming. A hero never loses in battle, but somehow I feel like I keep losing to her. At any rate, this is how the morning starts for the Demon King Army’s Chief of Staff. There was a small incident, but my new everyday life begins like this, waking up next to Milla.

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Fluffums
Fluffums
Aug 14, 2020
Status: c155
Another one of those "They didn't know I was useful so I got kicked out of the party" stories, except this time even if they knew they were right to kick him out! Because when fighting is entertainment, a guy using abilities with no visible effect is boring, so if you want to be #1 in the world it's much harder to include a guy like that, even if it does make it much easier to win fights.

It's also nice that the main character has support-type abilities, so even when... more>> fights revolve around him, he has to adapt to the allies he's working with currently. That makes each fight scene and each arc different. The setting is developing pretty well and the magic/combat system is solid. The fights are entertaining... and it makes sense for people to use really flashy attacks or save second forms and special abilities for the last minute.

The only reason this isn't a 5* review is the romance part... If a woman goes out of her way to sleep in the same bed as a man, you'd normally think she's attracted to him, right? 155 chapters of a beautiful woman throwing herself at the protagonist at every opportunity and yet he still doesn't seem to think there's a chance of them being a couple. There are also fake harem elements with all sorts of women relying on him and getting closer. Fake for the same reasons I consider the romantic elements to be terrible, super dense protagonist, and also because the main heroine is yandere and might kill the protagonist if he showed signs of being interested in other women.

Spoiler

As a side note, it slightly bothers me that they use the Lemegeton and a limit of 72 demons, and many characters have the right names, yet he contracts right away with Carmilla and later with someone named Thor. It's fine if their original name isn't a Goethia demon to keep the reader from automatically knowing the character will be a comrade, but they could have had a different name for the avatar he summons, and it's kind of sad that he will never be able to collect all 72 of the original demons.

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Nosebleed331
Nosebleed331
Apr 18, 2021
Status: c50
Interesting idea, horrible execution.

What caught my attention immediately is that the MC is way too positive and happy-go-lucky after years of verbal and mental abuse. He doesn't feel like a real person at all, and is totally unrelatable.

Another thing I don't understand is, if his control of dark magic is so great, then why couldn't he have just made it seem like he was actually contributing in battles whilst hiding his real skill level, so it wouldn't attract too much attention? Why erase all traces of your contribution and make... more>> it seem like you're doing nothing? Obviously people will assume you're profiting off of the relationship with your best friend - I don't blame them, you presented yourself that way.

Moreover, this story is incredibly black and white. Why are 'heroes' seen as heroes? They are literal pieces of entertainment for the mass media. You are not a hero, because you possess a 'hero' class and you put on a show everyday. That's just f*cking ridiculous. An actual hero would've - for example - set up an organization to help people who get assigned classes such as 'prostitution', and don't get a chance to succeed in life, or combatted the power abuse that is rampant in dungeons (see backstory of vampire lady).

Lastly, all the characters in this story (including the MC), maybe expect for Fenix, the MC's best friend, are incredibly one-dimensional. The relationship between the MC and the vampire lady (forget her name) feels unnatural and forced too.

I liked the little girl, she was cute. <<less
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Deadmilkmen
Deadmilkmen
Aug 29, 2021
Status: c110
Nosebleed331 summed it up fairly well.

I checked the raws up to ch200, still zero romance between MC and the female lead. Yet the author keeps throwing women at the MC that fall madly in love with him.

This MC isn't just dense, he's a neutron star. A female throws herself at him, he likes her. She's in love with him and has her reasons why. She starts staying over at his house, cooking him breakfast. They sleep together, but just sleep! No touching of course. This MC still just calls her... more>> a friend and doesn't know how to react to her. She's come on to him in the absolute most obvious way. If you don't like her, or you need time to recognize your feelings, that's okay.

f*cking say that then. This female character bends over backwards for the dude and he's all "hey thanks pal" yet the author is trying to write him as a nice person.

A 20 year old man is sleeping in the same bed as a woman who says she loves him and has shown it/proved it in multiple ways and he's like "but what does this mean?" It's the pinnacle of dense MCs. It's so ridiculously absurd that I can't wrap my head around it.

This novel is garbage. The entire premise is garbage. "We're heros!" No you're not. You're TV stars. It's just bad. <<less
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Fatim
Fatim
Jul 29, 2020
Status: Completed
I just say this story' is enjoyable, ITS like he become the demon lord hhe... Give it a try

The MC is kinda deptesssing I mean he must hide his power because of a childhood promise with his teacher so he is unable to shine at least until he become the demon lord (?)

My favorit part is

... more>>
Spoiler

after ge defeated the hero and friend, he meet again with the Hero and friend outside and BAMMMM!!! he reveal that he is the demon lord hha! MOTEOVER WITH ALL OF HIS OTHER DEMON FRIENDS (FLOOR BOSS) HAHAHHAA!

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blueonyx
blueonyx
May 14, 2021
Status: c59
The story is good but sometimes it feels as if they're repeating facts and exposition too much, the dynamic of Fénix and Lem is your typical good rivalry but it's interesting, and his relationship with his master is very intriguing

I did skip a lot of chapters specially the Mila ones, her character seems too one dimensional and her whole deal with Lem is annoying
2 Likes · Like Permalink | Report
Hikaru2
Hikaru2
Feb 27, 2021
Status: c56
Surprised.

This is the only way I can describe my emotions.

I saw this novel wayyyy back then but never really tried after reading the synopsis. I thought it was just the same kind of revenge story where MC is treated badly then later we learn that he is badass and now he takes revenge bla bla bla.

... more>> Only this isn't so.

So this morning I was bored and all and thought. Why not just give a try. And man I don't regret it. I binge read it in one go. I wouldn't say the story is the best I ever read. But the writing flow well and the main casts are very likeable. What's more even those not likeable aren't one dimensional.

The world isn't simple demon vs hero. But rather its a business. Basically it's like football or any other sport.

The MC is really powerful and he knows he is but he is power isn't really flashy since it's debuff and his true job would give the bad kind of attention.

Anyway the MC is indeed underestimated, but the focus of the story isn't about a poor whimp who only cry at his destiny.

It's a little slice of life with some hot blood moment and the romance is believable.

The MC isn't dense as one said since they basically confirmed their relationship before CH 30. Just because they don't have s*x doesn't mean MC is a whimp. The story isn't harem (at least as of CH 56).

All in all, you should give a try and see for yourself. <<less
2 Likes · Like Permalink | Report
Ntr Hunter
Ntr Hunter
Jun 20, 2021
Status: c92
It's good but there are some flaws like the MC was actually an extraordinary person but still has problem in just tapping out the other stronger people even after coming out a little bit. At sometime you'll see him being referred to as the greatest underdog man currently but also at the same time he has hard time fighting one-on-one to a member of top 100 party. Although he was made a character like a underdog, but it didn't really felt like it sometimes.
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Jarhead._.Lee
Jarhead._.Le
Mar 24, 2021
Status: --
The storyline is well-done as far as the ones on this website. Lem gets his revenge pretty early on (40~ish), so we don't have to wait far too long. One thing consistent with a bunch of JP tropes are - no romantic progress + prefer to stay in the background which are the main reasons to dislike the novel. Regardless, it's still a very good (to me) novel, even if the early chapters aren't that interesting, it does get better.
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