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Lazy Dungeon Master #1

Lazy Dungeon Master, Volume 1

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"Come on, kill all those bandits for me already!"

"No thanks. I don't wanna do any work."

My name is Keima Masuda, and my hobby is spending each day doing exactly nothing... but one fateful night, I was summoned to another world where I met a blonde young girl who I named Rokuko. It seemed that fortune had favored me and I would soon be living a wonderful life free of work. But even though I'm a guy who loves sleeping more than eating, Rokuko demanded that I help her.

"Save my dungeon! By the way, since you're the Dungeon Master, you'll die too if the Dungeon Core is destroyed."

The dungeon only had one room, and it was already surrounded by bandits.

Seriously? It's a checkmate already. I've gotta break out of this impossible situation so I can stop working and just sleep!

236 pages, Kindle Edition

First published April 22, 2016

161 people are currently reading
245 people want to read

About the author

Supana Onikage

32 books16 followers

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5 stars
232 (42%)
4 stars
173 (31%)
3 stars
103 (18%)
2 stars
28 (5%)
1 star
11 (2%)
Displaying 1 - 24 of 24 reviews
Profile Image for Siegfried.
346 reviews8 followers
January 13, 2018
Great LN. It made fun of a lot of tropes in the genre, particularly of the harem trope. The MC is aware that all the girls are into him, but his main reason of existence is sleeping, so hooking up with any if them would cause trouble, and consequently, interfere with his sleep.
Other than that, he's a foot fetishist, which make things a bit more interesting than most LN.
It's really different from the usual in the genre "transported to another world".
Also, his skills and plans on the dungeon are pretty intelligent.
Great LN.
Profile Image for Love.
429 reviews3 followers
August 10, 2018
This is a fun book. It's in many ways a very stereotypical isekai (summoned to another world story), but it's a thoroughly enjoyable read. It never gets serious and is just light-hearted fun all the way through.

I have been complaining about how the English light novel scene is overflowing with isekai titles and here we get another one, and a very stereotypical one at that, and I absolutely loved it.
Profile Image for Michael.
291 reviews10 followers
June 6, 2021
Decent read, and I could see myself reading further since this is currently one of the J-Novel Club catch up series this month. Another isekai that's done well enough.
2 reviews
October 29, 2018
Interesting enough for me to read through it pretty quickly. It has a really interesting premise, but it's kind of hard to ignore the author's fascination with flat chested girls of questionable age (and some that are pretty clearly underage, but it's okay since it's a fantasy world and the girl isn't human :^)). I guess I'd love to see this premise but for a more mature audience.

The translation is good, and I can't blame the translator for working with what they had. If you can get over the lolicon aspects, it's enjoyable enough but if you can't understandable.
148 reviews1 follower
August 13, 2018
Took a new spin onto the "brought to a new world" theme of Isekai genre. I hope there is a book / volume 2. Not so keen on the slave girl getting a name that was, in the book, akeen to meaning "sex slave" even though she was not thought of nor used for such.
Profile Image for Rhnzz111.
20 reviews1 follower
December 3, 2024
Lazy Dungeon Master offers a unique twist on the typical fantasy story by focusing on the dungeon master rather than the traditional hero. The protagonist, who takes on the role of overseeing and managing a dungeon, presents an unconventional yet refreshing narrative. This shift in perspective allows readers to experience the world from the point of view of someone who is not out saving the day, but rather managing the chaos in a much more understated yet fascinating way.

One of the standout features of the book is its excellent story build-up. Rather than relying on quick, multiple jokes like Konosuba, Lazy Dungeon Master takes its time to develop a storyline that culminates in a strong climax or punchline. This slower, more deliberate pacing creates a sense of anticipation, where each scene and decision builds upon the last to lead to a satisfying and often humorous conclusion. While it may not have the rapid-fire wit of Konosuba, the payoff from the lead-up is equally rewarding, with carefully crafted moments that land perfectly when the punchline finally arrives.

The protagonist is a genius with a ruthless and rational personality, making him an intriguing and often unpredictable character. His approach to solving problems and managing his dungeon reflects a sharp, calculated mind that is willing to do whatever it takes to get the job done. His cool-headed decision-making and lack of emotional attachment provide a stark contrast to many of the more typical, impulsive heroes found in other fantasy stories. This adds a layer of depth to the character and makes his actions both intriguing and at times, morally complex.

However, Lazy Dungeon Master does contain some controversial and uncomfortable elements, such as fetishes like foot and lolicon, which may not sit well with all readers. These aspects can be off-putting, and some may find them distasteful or inappropriate. It's important for potential readers to be aware of these themes before diving into the story, as they could significantly impact the enjoyment or comfort level of those who prefer more conventional or sensitive material.

The book also boasts a satisfying ending that ties up the various narrative threads in a clever and logical way. The resolution is not only well-executed but also reflects the protagonist’s personality and his journey, offering a strong sense of closure while maintaining the book's humor and unique charm. The problem-solving elements throughout the story are sharp and inventive, showcasing the protagonist's intellect and ability to navigate challenges in a way that feels fresh and engaging.
Profile Image for JM.
88 reviews
October 15, 2025
If you can ignore the light ecchi elements, there's some fun Dungeons style setup here, with some creative bending of the rules and a protagonist who does his level best to cleverly do the absolute bare minimum, exploiting any loophole to maximize his downtime. Some highlights include making the entire dungeon out of golems, and building the dungeon out into the world so you can farm points by having heroes visit the 'spa' and technically earn points for them having visited. Involving other dungeons in a ranking system adds tension, but this is primarily a lighthearted series.

Unfortunately, the creative elements run out as the series goes on, and you start to get some dumb things like a religion based around naptime. By this point, the ecchi elements also get out of hand and go from ignorable to unacceptable, and it becomes a series DNF for multiple reasons.
Profile Image for Peacefulbookery.
539 reviews
May 8, 2024
Ecchi/H, pseudo-harem, slice-of-life LitRPG, with otaku MC isekai'd (via gacha pull) to assist a tsundere pettanko dungeon core.

...Not a series I'd recommend to readers unfamiliar with light novels.

If you are familiar, you'll probably have a good idea whether you'll like this or not. The MC's dungeon management strategies aren't bad, but his entire personality consists of him 1) not wanting to work (lol) and 2) insisting he's into feet but not lolicon (debatable). The female characters are one-dimensional stereotypes - which is wholly unremarkable in these types of series. There are no subversions or surprises here.
Profile Image for Wetdryvac.
Author 480 books6 followers
March 26, 2025
Based on recommendations, I'd been looking forward to this, and the translation is solid. Ditto nifty plot elements. Five stars for that.

However. Sexualization of children does not fly, even if the excuse here is, "A dungeon core has adult and kid form." Translation *specifically* describes the lead character wanting to touch the chest of the child form of the dungeon core, and the hell with that - I'm out.
Profile Image for David Anthony Beard.
238 reviews
May 13, 2021
It neither the best thing out there or the worst thing. It is good enough to keep going. The concept is interesting. It is a guy obsessed with sleeping and hates to work but is now dungeon master who is working so he can sleep. He also has weird foot fetish not sure how about that. Either way it good enough to read the next one.
Profile Image for Swapnil Basher.
5 reviews
July 17, 2022
Different from other dungeon type light novels . Each volume is fun to read , plot twister at the last parts that will make you at the same time laugh , feel the suspense .
Supana Onikage has made a wonderful world inside this LN . You'll love the main character Keima Masuda and his lazy of life , how he utilizes his laziness to conquer his problems.
44 reviews
October 29, 2018
This was a really fun read, and while typical of the genera, the author still demonstrated a great deal of creativity within the framework they setup.

The protagonist was nice as well. Instead of being perfect, or darkly flawed, he was just lazy, as the title clearly states.
2 reviews
August 23, 2022
Meh. The idea of a Isekai where our protagonist is a part villain part 'survivor' is pretty interesting, however the abuse of "Ecchi scenes" quite hit off my own mark.

A almost well done script, however.
33 reviews2 followers
February 13, 2019
My first light novel

This being my first i didn't know what to expect but to my surprise it felt like a anime an ill be trying out more light novel's.
11 reviews
March 24, 2019
Coo

Super coo Jains kanaka Jan s is an kana. Jsnana jsna. Sims Na. So sj s Na is Na Na
Profile Image for Howard.
431 reviews2 followers
September 24, 2019
Although there were some cringe worthy moments here and there the overall humor and strategy aspect of the story made this a great read.
Profile Image for Fred.
26 reviews9 followers
January 29, 2020
Slow start, but surprisingly witty and interesting

A definite fluff read with some strange fetishism, but it turns an entertaining corner and had me laughing near the end.
Profile Image for Jenn.
132 reviews1 follower
November 21, 2021
This was a lot of fun. I started it because the concept sounded like Sleepy Princess in the Demon Castle.

It ended up being a bit more... adult? Than I expected but was enjoyable nonetheless.
Profile Image for Leeann.
515 reviews19 followers
May 28, 2024
This was very interesting and I'm glad I decided to read this light novel. The MC is hyper aware of this harmen thing that is going on. This is full of fun and I enjoyed reading this story.
Profile Image for Pablo García.
853 reviews20 followers
January 1, 2023
The main character Keima, is "won" when the Dungeon Core 695 (Rokiko) plays the "gacha" machine for 1000 Dungeon Points. So, technically this is an isekai (teleported to another world) fantasy novel series. There is a lot of good information about Dungeon management and strategy. The sexual innuendos, sexual situations were placed on the Light novel series on the behest of the publisher, according to the author. Because the main character loves to sloth and sleep, he uses his female retinue more as bed pillows than anything else.
It's not as funny as Konosuba Light novel series, and yet I find the Dungeon information that this author gives to be sensible and logical. My favorite character is Niku (although her name means sexual slave/cannon fodder in the language of this other world). She is a Dog-kin small girl that is kind, loyal and diligent. Although, technically, Keima can free Niku, he never does...He should have hired her as an employee of the Dungeon or later on as an employee of the Inn. Keima has a "foot-fetish" I've never understood, and apparently the people at the publisher's have a big boob fetish, like if someone/all of them did not get breast-milk as a baby...
The story is straight forward and because of Keima's need to always be sleeping, he always chooses the path of least resistance and surest way to overcome the thieves, adventurers or other Dungeon Cores that challenge them in the (Ordinary Cave) Dungeon
Profile Image for Pieter.
1,229 reviews17 followers
April 2, 2022
Keima is a lazy young man from Japan summoned to what appears to be a generic fantasy world. He slept through the introduction speech of the god, ending up with the dungeon core 695 (later named Rokuko) - a dungeon with the avatar of a blond haired young woman (or girl when in mana saving mode). She orders Keima to deal with a group of bandits that invaded the simple dungeon, but somehow Keima ends up being the dungeon master. What follows is the start of a light-hearted story mostly told from Keima's perspective and how he uses his brains to solve issues all with the intend to sleep as much as possible.

The big selling point for me is that Keima thinks and crafts his way through issues as opposed to brute forcing it with cheat abilities (which he might have, but we don't know since he slept through the speech from the god). The story is entertaining with likeable if somewhat simple characters. The world itself feels a bit generic. There is a hint of a harem, including the typical loli-characters, but considering Keima is not very romantically inclined and only has eyes for one, it is not really prevalent. Slavery is a thing, although Keima is not particularly comfortable with it and also makes sure Rokuko is not under his control.

So, all in all, an entertaining light-hearted read, great for its genre, but not without some flaws that might be off putting to some.
Profile Image for Alex.
190 reviews2 followers
May 1, 2019
I went into this book with low expectations. Based on what I heard about the uh “fan service” that takes place, I thought I’d be a lot more disgusted than I actually was. If reading about relatively tame lolicon stuff really repels you then stay away from this book but if you can stand it you might enjoy this one. I found the humor to be quite funny (though I will admit it does seem like something that could get real old real fast) and the characters were actually likeable. I find the main character Keima to be a breath of fresh air in a sea of protagonists that always want to save everyone always. Rokuko (whose name I cannot get right thanks dyslexia) is really cute design wise but she’s not as developed as she could have been. I’m expecting more from her character in later volumes however. Niku oh niku is my favorite character of all and she needs to be treated with only love and care and fairness and she hasn’t gotten all of that quite yet unfortunately. The final thing to note is that I believe there is something that could be considered queer baiting in here. There is a Yuri scene towards the end that is heavily hinted at as being fan service but that’s not confirmed. It didn’t really bother me all that much but if you’re really turned off by that kind of stuff then steer clear. Overall an enjoyable read and I will be continuing on though not right away as I don’t think this series is binge worthy due to the style of humor.
Displaying 1 - 24 of 24 reviews

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