Isekai Maou to Shoukan Shoujo no Dorei Majutsu

How Not to Summon a Demon Lord

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Alternative Titles

Synonyms: The Otherworldly Demon King and the Summoner Girls' Slave Magic
Japanese: 異世界魔王と召喚少女の奴隷魔術
English: How Not to Summon a Demon Lord
German: How Not To Summon A Demon Lord
Spanish: How not to Summon a Demon Lord
French: How Not to Summon a Demon Lord
More titles


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Jul 5, 2018 to Sep 20, 2018
Premiered: Summer 2018
Broadcast: Thursdays at 21:30 (JST)
Licensors: Funimation
Studios: Ajia-Do
Source: Light novel
Genres: ComedyComedy, FantasyFantasy, EcchiEcchi
Themes: HaremHarem, IsekaiIsekai
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 6.891 (scored by 363983363,983 users)
1 indicates a weighted score.
Ranked: #43842
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #271
Members: 613,745
Favorites: 2,328

External Links

Streaming Platforms

Ranked #4384Popularity #271Members 613,745
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When it comes to the fantasy MMORPG Cross Reverie, none can match the power of the Demon King Diablo. Possessing the game's rarest artifacts and an unrivaled player level, he overpowers all foolish enough to confront him. But despite his fearsome reputation, Diablo's true identity is Takuma Sakamoto, a shut-in gamer devoid of any social skills. Defeating hopeless challengers day by day, Takuma cares about nothing else but his virtual life—that is, until a summoning spell suddenly transports him to another world where he has Diablo's appearance!

In this new world resembling his favorite game, Takuma is greeted by the two girls who summoned him: Rem Galeu, a petite Pantherian adventurer, and Shera L. Greenwood, a busty Elf summoner. They perform an Enslavement Ritual in an attempt to subjugate him, but the spell backfires and causes them to become his slaves instead. With the situation now becoming more awkward than ever, Takuma decides to accompany the girls in finding a way to unbind their contract while learning to adapt to his new existence as the menacing Demon King.

[Written by MAL Rewrite]


Based on the light novel series written by Yukiya Murusaki. The light novels have been translated to English under the title How NOT to Summon a Demon Lord, published by J-Novel Club since December 4, 2017. The series has also been adapted to a manga written by Naoto Fukuda, published by Suiyobi no Sirius since June 2015.

Related Anime

Characters & Voice Actors


Murano, Yuuta
Director, Storyboard
Motoyama, Satoshi
Sound Director
Fudeyasu, Kazuyuki
Script, Series Composition
Mori, Takeshi


Opening Theme

Apple Music
Amazon Music
Youtube Music
"DeCIDE" by SUMMONERS 2+ (Yuu Serizawa, Azumi Waki, Yumi Hara, Rumi Ookubo, Emiri Katou)

Ending Theme

1: "Saiaku na hi demo Anata ga Suki" by Yuu Serizawa (eps 1-11)
2: "DeCIDE" by SUMMONERS 2+ (Yuu Serizawa, Azumi Waki, Yumi Hara, Rumi Ookubo, Emiri Katou) (eps 12)

Sep 20, 2018
KANLen09 (All reviews)
Here we have another isekai-harem LN adaptation, as is though shared with many similar series of the kind, and this season alone, This is the ONLY Isekai LN adaptation that you should watch this season (and going forward) as it's largely competent on the likes of Overlord (similar but different)?

And also, just go for the uncensored version of the anime, that always helps if you love insane amounts of fanservice with boobage, ecchi shots and whatnot! You can thank me later.

Here we go again...yet another "transported into another world" (more like self-inserted) fantasy series of some random dude who managed to beat the game, know read more
Sep 20, 2018
Stark700 (All reviews)
Ever wanted to know what it feels like to own someone? I’m not talking about people who you hire or a business partner. I’m talking about if you actually hold ownership of someone like a slave. Taking on the role of a protagonist in a fantasy world is no easy task. Even for a guy like Sakamoto Takuma, he may be an experienced gamer but he’s never been equipped to deal with a life changing event such as being transported into the very game he played. After becoming “Diablo”, he learns that the hard way.

Isekai Maou no Shoukan Shoujo no Dorei Majutsu (otherwise known as read more
Sep 20, 2018
TakaTempest (All reviews)
If I had a choice to kill off a genre it would be Isekai. Out of all the anime genres, the Isekai genre seemed to be the one to annoy me to end due to how poorly written and pandering most of the shows of the Isekai genre are. Say all you want about ecchi + harems but least they are for the most part dump fun shows that respect its own target audience not to mention most of the ecchi + harems anime are self-aware of how cheesy and for the most part bad they are. However, this self-awareness rarely happens in Iseaki as read more
Sep 20, 2018
Zaber_san (All reviews)
Summer 2018 had been a ride of an anime this year. From the unexpected Season 3 of Overlord, the return of a massive anime Attack On Titan, to the anime where summer is all about the fun as well as isekai shows that needed to be judged alot. This summer, we have plenty of isekai to judge on and one of them is "How Not To Summon A Demon Lord." where at first it looks like it is another isekai trash with uncapable of a protagonist, although at least it is not like that. Also, for some reasons, I call this show a lite version read more

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Why do people like this show?
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