Isekai Maō to Shōkan Shōjo no Dorei Majutsu (異世界魔王と召喚少女の奴隷魔術?, lit. "How Not to Summon a Demon Lord"), the series premiered on July 5, 2018, and will be broadcast on AT-X, BS Fuji, Tokyo MX, and Sun TV. Crunchyroll will simulcast the series worldwide outside of Asia, and Funimation will simuldub it. The series' opening theme, "DeCIDE", is performed by the unit SUMMONARS 2+, a group composed of voice actresses Azumi Waki, Yū Serizawa, Yumi Hara, Rumi Okubo, and Emiri Katō, and the ending theme, "Saiaku no Hi demo Anata ga Suki." (最悪な日でもあなたが好き。, "I Like You Even on the Worst Day."), is performed by Yū Serizawa and produced by HoneyWorks.

A second season titled Isekai Mao to Shokan no Dorei Majutsu Ω premiered April 9, 2021. Yū Serizawa with DJ KOO & MOTSU preform the opening theme EVERYBODY! EVERYBODY! and ending theme YOU YOU YOU.


Diablo is an ordinary human who is mysteriously transported to the world of his favorite MMORPG, Cross Reverie, with the appearance of his own character in the game, the Demon Lord Diablo. The two young girls who summoned him, the Pantherian Rem and the Elf Shera, attempt to use a spell to make Takuma their servant, but the spell rebounds, and both end up with magic collars stuck on their necks, thus becoming his slaves instead. With a serious case of social anxiety, Takuma decides to act like his character while interacting with others, and makes use of his high stats and vast knowledge of Cross Reverie's lore to survive in his new environment, traveling along with Rem and Shera to look for a way to remove their slave collars while helping them with their own, personal issues that led them to summon him in the first place.

Episode Covers

Episode List

List of Blu-ray Releases

# Title Airdate
Japanese English
1 The Demon Lord Act July 5, 2018 July 25, 2018
2 The Strongest Newcomer July 12, 2018 August 1, 2018
3 Fallen Assault July 19, 2018 August 8, 2018
4 Point-Blank War Dance July 26, 2018 August 15, 2018
5 Imperial Knight August 2, 2018 August 22, 2018
6 Slave Market August 9, 2018 August 29, 2018
7 Change of Heart August 16, 2018 September 5, 2018
8 Hero's Charge August 23, 2018 September 12, 2018
9 Holy Knight Tale August 30, 2018 September 19, 2018
10 The Demon Lord's Resurrection September 6, 2018 September 26, 2018
11 The Young Girl Awakens September 13, 2018 October 3, 2018
12 Battle for Legitimacy September 20, 2018 October 10, 2018
# Title Airdate
Japanese English
1 Head Priest April 9, 2021
2 Head Paladin April 16, 2021
3 Immoral Ritual April 23, 2021



Character Voice actor Anime


Japanese English
Diablo/Diablo Masaaki Mizunaka
Fumiko Uchimura (child)
Eric Vale Episode 1
Rem Galleu Azumi Waki Jad Saxton Episode 1
Shera L. Greenwood Yū Serizawa Sarah Wiedenheft Episode 1


Character Voice Actor Anime Appearance
Japanese English
Alicia Crystella Yumi Hara Sara Ragsdale Episode 5
Sylvie Rumi Okubo Leah Clark Episode 2
Edelgard Emiri Katō Kristi Rothrock Episode 3
Klem Atsumi Tanezaki Madeleine Morris Episode 10
Mei Yūka Morishima Kimberly Grace Episode 1
Celestine Baudelaire Sayaka Senbongi Marissa Lenti Episode 1
Emile Bichelberger Ryōtarō Okiayu Clifford Chapin Episode 3
Keera L. Greenwood Akira Ishida Stephen Fu Episode 6
Chester Ray Galford Akio Ōtsuka Brian Mathis Episode 5


Character Voice actor Anime Appearance
Japanese English
Galluk Yasuaki Takumi Chris Gardner Episode 1
Celsior Tatsuyuki Kobayashi Clay Wheeler Episode 2
Boris Marcus Ueki Shinei Matt Shipman Episode 3
Gregore Toru Sakurai Chris Gardner Episode 3
Medios Sayaka Ohara Morgan Garrett Episode 6
Saddler Daisuke Namikawa Anthony Bowling Episode 9
Eulerex Kenji Kitamura Andy Mullins Episode 10
Delouche Xandros Hijiri Tajiri Episode 10


Season 1

Season 2


Role Season 1 Season 2
Director Yūta Murano Satoshi Kuwabara
Series Composition Kazuyuki Fudeyasu
Character Design Shizue Kaneko
Music Yusuke Kato
Chief Animation Director Yuki Nishioka
Monster Designer/
Action Animation Director
Yuki Miyamoto
Animation Production Ajia-do Animation Works Tezuka Productions
Okuruto Noboru


  • The English voice actors of Rem, Alicia, Shera, Sylvie and Diablo also voice Kanna Kamui, Riko Saikawa, Tohru, Miss Kobayashi and Tatsuta (the butcher; Eric Vale also did other minor voice roles) in Miss Kobayashi's Dragon Maid.
    • The English voice actors of Krebskulm, Saddler, Celestine, and Medios also have minor voice roles in Miss Kobayashi's Dragon Maid.


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