The Devil is a Part-Timer!

is a Japanese light novel series written by Satoshi Wagahara, with illustrations by 029. The series began publication on February 10, 2011 by ASCII Media Works under their Dengeki Bunko publishing imprint.

The series won the Silver Prize in the 17th Dengeki Novel Prize.

The Series has been licensed for an English release by Yen Press under their Yen On imprint.

Story
The Demon Lord Satan seeks to conquer the world of Ente Isla by annexing its four continents with the help of his demon generals Alciel, Lucifer, Malacoda, and Adramelech. After being confronted by the hero Emilia and her companions, after they had killed Malacoda and Adramelech, Satan and Alciel escape the world of Ente Isla through a gate to modern Tokyo, Japan. However, due to the lack of magic in the modern contemporary world, both Satan and Alciel change into forms representing what they would look like if they were human. In order to survive, Satan takes a part-time job in a fast food restaurant named MgRonald, while Alciel serves as his houseman. One day, Satan, who now goes by Sadao Maou, meets a girl who is actually Emilia in the form of Emi Yusa. The story then unfolds and explores the personalities of each of the characters and their moral values. More characters show up from Ente Isla and they too face the new world dilemmas, often comically.

Characters

 * Sadao Maou
 * Emi Yusa
 * Chiho Sasaki
 * Shirou Ashiya / Alciel
 * Hanzou Urushihara / Lucifer
 * Suzuno Kamazuki / Crestia Bell
 * Alas Ramus
 * Olba Meyer
 * Emeralda Etuva

The Devil is a Part-Timer!
The manga adaptation of the light novel: with art by Akio Hiragi. It was serialised in Dengeki Daioh and released under the Dengeki Comics imprint from June 2012.

The Devil is a Part-Timer! High School
A manga spin-off on the light novel, where the characters are in high school. It features are by Kurone Mishima and was serialised in Dengeki Maoh and released under the Dengeki Comics EX imprint from January 2013.

The Devil is a Part-Timer!: Meshi
The manga adaptation of the light novel: The Devil is a Part-Timer!: Meshi, with art by Uoji Sada. It was serialised on ComicWalker and published under the Dengeki Comics NEXT from March 2020.

Anime
The anime adaptation of the light novel, produced by WHITE FOX. It aired for 13 episodes between April 4, 2013 and June 27, 2013. The second season of the anime that adapted the light novel was produced by Studio 3Hz and released between July 2022 and September 2022. A third season has been announced and not yet released.
 * see: The Devil is a Part-Timer! (Anime)