Maou Sadao, VS Battles Wiki

Maou Sadao (also known as "Satan Jacob") is the main protagonist of his series "The Devil is a Part-Timer". He was once the Demon King who fought the humans of Ente Isla in an attempt to annex the four continents. However due to the actions of the Hero Emilia Justina and her companions he was forced to retreat to Earth and nearly lost all his powers. He now works as a part-timer in a fast food chain restaurant and is trying to regain his old power and to get promoted as much as possible. However

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