Maruma Series

Also known as: まるマ シリーズ, Kyou Kara Maou!, Kyo Kara Maoh!, Ab sofort Dämonenkönig, God (?) Save Our King! From Today, Kyou Kara Ma no Tsuku Jiyuugyou

by Tomo Takabayashi

Kyou Kara Ma no Tsuku Jiyuugyou is the novel the anime and manga are based on. It's about a boy named Yuuri, who gets himself flushed down a toilet into another world. There, he finds out he's the Maoh (demon king) and that the Mazoku (demons) expect him to lead them against the human race. The novel is told from Yuuri's PoV, with plenty of side-commentary that is left out of the show.