Maoyū Maō Yūsha (まおゆう魔王勇者 Archenemy and Hero, also known as Maoyu and stylized as MAOYU) is a light novel series by Mamare Tōno. The series has been adapted into multiple manga series and an anime series is airing right now.
In a world embroiled by war between Humans and Demons, the Humans' greatest hero invades the Demon King's castle in the hopes of vanquishing her.
Instead of fighting back, the Queen proposes an alliance with the Hero. She explains how a sudden end to the war can bring further chaos to the world. The Humans who were united to stand against their common enemies would eventually begin fighting among themselves, with similar issues already occurring at the Demon Realm.
Convinced by her words, the Hero joins forces with the Queen and together they execute a plan to bring prosperity and a lasting peace to both Humans and Demons alike.
- Main article: Anime
In June 2012, Pony Canyon announced that it will produce an anime series based on it and an adaptation by ARMS and directed by Takeo Takahashi began to air on January 4, 2013. The anime is simulcast by Crunchyroll.