Makai Ouji: devils and realist is a tV series anime that premiered in summer 2013, produced by Doga Kobo.

About the production: the story comes from a manga, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are comedy, fantasy, mystery and supernatural, with themes such as Demons, Josei, Primarily Male Cast and Foreign.

On AniList, Makai Ouji: devils and realist has an average score of 64%, an average score, and appears on 20,489 users' lists.

The story revolves around William, an aristocratic family's progeny with rare intellect. One day, his uncle lost his possessions after his business failed. Fearing that his family's name has been tarnished, William returns home and searches with his family's butler for anything that can be converted into cash. A search of the premises yields an underground room left by an ancestor. In the room is a magical seal, and William unintentionally summons a devil. The summoned devil tells William his name Dantalion, and reveals that William is the designator who can choose the acting ruler of the demon world. (Source: Anime News Network)

Official synopsis from AniList.