is a series of Japanese light novels written by Tomo Takabayashi and illustrated by Temari Matsumoto.

The story follows the adventures of Yuri Shibuya, an average 15-year-old Japanese high school student, who is suddenly transported to another world where he is told that he is now the king of demons.

[2] While on his way home from school, Yuri Shibuya sees his classmate, Ken Murata, being harassed by bullies.

Unknown to Yuri, among the nobles in the Demon Kingdom, a slap on the cheek is considered a marriage proposal.

After Yuri wins by using magical powers he was unaware he possessed, he is accepted as the true demon king.

The story follows Yuri on his adventures trying to learn the ways of the Great Demon Kingdom while battling discrimination and fear.

His ultimate goal is to bring peace to both demons and humans, hoping to one day live together while avoiding war at all costs.

Even though he has the choice of leaving his responsibilities to his advisers, he continues to involve himself in most affairs in the belief that to be a great king he must be willing to know his subjects and risk everything to protect the kingdom.

For example, Yuri and Wolfram are engaged, and a number of jokes in the series revolve around misunderstandings that arise from this arrangement.

in Japanese) debuted in June 2005 issue of the monthly Asuka magazine on April 23, 2005,[4] and ended on July 23, 2016.

The anime was originally licensed for release in North America by Geneon under the title Kyo Kara Maoh!

Save Our King!, but when Geneon ceased production of their titles in late 2007, it left three volumes of the second season unreleased on DVD in North America.

Carlo Santos called the series "an unusual take on the fantasy genre" due to its "toilet portals between worlds" and its "same-sex engagement.

Mania called the series a mixture of fantasy, baseball, and slice of life genres, saying it works "really well.'.

[20] Danica Davidson, Graphic Novel Reporter called the manga a "fun and whimsical read" which has fascinating characters and "a strong storyline.