Kyo Kara Maoh R is a oVA anime that premiered in fall 2007, produced by Studio DEEN.

About the production: the story comes from a light novel, there are 5 episodes of about 25 minutes and its current status is "finished".

Its main genres are adventure, comedy and fantasy, with themes such as Boys' Love, Primarily Male Cast, Male Protagonist and Male Harem.

On AniList, Kyo Kara Maoh R has an average score of 70%, a good score, and appears on 4,437 users' lists.

The franchise continues in or follows from: Kyou kara Maou! and Kyou kara Maou! 3rd Series.

Life has returned to some form of normalcy after the end of the series, and so His Majesty Yuuri Shibuya travels to oversee how things are going. While doing so, he runs into the king of Small Shimeron--Sararegi. But it seems there may be something more to him than the friendly king he presents himself as. Yuuri go back to Shimaron to relax and meet some friends, when the "king" of Little Shimaron suddenly joins the group and wants the Maou to come to his country. The Original king sends a message to Yuuri's brother and his friend that Yuuri is in trouble. (Source: Anime News Network)

Official synopsis from AniList.