In the land of magic, a new king is being crowned. However, a mishap during the ceremonial rite causes the royal crest to be accidentally attached to a normal human, Kazuomi. To protect the crest from any villains who may be after it, Mewt, the cute and brave sorcerer, is dispatched to the human world. There, Mewt must live disguised as a girl, and as "she" and Kazuomi live under one roof together, the two begin to find themselves attracted to each other... (Source: Juné)

Boku dake no Ousama was published in English as My Only King by Digital Manga Publishing under the Juné Manga imprint on March 1, 2006.