One day, Koyuki, a girl who works at a tavern in the port city of Salim, is saved from the advances of a feudal lord by a pair of twin princes, the cool and collected older brother Eleven and the free-spirited younger brother Twelve. After they invite her to the palace, Koyuki begins to learn the truth and destiny of the Empire. A royal fantasy revolving around the myths of the desert empire Orchis!! (Source: Jmanga)

12-ji no Kenryokusha was partially published digitally in English as The Twelve Hour Ruler by JManga. The publisher closed down in 2013 and the translated manga can no longer be viewed.