Magic, martial arts, steam and fantasy sealed in a world enclosed by sand. Oahisu tells a story of three bandits that were bound together in order to achieve great fortunes on robbing wealthy merchants blind. One of the caravans though turns out to carry something much more dangerous and far more valuable than any treasure in the land. Su, Ren and Tae "rescue" a dragon ambassador which also turns out to be the daughter of the ruling dragon couple, which are likely to go look for their lost child and burn everything in their way if she will not return to the dragon gates in due time. Seeing no other choice, the three bandits embark on the dangerous task with hopes of receiving a wish from the creators of their world.