The Desert Pearl (VxBTS)

The desert kingdom of Ulluran has been taken by the Jeon Empire. The desert kingdom has always been a peaceful one, prosperous and said to be loved by the gods. It has been said that the Byun line has been graced by the gods, they say that so long as a Byun holds the throne the lands will always prosper. Due to this kings from all over have sought to steal and mate a Byun into their royal line, there is a problem though. The Byun line only ever has a single son, no girls. No matter how hard people have tried they have never discovered a female Byun, nor have they have met the women that births the Byun children. The kingdom is a mystery and many have left the kingdom be. That is until the six kings of the Jeon Empire invade one day and demand to meet the mysterious SECOND prince of Ulluran. Now with secrets on the line and mysteries to uncover, everyone wants to see the second prince, the pearl of the desert, Byun Taehyung

This is kind of like a harem story so be prepared for that. Also it has the potential for mpreg so if ya don't like that just be warned. Rad.