Tao'yusao Se'ang se Ru'a was the final Emperor of the Xi'an Empire (SaoXy'an) belonging to the Imperial Line Ru'a, the ruling House of the First Imperial Age (MXY I.0 - I.14680 / SEY 19668 - 878 BCE). He was the only son of his mother Tao'nuasao Ch.ul'ē se Ru'a, who died at an unexpectedly young age without further issue, leaving Se'ang the only Ru'a qualified to inherit the crown. Faced with an unprecedented situation, Se'ang worked together with Ru'a's Council of Three to devise a method to choose the next Imperial House. Ultimately, the method they devised selected House Xy.ō as the successor to the throne, and Se'ang voluntarily stepped down to allow Y.ah'a se Xy.ō to ascend as the first Emperor of the Second Imperial Age (MXY II.0 - II.1824 / SEY 878 BCE - SEY 1457 CE). He retired to R.aip'uāng (Kai'pua II) and spent his remaining decades studying Li'tova.