Siama Rya is a large nebula located approximately 80 light years south of Yamatai Star System. It is the remnants of a binary star system that the companion star exploded approximately 800 years ago. This is where Mui Kotoz clan leader of the Poku'vonai brought them at the end of the the Norka (The Exodus). The Poku'vonai who survived the journey created the Sotâka Ruomâqi (World Station) and formed the Poku Saeruo Degonjo.
At the center of the nebula lies Degonjo Saeruo (Hidden Sun System).