Andreas Riise is a prominent antagonist in the anime series 'Saint Seiya: Soul of Gold.' He serves as the new representative of Yggdrasil and the Grand Master of Asgard. Charismatic and intelligent, Andreas manipulates events from behind the scenes, seeking to harness the power of the Yggdrasil tree for his own ambitions. His actions put him at odds with the Gold Saints, making him a central figure in their struggle to protect Asgard from destruction.